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- Y. –C. Lin, C. –H. Chen, R. –H. Li, C. –S. Tsao, A. Saeki, H. –C. Wang, B. Chang, L. –Y. Huang, Y. Yang, K. –H. Wei, “Atom-Varied Side Chains in Conjugated Polymers Affect Efficiencies of Photovoltaic Devices Incorporating Small Molecules”
ACS Appl. Polym. Mater. 2 (2020) 636−646.
DOI:10.1021/acsapm.9b00998 - Y. –L. Kuo, C. –Y. Tseng, C. –W. Tseng, K. –T. Chu, Y. –C. Liu, M. –H. Chiang, A. Saeki, Y. –T. Tao, H. –H. Chen, “Polymerization of Columnar Mesogens Tethered with Diacetylenic Side Chains”
ACS Appl. Polym. Mater. 2 (2020) 248-255.
DOI:10.1021/acsapm.9b00769 - Y. Kamakura, P. Chinapang, S. Masaoka, A. Saeki, K. Ogasawara, S. R. Nishitani, H. Yoshikawa, T. Katayama, N. Tamai, K. Sugimoto, D. Tanaka, “Semiconductive Nature of Lead-Based Metal−Organic Frameworks with Three-Dimensionally Extended Sulfur Secondary Building Units”
J. Am. Chem. Soc. 142 (2020) 27-32.
DOI:10.1021/jacs.9b10436 - A. Nakada, H. Suzuki, J. J. M. Vequizo, K. Ogawa, M. Higashi, A. Saeki, A. Yamakata, H. Kageyama, R. Abe, “Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z‑Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer”
ACS Appl. Mater. Interfaces 11 (2019) 45606-45611.
DOI:10.1021/acsami.9b14802 - M. Carini, M. Marongiu, K. Strutyński, A. Saeki, M. Melle-Franco, A. Mateo-Alonso, “Hooking Together Sigmoidal Monomers into Supramolecular Polymers”
Angew. Chem. Int. Ed. 58 (2019) 15788-15792.
DOI:10.1002/anie.201910818 - A. Ghosh, M. Yoshida, K. Suemori, H. Isago, N. Kobayashi, Y. Mizutani, Y. Kurashige, I. Kawamura, M. Nirei, O. Yamamuro, T. Takaya, K. Iwata, A. Saeki, K. Nagura, S. Ishihara, T. Nakanishi, “Soft chromophore featured liquid porphyrins and their utilization toward liquid electret applications”
Nature Commun. 10 (2019) 4210/1-9.
DOI:10.1038/s41467-019-12249-8 - K. Aoshima, M. Nomura, A. Saeki, “Regioregularity and Electron Deficiency Control of Unsymmetric Diketopyrrolopyrrole Copolymers for Organic Photovoltaics”
ACS Omega 4 (2019) 15645-15652.
DOI:10.1021/acsomega.9b02146 - M. Martínez-Abadía, C. T. Stoppiello, K. Strutynski, B. Lerma-Berlanga, C. Martí-Gastaldo, A. Saeki, M. Melle-Franco, A. N. Khlobystov, A. Mateo-Alonso, “A Wavy Two-Dimensional Covalent Organic Framework from Core-Twisted Polycyclic Aromatic Hydrocarbons”
J. Am. Chem. Soc. 141 (2019) 14403-14410.
DOI:10.1021/jacs.9b07383 - H. Suzuki, M. Higashi, H. Kunioku, R. Abe, A. Saeki, “Photoconductivity−Lifetime Product Correlates Well with the Photocatalytic Activity of Oxyhalides Bi4TaO8Cl and PbBiO2Cl: An Approach to Boost Their O2 Evolution Rates”
ACS Energy Lett. 4 (2019) 1572-1578.
DOI:10.1021/acsenergylett.9b00793 - P. J. S. Rana, T. Swetha, H. Mandal, A. Saeki, P. R. Bangal, S. P. Singh “Energy Transfer Dynamics of Highly Stable Fe3+ Doped CsPbCl3 Perovskite Nanocrystals with Dual-Color Emission”
J. Phys. Chem. C 123 (2019) 17026-17034.
DOI:10.1021/acs.jpcc.9b04412 - R. Nishikubo, A. Saeki,“Comparative Study of Charge Carrier Dynamics in Bismuth-based Dimer and Double Perovskites”
J. Photopolym. Sci. Tech. 32 (2019) 735-740.
DOI:10.2494/photopolymer.32.735 - S. Seo, I. Jeon, R. Xiang, C. Lee, H. Zhang, T. Tanaka, J.-W. Lee, D. Suh, T. Ogamoto, R. Nishikubo, A. Saeki, S. Chiashi, J. Shiomi, H. Kataura, H. M. Lee, Y. Yang, Y. Matsuo, S. Maruyama, “Semiconducting carbon nanotubes as crystal growth templates and grain bridges in perovskite solar cells”
J. Mater. Chem. A 7 (2019) 12987-12992.
DOI:10.1039/c9ta02629k - A. Nakada, M. Higashi, T. Kimura, H. Suzuki, D. Kato, H. Okajima, T. Yamamoto, A. Saeki, H. Kageyama, R. Abe,“Band Engineering of Double-Layered Sillén–Aurivillius Perovskite Oxychlorides for Visible-Light-Driven Water Splitting”
Chem. Mater. 31 (2019) 3419-3429.
DOI:10.1021/acs.chemmater.9b00567 - T. Ghosh, S. Nagasawa, N. Raveendran, V. Darshan, A. Saeki, V. C. Nair,“Preferential Face-on and Edge-on Orientation of Thiophene Oligomers by Rational Molecular Design”
Chem. Asian J. 14 (2019) 963-967.
DOI:10.1002/asia.201900024 - M. Martínez-Abadía, G. Antonicelli, A. Saeki, M. Melle-Franco, A. Mateo-Alonso,“Isolation and Characterization of the Unexpected 1-n-Octyloxyperopyrene: A Solution-Processable p-Type Organic Semiconductor”
J. Org. Chem. 84 (2019) 3270-3274.
DOI:10.1021/acs.joc.8b03207 - K. Yamada, H. Suzuki, R. Abe, A. Saeki,“Complex Photoconductivity Reveals How the Nonstoichiometric Sr/Ti Affects the Charge Dynamics of a SrTiO3 Photocatalyst”
J. Phys. Chem. Lett. 10 (2019) 1986-1991.
DOI:10.1021/acs.jpclett.9b00880 - T. Nakamura, N. Shioya, T. Shimoaka, R. Nishikubo, T. Hasegawa, A. Saeki, Y. Murata, R. Murdey, A. Wakamiya,“Molecular Orientation Change in Naphthalene Diimide Thin Films Induced by Removal of Thermally Cleavable Substituents”
Chem. Mater. 31 (2019) 1729-1737.
DOI:10.1021/acs.chemmater.8b05237 - A. Asaithambi, D. Okada, G. Prinz, H. Sato, A. Saeki, T. Nakamura, T. Nabeshima, Y. Yamamoto, A. Lorke, “Polychromatic Photoluminescence of Polymorph Boron Dipyrromethene Crystals and Heterostructures”
J. Phys. Chem. C 123 (2019) 5061-5066.
DOI:10.1021/acs.jpcc.8b09202 - A. Jindal, H. Kotani, S. Kushida, A. Saeki, T. Kojima, Y. Yamamoto, “Significant Enhancement of Hole Transport Ability in Conjugated Polymer/Fullerene Bulk Heterojunction Microspheres”
ACS Appl. Polym. Mater. 1 (2019) 118-123.
DOI:10.1021/acsapm.8b00170 - C. Gozalvez, J. L. Zafra, A. Saeki, M. Melle-Franco, J. Casado, A. Mateo-Alonso, “Charge transport modulation in pseudorotaxane 1D stacks of acene and azaacene derivatives”
Chem. Sci. 10 (2019) 2743-2749.
DOI:10.1039/c8sc04845b - K. Ogawa, A. Nakada, H. Suzuki, O. Tomita, M. Higashi, A. Saeki, H. Kageyama, R. Abe, “Flux Synthesis of Layered Oxyhalide Bi4NbO8Cl Photocatalyst for Efficient Z-Scheme Water Splitting Under Visible Light”
ACS Appl. Mater. Interfaces 11 (2019) 5642-5650.
DOI:10.1021/acsami.8b06411 - Y. –C. Lin, Y. –J. Lu, C. –S. Tsao, A. Saeki, J. –X. Li, C. –H. Chen, H. –C. Wang, H. –C. Chen, D. Meng, K. –H. Wu, Y. Yang, K. –H. Wei, “Enhancing photovoltaic performance by tuning the domain sizes of a small-molecule acceptor by side-chain-engineered polymer donors”
J. Mater. Chem. A 7 (2019) 3072-3082.
DOI:10.1039/c8ta11059j - S. Ghosh, R. Raveendran, A. Saeki, S. Seki, M. Namboothiry, A. Ajayaghosh, “Charge Carrier Polarity Modulation in Diketopyrrolopyrrole-Based Low Band Gap Semiconductors by Terminal Functionalization”
ACS Appl. Mater. Interfaces 11 (2019) 1088-1095.
DOI:10.1021/acsami.8b16714 - J. P. Mora-Fuentes, A. Riaño, D. Cortizo-Lacalle, A. Saeki, M. Melle-Franco, A. Mateo-Alonso, “Giant Star-Shaped Nitrogen-Doped Nanographenes”
Angew. Chem. Int. Ed. 58 (2019) 552-556.
DOI:10.1002/anie.201811015 - T. Yamamoto, M. Hosokawa, M. Nakamura, S.-i. Sato, T. Isono, K. Tajima, T. Satoh, M. Sato, Y. Tezuka, A. Saeki, Y. Kikkawa, “Synthesis, Isolation, and Properties of All Head-to-Tail Cyclic Poly(3-hexylthiophene): Fully Delocalized Exciton over the Defect-Free Ring Polymer”
Macromolecules 51 (2018) 9284-9293.
DOI:10.1021/acs.macromol.8b01681 - H. Liu, M. Ozaki, S. Yakumaru, T. Handa, R. Nishikubo, Y. Kanemitsu, A. Saeki, Y. Murata, R. Murdey, A. Wakamiya, “Lead-Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation”
Angew. Chem. Int. Ed. 57 (2018) 13221-13225.
DOI:10.1002/anie.201808385 - R. Nishikubo, A. Saeki, “Solution-Processed Bi2S3 Photoresistor Film To Mitigate a Trade-off between Morphology and Electronic Properties”
J. Phys. Chem. Lett. 9 (2018) 5392-5399.
DOI:10.1021/acs.jpclett.8b02218 - K. Aoshima, M. Ide, A. Saeki, “Organic Photovoltaics of Diketopyrrolopyrrole Copolymers with Unsymmetric and Regiorandom Configuration of the Side Units”
RSC Adv. 8 (2018) 30201-30206.
DOI:10.1039/c8ra05903a - S. Ghosh, S. Das, A. Saeki, V. K. Praveen, S. Seki, A. Ajayaghosh, “A Hybrid Organogel of a Low Band Gap Diketopyrrolopyrrole with PC71BM: Phase Separated Morphology and Enhanced Photoconductivity”
ChemNanoMat 4 (2018) 831-836.
DOI:10.1002/cnma.201800149 - K. Yamada, R. Nishikubo, H. Oga, Y. Ogomi, S. Hayase, S. Kanno, Y. Imamura, M. Hada, A. Saeki, “Anomalous Dielectric Behavior of a Pb/Sn Perovskite: Effect of Trapped Charges on Complex Photoconductivity”
ACS Photonics 5 (2018) 3189-3197.
DOI:10.1021/acsphotonics.8b00422 - M. Martínez-Abadía, G. Antonicelli, A. Saeki, A. Mateo-Alonso,“Readily Processable Hole-Transporting Peropyrene Gels”
Angew. Chem. Int. Ed. 57 (2018) 8209-8213.
DOI:10.1002/anie.201804453 - S. Izakura, W. Gu, R. Nishikubo, A. Saeki, “Photon Upconversion through a Cascade Process of Two-Photon Absorption in CsPbBr3 and Triplet–Triplet Annihilation in Porphyrin/Diphenylanthracene”
J. Phys. Chem. C 122 (2018) 14425-14433.
DOI:10.1021/acs.jpcc.8b05508 - K. Yamada, A. Saeki “Photoconductivity of Pb-Sn Perovskite Induced by UV Pump and IR Push Pulses”
J. Photopolym. Sci. Tech. 31 (2018) 157-162.
DOI:10.2494/photopolymer.31.157 - A. Nakada, A. Saeki, M. Higashi, H. Kageyama, R. Abe, “Two-step synthesis of Sillén-Aurivillius type oxychlorides to enhance their photocatalytic activity for visible-light-induced water splitting”
J. Mater. Chem. A 6 (2018) 10909-10917.
DOI:10.1039/c8ta03321h - S. Nagasawa, E. Al-Naamani, A. Saeki,“Computer-Aided Screening of Conjugated Polymers for Organic Solar Cell: Classification by Random Forest”
J. Phys. Chem. Lett. 9 (2018) 2639-2646.
DOI:10.1021/acs.jpclett.8b00635 - I. Jeon, H. Ueno, S. Seo, K. Aitola, R. Nishikubo, A. Saeki, H. Okada, G. Boschloo, S. Maruyama, Y. Matsuo, “Lithium-Ion Endohedral Fullerene (Li+@C60) Dopants in Stable Perovskite Solar Cells Induce Instant Doping and Anti-Oxidation”
Angew. Chem. Int. Ed. 57 (2018) 4607-4611.
DOI:10.1002/anie.201800816 - A. Zielinska, A. Takai, H. Sakurai, A. Saeki, M. Leonowicz, T. Nakanishi, “A Spin-Active, Electrochromic, Solvent-Free Molecular Liquid Based on Double-Decker Lutetium Phthalocyanine Bearing Long Branched Alkyl Chains”
Chem. Asian J. 13 (2018) 770-774.
DOI:10.1002/asia.201800175 - D. Cortizo-Lacalle, J. P. Mora-Fuentes, K. Strutyński, A. Saeki, M. Melle-Franco, A. Mateo-Alonso, “Monodisperse N-Doped Graphene Nanoribbons Reaching 7.7 Nanometers in Length”
Angew. Chem. Int. Ed. 57 (2018) 703-708.
DOI:10.1002/anie.201710467 - Y. Kage, S. Mori, M. Ide, A. Saeki, H. Furuta, S. Shimizu, “Blackening of aza-BODIPY analogues by simple dimerization: panchromatic absorption of a pyrrolopyrrole aza-BODIPY dimer”
Mater. Chem. Front. 2 (2018) 112-120.
DOI:10.1039/c7qm00438a - S. S. Reddy, S. Shin, U. K. Aryal, R. Nishikubo, A. Saeki, M. Song, S.-H. Jin, “Highly efficient air-stable/hysteresis-free flexible inverted-type planar perovskite and organic solar cells employing a small molecular organic hole transporting material”
Nano Energy 41 (2017) 10-17
DOI:10.1016/j.nanoen.2017.09.009 - F. Caraballo, M. Kumano, A. Saeki, “Spatial Inhomogeneity of Methylammonium Lead-Mixed Halide Perovskite Examined by Space- and Time-Resolved Microwave Conductivity”
ACS Omega 2 (2017) 8020-8026.
DOI: 10.1021/acsomega.7b01471 - M. Ozaki, Y. Katsuki, J. Liu, T. Handa, R. Nishikubo, S. Yakumaru, Y. Hashikawa, Y. Murata, T. Saito, Y. Shimakawa, Y. Kanemitsu, A. Saeki, A. Wakamiya, “Solvent-Coordinated Tin Halide Complexes as Purified Precursors for Tin-Based Perovskites”
ACS Omega 2 (2017) 7016-7021
DOI: 10.1021/acsomega.7b01292 - E. Al-Naamani, A. Gopal, M. Ide, I. Osaka, A. Saeki, “Exploring Alkyl Chains in Benzobisthiazole-Naphthobisthiadiazole Polymers: Impact on Solar-Cell Performance, Crystalline Structures, and Optoelectronics“
ACS Appl. Mater. Interfaces 9 (2017) 37702-37711.
DOI: 10.1021/acsami.7b10619 - K. Kranthiraja S. H. Park, H. Kim, K. Gunasekar, G. Han, B. J. Kim, C. S. Kim, S. Kim, H. Lee, R. Nishikubo, A. Saeki, S.-H. Jin, M. Song, “Accomplishment of Multifunctional π-Conjugated Polymers by Regulating the Degree of Side-Chain Fluorination for Efficient Dopant-Free Ambient-Stable Perovskite Solar Cells and Organic Solar Cells“
ACS Appl. Mater. Interfaces 9 (2017) 36053-36060.
DOI: 10.1021/acsami.7b09146 - M. Tamada, T. Iino, Y. Wang, M. Ide, A. Saeki, H. Furuta, N. Kobayashi, S. Shimizu, “Facile synthesis of dimeric aza-BODIPY analogues from electron-deficient bislactams and their intriguing optical and electrochemical properties“
Tetrahed. Lett. 58 (2017) 3151-3154.
DOI: 10.1016/j.tetlet.2017.06.088 - R. Nishikubo, N. Ishida, Y. Katsuki, A. Wakamiya, and A. Saeki, "Minute-Scale Degradation and Shift of Valence Band Maxima of (CH3NH3)SnI3 and HC(NH2)2SnI3 Perovskite upon Air Exposure"
J. Phys. Chem. C 121 (2017) 19650-19656.
DOI:10.1021/acs.jpcc.7b06294 - Y. Shimata, and A. Saeki, “Hole Relaxation in Polymer:Fullerene Solar Cells Examined by the Simultaneous Measurement of Time-of-Flight and Time-Resolved Microwave Conductivity”
J. Phys. Chem. C 121 (2017) 18351-18359.
DOI: 10.1021/acs.jpcc.7b05212 - S. Kanno, Y. Imamura, A. Saeki, and M. Hada, “Rotational Energy Barriers and Relaxation Times of the Organic Cation in Cubic Methylammonium Lead/Tin Halide Perovskites from First Principles”
J. Phys. Chem. C 121 (2017) 14051-14059.
DOI: 10.1021/acs.jpcc.7b04589 - M. Ide, and A. Saeki, “Fluorinated Benzothienoisoindigo Copolymers for Organic Solar Cells: A Comparative Study on Polymer Orientation and Device Performance”
Chem. Lett.46 (2017) 1133-1136.
DOI: 10.1246/cl.170307 - T. Fujikawa, N. Mitoma, A. Wakamiya, A. Saeki, Y. Segawa, K. Itami, “Synthesis, properties, and crystal structures of π-extended double [6]helicenes: contorted multi-dimensional stacking lattice”
Org. Biomol. Chem. 15 (2017) 4697-4703.
DOI: 10.1039/C7OB00987A - F. Lu, T. Takaya, K. Iwata, I. Kawamura, A. Saeki, M. Ishii, K. Nagura, T. Nakanishi, “A Guide to Design Functional Molecular Liquids with Tailorable Properties using Pyrene-Fluorescence as a Probe”
Sci. Rep. 7 (2017) 3416/1-12.
DOI: 10.1038/s41598-017-03584-1 - R. Nishikubo, N. Tohnai, I. Hisaki, A. Saeki, “Thermoresponsive Emission Switching via Lower Critical Solution Temperature Behavior of Organic–Inorganic Perovskite Nanoparticles”
Adv. Mater. 29 (2017) 1700047/1-8.
DOI: 10.1002/adma.201700047 - K. Kranthiraja, K. Gunasekar, H. Kim, A.-N. Cho, N.-G. Park, S. Kim, B. J. Kim, R. Nishikubo, A. Saeki, M. Song, S.-H. Jin, “High-Performance Long-Term-Stable Dopant-Free Perovskite Solar Cells and Additive-Free Organic Solar Cells by Employing Newly Designed Multirole π-Conjugated Polymers”
Adv. Mater.29 (2017) 1700183/1-8.
DOI: 10.1002/adma.201700183 - S. Ghosh, D. S. Philips, A. Saeki, A. Ajayaghosh, “Nanosheets of an Organic Molecular Assembly from Aqueous Medium Exhibit High Solid-State Emission and Anisotropic Charge-Carrier Mobility”
Adv. Mater.29 (2017) 1605408/1-6.
DOI: 10.1002/adma.201605408 - B. Balan, J. S. Panicker, S. Nagasawa, A. Saeki, and V. C. Nair, “Synthesis and Optoelectronic Properties of Thiophene-Based Semiconducting Oligomers”
ChemistrySelect 1 (2016) 6872-6879.
DOI: 10.1002/slct.201601547 - M. Kumano, M. Ide, N. Seiki, Y. Shoji, T. Fukushima, and A. Saeki, “A ternary blend of a polymer, fullerene, and insulating self-assembling triptycene molecules for organic photovolatics”
J. Mater. Chem. A 4 (2016) 18490-18498.
DOI: 10.1039/C6TA07705F - V. S. Nair, R. D. Mukhopadhyay, A. Saeki, S. Seki, and A. Ajayaghosh, “A π-gel scaffold for assembling fullerene to photoconducting supramolecular rods”
Sci. Adv. 2 (2016) e1600142/1-9.
DOI: 10.1126/sciadv.1600142 - T. Ghosh, A. Gopal, S. Nagasawa, N. Mohan, A. Saeki, and V. C. Nair, “Following the TRMC Trail: Optimization of Photovoltaic Efficiency and Structure–Property Correlation of Thiophene Oligomers”
ACS Appl. Mater. Interfaces 8 (2016) 25396-25404.
DOI: 10.1021/acsami.6b07508 - F. K.-C. Leung, F. Ishiwari, T. Kajitani, Y. Shoji, T. Hikima, M. Takata, A. Saeki, S. Seki, Y. M. A. Yamada, and T. Fukushima, “Supramolecular Scaffold for Tailoring the Two-Dimensional Assembly of Functional Molecular Units into Organic Thin Films”
J. Am. Chem. Soc. 138 (2016) 11727-11733.
DOI: 10.1021/jacs.6b05513 - N. Ishida, A. Wakamiya, and A. Saeki, “Quantifying Hole Transfer Yield from Perovskite to Polymer Layer: Statistical Correlation of Solar Cell Outputs with Kinetic and Energetic Properties”
ACS Photonics 3 (2016) 1678-1688.
DOI: 10.1021/acsphotonics.6b00331 - Y. Shimata, M. Ide, M. Tashiro, M. Katouda, Y. Imamura, and A. Saeki, “Charge Dynamics at Heterojunction between Face-on/Edge-on PCPDTBT and PCBM Bilayer: Interplay of Donor/Acceptor Distance and Local Charge Carrier Mobility”
J. Phys. Chem. C120 (2016) 17887-17897.
DOI: 10.1021/acs.jpcc.6b04827 - M. Ide, Y. Koizumi, and A. Saeki, “Control of Phase Separation of Benzothienoisoindigo-Benzodithiophene Copolymer for Organic Photovoltaics”
J. Photopolym. Sci. Tech. 29 (2016) 565-569.
DOI: 10.2494/photopolymer.29.565 - T. Wasin, K. Enomoto, T. Sakurai, V. S. Padalkar, H. L. Cheng, M. T. Tang, A. Horio, D. Sakamaki, M. Omichi, A. Saeki, K. Kikuchi, Y. Hori, A. Chiba, Y. Saito, T. Kamiya, M. Sugimoto, and S. Seki “Fabrication of “Clickable” Polyfluorene Nanowires with High Aspect Ratio as Biological Sensing Platforms”
ACS Sens. 1 (2016) 766-774.
DOI: 10.1021/acssensors.6b00070 - S. Kushida, D. Braam, T. D. Dao, H. Saito, K. Shibasaki, S. Ishii, T. Nagao, A. Saeki, J. Kuwabara, T. Kanbara, M. Kijima, A. Lorke, and Y. Yamamoto, “Conjugated Polymer Blend Microspheres for Efficient, Long-Range Light Energy Transfer”
ACS Nano 10 (2016) 5543-5549.
DOI: 10.1021/acsnano.6b02100 - S. Kushida, S. Okabe, T. D. Dao, S. Ishii, T. Nagao, A. Saeki, M. Kijima, and Y. Yamamoto,“Self-assembled polycarbazole microspheres as single-component, white-colour resonant photoemitters”
RSC Adv. 6 (2016) 52854-52857.
DOI: 10.1039/C6RA10662E - I. Hisaki, K. Osaka, N. Ikenaka, A. Saeki, N. Tohnai, S. Seki, and M. Miyata, “Arrangement Modulation of π-Stacked Columnar Assemblies of Octadehydrodibenzo[12]annulene: Substituent Effects of Peripheral Thienyl and Phenyl Rings”
Cryst. Growth Des. 16 (2016) 714-721
DOI: 10.1021/acs.cgd.5b01273 - E. Al-Naamani, M. Ide, A. Gopal, and A. Saeki, “Insight into the energy loss in organic solar cells based on benzotrithiophene copolymers: A dark current analysis at low temperature”
Jpn. J. Appl. Phys. 55 (2016) 022303/1-4
DOI: 10.7567/JJAP.55.022303 - H. Nishimura, N. Ishida, A. Shimazaki, A. Wakamiya, A. Saeki, L. T. Scott, and Y. Murata, “Hole-Transporting Materials with a Two-Dimensionally Expanded π-System around an Azulene Core for Efficient Perovskite Solar Cells”
J. Am. Chem. Soc. 137 (2015) 15656-15659.
DOI: 10.1021/jacs.5b11008 - M. Ide, A. Saeki, Y. Koizumi, T. Koganezawa, and S. Seki, “Molecular engineering of benzothienoisoindigo copolymers allowing highly preferential face-on orientations”
J. Mater. Chem. A 3 (2015) 21578-21585.
DOI: 10.1039/c5ta05885f - E. Al-Naamani, M. Ide, A. Gopal, A. Saeki, I. Osaka, and S. Seki, “Study of Photoelectric Conversion in Benzotrithiophene-Based Conjugated Semiconducting Polymers”
J. Photopolym. Sci. Tech. 28 (2015) 605-610.
DOI: 10.2494/photopolymer.28.605 - T. Fukumatsu, A. Saeki, and S. Seki “Modulation and evaluation of the charge carrier mobility in a polymer alloy of polythiophene and an insulating matrix with an electron accepting molecule”
Polym. Chem. 6 (2015) 5860-5868.
DOI: 10.1039/C5PY00796H - Y. Shen, A. Saeki, S. Seki, J.-O Lee, J. Aimi, and T. Nakanishi “Exfoliation of Graphene and Assembly Formation with Alkylated-C60: A Nanocarbon Hybrid towards Photo-Energy Conversion Electrode Devices”
Adv. Opt. Mater. 3 (2015) 925-930.
DOI: 10.1002/adom.201400619 - S. Yoshikawa, A. Saeki, M. Saito, I. Osaka, and S. Seki, “On the role of local charge carrier mobility in the charge separation mechanism of organic photovoltaics”
Phys. Chem. Chem. Phys. 17 (2015) 17778-17784.
DOI: 10.1039/C5CP01604E - Y. Noguchi, A. Saeki, T. Fujiwara, S. Yamanaka, M. Kumano, T. Sakurai, N. Matsuyama, M. Nakano, N. Hirao, Y. Ohishi, and S. Seki, “Pressure Modulation of Backbone Conformation and Intermolecular Distance of Conjugated Polymers Toward Understanding the Dynamism of π-Figuration of their Conjugated System”
J. Phys. Chem. B 119 (2015) 7219-7230.
DOI: 10.1021/jp5100389 - T. Mikie, A. Saeki, N. Ikuma, K. Kokubo, and S. Seki, “Hetero Bis-Addition of Spiro-Acetalized or Cyclohexanone Ring to 58π Fullerene Impacts Solubility and Mobility Balance in Polymer Solar Cells”
ACS Appl. Mater. Interfaces 7 (2015) 12894-12902.
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Macromolecules 45 (2012) 2709-2719.
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Int. J. Spectroscopy 2012 (2012) 983523/1-7.
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Jpn.J. Appl. Phys. 51 (2012) 045201/1-4.
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Org. Lett.14 (2012) 866–869.
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J. Am. Chem. Soc. 134 (2012) 2524−2527.
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Cryst. Growth Des. 11 (2011) 5488-5497.
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Science 334 (2011) 340-343.
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Chem. Sci. 2 (2011) 2243-2250.
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Chem. Mater. 23 (2011) 4094–4097.
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J. Phys. Chem. Lett. 2 (2011) 2549–2554.
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J. Phys. Chem. A 115 (2011) 10166–10173.
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J. Am. Chem. Soc. 133 (2011) 14510–14513.
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Adv. Energy Mater. 1 (2011) 661–669.
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Chem. Commun. 47 (2011) 6816-6818.
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Macromolecules 44 (2011) 3416–3424.
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Chem. – Eur. J. 17 (2011) 4750–4758.
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J. Am. Chem. Soc. 133 (2011) 6537–6540.
DOI: 10.1021/ja201272t - T. Okamoto, K. Nakahara, A. Saeki, S. Seki, J. H. Oh, H. B. Akkerman, Z. Bao, and Y. Matsuo, “Aryl−Perfluoroaryl Substituted Tetracene: Induction of Face-to-Face π−π Stacking and Enhancement of Charge Carrier Properties”,
Chem. Mater. 23 (2011) 1646–1649.
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Angew. Chem. Int. Ed. 50 (2011) 1289–1293.
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Dalton Trans. 40 (2011) 2218–2224.
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Phys. Chem. Chem. Phys. 13 (2011) 4830-4834.
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Dalton Trans. 39 (2010) 9314–9320.
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Adv. Funct. Mater. 20 (2010) 3941–3947.
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Chem. Commun. 46 (2010) 8752–8754.
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Jpn. J. Appl. Phys. 49 (2010) 096504/1-6.
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J. Phys. Chem. A 114 (2010) 8069–8074.
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Chem. –Asian J.5 (2010) 1566-1572.
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J. Am. Chem. Soc.132 (2010) 8866-8867.
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J. Am. Chem. Soc. 132 (2010) 6628-6629.
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J. Chem. Phys.132 (2010) 134509/1-134509/7.
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Adv. Mater. 22 (2010) 829-832.
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Jpn. J. Appl. Phys. 48 (2009) 06FC05/1-06FC05/4.
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J. Am. Chem. Soc. 131 (2009) 18046-18047.
DOI: 10.1021/ja908783f - R. Charvet, S. Acharya, J. P. Hill, M. Akada, M. Liao, S. Seki, Y. Honsho, A. Saeki, and K. Ariga, “Block-Copolymer-Nanowires with Nanosized Domain Segregation and High Charge Mobilities as Stacked p/n Heterojunction Arrays for Repeatable Photocurrent Switching”
J. Am. Chem. Soc. 131 (2009) 18030-18031.
DOI: 10.1021/ja907414z - Y. Yamamoto, G. Zhang, W. Jin, T. Fukushima, N. Ishii, A. Saeki, S. Seki, S. Tagawa, T. Minari, K. Tsukagoshi, and T. Aida, “Ambipolar-transporting coaxial nanotubes with a tailored molecular graphene–fullerene heterojunction”
Proc. Natl. Acad. Sci. 106 (2009) 21051-21056.
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J. Am. Chem. Soc. 131 (2009) 17722-17723.
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J. Phys. Chem. C 113 (2009) 17189-17193.
DOI: 10.1021/jp9077322 - A. Saeki, T. Kozawa, and S. Tagawa, “Origin of frequency-dependent line edge roughness: Monte Carlo and fast Fourier-transform studies”
Appl. Phys. Lett. 95 (2009) 103106/1-3.
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Chem. Lett. 38 (2009) 888-889.
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Synth. Met. 159 (2009) 1800-1803.
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Jpn. J. Appl. Phys. 48 (2009) 06FC09-1 - 06FC09-3.
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Appl. Phys. Express 2 (2009) 075006/1-3.
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Jpn. J. Appl. Phys. 48 (2009) 056508/1-4.
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Chem. Asian J. 4 (2009) 876-880.
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J. Chem. Phys. 130 (2009) 204907/1-6.
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J. Am. Chem. Soc. 131 (2009) 7287-7292.
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Chem. Commun. (2009) 3119-3121.
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Synth. Met. 159 (2009) 843-846.
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Synth. Met. 159 (2009) 797-801.
DOI: 10.1016/j.synthmet.2009.01.005 - T. Amaya, S. Seki, T. Moriuchi, K. Nakamoto, T. Nakata, H. Sakane, A. Saeki, S. Tagawa, and T. Hirao, “Anisotropic Electron Transport Properties in Sumanene Crystal”,
J. Am. Chem. Soc. 131 (2009) 408-409.
DOI: 10.1021/ja805997v - A. Saeki, S. Seki, N. Satoh, K. Yamamoto, and S. Tagawa, “Long-Lived Hole Stabilized at a Triphenylamine Core and Shielded by Rigid Phenylazomethine Dendrons: A Pulse Radiolysis Study”,
J. Phys. Chem. B 112 (2008) 15540-15545.
DOI: 10.1021/jp805266v - T. Sakurai, K. Shi, H. Sato, K. Tashiro, A. Osuka, A. Saeki, S. Seki, S. Tagawa, S. Sasaki, H. Masunaga, K. Osaka, M. Takata, and T. Aida, “Prominent Electron Transport Property Observed for Triply Fused Metalloporphyrin Dimer: Directed Columnar Liquid Crystalline Assembly by Amphiphilic Molecular Design”,
J. Am. Chem. Soc. 130 (2008) 13812-13813.
DOI: 10.1021/ja8030714 - A. Saeki, S. Ohsaki, S. Seki, and S. Tagawa, “Electrodeless Determination of Charge Carrier Mobility in Poly(3-hexylthiophene) Films Incorporating Perylenediimide as Photoconductivity Sensitizer and Spectroscopic Probe”,
J. Phys. Chem. C 112 (2008) 16643-16650.
DOI: 10.1021/jp8039252 - S. Seki, A. Saeki, A. Acharya, Y. Koizumi, S. Tagawa, and K. Mochida, “Intra-Molecular Mobility of Charge Carriers Along Oligogermane Backbones Studied by Flash Photolysis Time-Resolved Microwave Conductivity and Transient Optical Spectroscopy Techniques”,
Radiat. Phys. Chem. 77 (2008) 1323-1327.
DOI: 10.1016/j.radphyschem.2008.05.027 - A. Saeki, S. Ohsaki, Y. Koizumi, S. Seki, and S. Tagawa, “Electrode-Less Measurement of Conductivity Transients in Poly(n-alkylthiophene)s Induced by 193nm Photoexcitation”,
J. Photopolym. Sci. Technol. 21 (2008) 559-562.
DOI: 10.2494/photopolymer.21.559 - K. Natsuda, T. Kozawa, A. Saeki, S. Tagawa, T. Kai, and T. Shimokawa, “Study of the Reaction of Acid Generators with Epithermal and Thermalized Electrons”,
Jpn. J. Appl. Phys. 47 (2008) 4932-4935.
DOI: 10.1143/JJAP.47.4932 - A. Saeki, T. Kozawa, S. Tagawa, H. B. Cao, H. Deng, and M. J. Leeson, “Simulation of Amine Concentration Dependence on Line Edge Roughness After Development in Electron Beam Lithography”,
J. Appl. Phys. 104 (2008) 024303-1 - 024303-6.
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J. Am. Chem. Soc. 130 (2008) 8886-8887.
DOI: 10.1021/ja802757w - K. Nagashima, T. Yanagida, H. Tanaka, S. Seki, A. Saeki, S. Tagawa, and T. Kawai, “Effect of the Heterointerface on Transport Properties of in Situ Formed MgO/Titanate Heterostructured Nanowires”
J. Am. Chem. Soc. 130 (2008) 5378-5382.
DOI: 10.1021/ja800367a - I. Hisaki, Y. Sakamoto, H. Shigemitsu, N. Tohnai, M. Miyata, S. Seki, A. Saeki, and S. Tagawa, “Superstructure-Dependent Optical and Electrical Properties of an Unusual Face-to-Face, π-Stacked, One-Dimensional Assembly of Dehydrobenzo[12]annulene in the Crystalline State”
Chem. Eur. J. 14 (2008) 4178-4187.
DOI: 10.1002/chem.200800228 - Y. Umemoto, Y. Ie, A. Saeki, S. Seki, S. Tagawa, and Y. Aso, “Electronegative Oligothiophenes Fully Annelated with Hexafluorocyclopentene: Synthesis, Properties, and Intrinsic Electron Mobility”
Org. Lett. 10 (2008) 1095-1098.
DOI: 10.1021/ol703016g - A. Saeki, S. Seki, T. Takenobu, Y. Iwasa, and S. Tagawa, “Mobility and Dynamics of Charge Carriers in Rubrene Single Crystals Studied by Flash-Photolysis Microwave Conductivity and Optical Spectroscopy”,
Adv. Mater. 20 (2008) 920-923.
DOI: 10.1002/adma.200702463 - T. Kozawa, A. Saeki, and S. Tagawa, “Point Spread Function for the Calculation of Acid Distribution in Chemically Amplified Resists for Extreme Ultraviolet Lithography”,
Appl. Phys. Express 1 (2008) 027001-027003.
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Nanotechnology19 (2008) 015705-015709.
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Chem. Eur. J. 13 (2007) 10182-10193.
DOI: 10.1002/chem.200700446 - H. Yamamoto, T. Kozawa, A. Saeki, K. Okamoto, S. Tagawa, K. Ohmori, M. Sato, and H. Komano, “Effect of Acid Diffusion and Polymer Structure on Line Edge Roughness”,
Jpn. J. Appl. Phys. 46 (2007) 6187-6190.
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J. Micro/Nanolith. MEMS MOEMS 6 (2007) 043004/1-6.
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J. Am. Chem. Soc. 129 (2007) 9276-9277.
DOI: 10.1021/ja073577q - Y. Koizumi, S. Seki, K. Okamoto, A. Saeki, and S. Tagawa, “Radiation Induced One-Step One-pod Polymerization of Functional Conjugated Molecules”,
J. Photopolym. Sci. Technol. 20 (2007) 97-99.
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Radiat. Phys. Chem. 76 (2007) 1337-1341.
DOI: 10.1016/j.radphyschem.2007.02.027 - K. Okamoto, T. Kozawa, A. Saeki, Y. Yoshida, and S. Tagawa, “Subpicosecond Pulse Radiolysis in Liquid Methyl-Substituted Benzene Derivatives”,
Radiat. Phys. Chem. 76 (2007) 818-826.
DOI: 10.1016/j.radphyschem.2006.06.001 - A. Saeki, T. Kozawa, Y. Ohnishi, and S. Tagawa, “Reactivity between Biphenyl and Precursor of Solvated Electrons in Tetrahydrofuran Measured by Picosecond Pulse Radiolysis in Near-Ultraviolet, Visible, and Infrared”,
J. Phys. Chem. A 111 (2007) 1229-1235.
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J. Photochem. Photobiol. A 186 (2007) 158-165.
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Jpn. J. Appl. Phys. 46 (2007) 407-411.
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Science 314 (2006) 1761-1764.
DOI: 10.1126/science.1134441 - A. Saeki, T. Kozawa, S. Tagawa, and H. B. Cao, “Correlation between Proton Dynamics and Line Edge Roughness in Chemically Amplified Resist for Post-Optical Lithography”,
J. Vac. Sci. Tehcnol. B 24 (2006) 3066-3072.
DOI: 10.1116/1.2393250 - T. Kozawa, T. Shigaki, K. Okamoto, A.Saeki, S. Tagawa, T. Kai, and T. Shimokawa, “Analysis of Acid Yield Generated in Chemically Amplified Electron Beam Resist”,
J. Vac. Sci. Technol. B 24 (2006) 3055-3060.
DOI: 10.1116/1.2366656 - T. Kozawa, H. Yamamoto, A. Saeki, and S. Tagawa, “Effects of Low Energy Electrons on Pattern Formation in Chemically Amplified Resist”,
J. Photopolym. Sci. Technol. 19 (2006) 361-366.
DOI: 10.2494/photopolymer.19.361 [ch0] - H. Yamamoto, T. Kozawa, K. Okamoto, A. Saeki, S. Tagawa, T. Ando, M. Sato, and H. Komano, “Reaction mechanism of fluorinated chemically amplified resists”,
J. Vac. Sci. Technol. B 24 (2006) 1833-1836.
DOI: 10.1116/1.2214711 [ch0] - A. Saeki, S. Seki, and S. Tagawa, “Electrodeless Measurement of Charge Carrier Mobility in Pentacene by Microwave and Optical Spectroscopy Techniques”,
J. Appl. Phys.100 (2006) 023703-023708.
DOI: 10.1063/1.22146 - Y. Yamamoto, T. Fukushima, W. Jin, A. Kosaka, T. Hara, T. Nakamura, A. Saeki, S. Seki, S. Tagawa, and T. Aida, “A Glass Hook Allows Fishing of Hexa-peri-hexabenzocoronene Graphitic Nanotubes: Fabrication of a Macroscopic Fiber with Anisotropic Electrical Conduction”,
Adv. Mater. 18 (2006) 1297-1300.
DOI: 10.1002/adma.200502116 - S. Fratiloiu, F. C. Grozema, Y. Koizumi, S. Seki, A. Saeki, S. Tagawa, S. P. Dudek, and L. D. A. Siebbeles, “Electronic Structure and Optical Properties of Charged Oligofluorenes Studied by VIS/NIR Spectroscopy and Time-Dependent Density Functional Theory”,
J. Phys .Chem. B 110 (2006) 5984-5993.
DOI: 10.1021/jp055785f - A. Acharya, S. Seki, A. Saeki, and S. Tagawa, “Photoconductivity in Fullerene-Doped Polysilane Thin Films”,
Synth. Met. 156 (2006) 293-297.
DOI: 10.1016/j.synthmet.2005.12.004 - A. Saeki, S. Seki, T. Sunagawa, K. Ushida, and S. Tagawa, “Charge-Carrier Dynamics in Polythiophene Films Studied by In-situ Measurement of Flash-Photolysis Time-Resolved Microwave Conductivity (FP-TRMC) and Transient Optical Spectroscopy (TOS)”,
Phil. Mag. 86 (2006) 1261-1276.
DOI: 10.1080/14786430500380159 - A. Saeki, T. Kozawa, and S. Tagawa, “Picosecond Pulse Radiolysis using Femtosecond White Light with a High S/N Spectrum Acquisition System in One Beam Shot”,
Nucl. Instrum. Meth. A 556 (2006) 391-396.
DOI: 10.1016/j.nima.2005.10.068 - A. Saeki, T. Kozawa, S. Tagawa, and H. B Cao, “Line Edge Roughness of a Latent Image in Post-Optical Lithography”,
Nanotechnology 17 (2006) 1543-1546.
DOI: 10.1088/0957-4484/17/6/001 - R. Yamagami, K. Kobayashi, A. Saeki, S. Seki, and S. Tagawa, “Photogenerated Hole Mobility in DNA Measured by Time-Resolved Microwave Conductivity”,
J. Am. Chem .Soc.128 (2006) 2212-2213.
DOI: 10.1021/ja058057e - A. Saeki, T. Kozawa, Y. Yoshida, and S. Tagawa, “Multi Spur Effect on Decay Kinetics of Geminate Ion Recombination using Monte Carlo Technique”,
Nucl. Instrum. Meth. B 234 (2005) 285-290.
DOI: 10.1016/j.nimb.2005.02.002 - A. Saeki, T. Kozawa, S. Kashiwagi, K. Okamoto, G. Isoyama, Y. Yoshida, and S. Tagawa, “Synchronization of Femtosecond UV-IR Laser with Electron Beam for Pulse Radiolysis Studies”,
Nucl. Instrum. Meth. A 546 (2005) 627-633.
DOI: 10.1016/j.nima.2005.03.123 - T. Kozawa, K. Okamoto, A. Saeki, and S. Tagawa, “Effects of Dielectric Constant on Acid Generation in Chemically Amplified Resists for Post-Optical Lithography”,
Jpn. J. Appl. Phys. 44 (2005) 3908-3912.
DOI: 10.1143/JJAP.44.3908 - T. Kozawa, H. Yamamoto, A. Saeki, and S. Tagawa, “Proton and Anion Distribution and Line Edge Roughness of Chemically Amplified Electron Beam Resist”,
J. Vac. Sci. Technol. B 23 (2005) 2716-2720.
DOI: 10.1116/1.2131875 - Y. Doi, A. Saeki, Y. Koizumi, S. Seki, K. Okamoto, T. Kozawa, and S. Tagawa, “Nanopatterning of Polyfluorene Derivative using Electron-Beam Lithography”,
J. Vac. Sci. Technol. B 23 (2005) 2051-2055.
DOI: 10.1116/1.2050655 - A. Acharya, S. Seki, Y. Koizumi, A. Saeki, and S. Tagawa, “Photogeneration of Charge Carriers and Their Transport Properties in Poly[bis(p-n-butylphenyl)silane]”,
J. Phys .Chem. B 109 (2005) 20174-20179.
DOI: 10.1021/jp053300h - A. Saeki, S. Seki, Y. Koizumi, T. Sunagawa, K. Ushida, and S. Tagawa, “Increase in the Mobility of Photogenerated Positive Charge Carriers in Polythiophene”,
J. Phys .Chem. B 109 (2005) 10015-10019.
DOI: 10.1021/jp0442145 - A. Acharya, S. Seki, A. Saeki, Y. Koizumi, and S. Tagawa, “Study of Transport Properties in Fullerene-Doped Polysilane Films using Flash Photolysis Time-Resolved Microwave Technique”,
Chem. Phys. Lett. 404 (2005) 356-360.
DOI: 10.1016/j.cplett.2005.02.003 - S. Seki, A. Acharya, Y. Koizumi, A. Saeki, S. Tagawa, and K. Mochida, “Mobilities of Charge Carriers in Dendrite and Linear Oligogermanes by Flash Photolysis Time-resolved Microwave Conductivity Technique”,
Chem. Lett. 34 (2005) 1690-1691.
DOI: 10.1246/cl.2005.1690 - A. Acharya, Y. Koizumi, S. Seki, A. Saeki, S. Tagawa, Y. Ie, and Y. Aso, “Effect of Substituents on Charge Carrier Dynamics in Thiophene Oligomers”,
J. Photochem. Photobiol. A 173 (2005) 161-168.
DOI: 10.1016/j.jphotochem.2005.01.016 - T. Kozawa, H. Yamamoto, A. Nakano, A. Saeki, K. Okamoto, and S. Tagawa, "Electron Dynamics in Chemically Amplified Resists",
J. Photopolym. Sci .Technol. 17 (2004) 449-452.
DOI: 10.2494/photopolymer.17.449 - S. Seki, S. Tsukuda, K. Maeda, Y. Matsui, A. Saeki, and S. Tagawa, “Inhomogeneous Distribution of Crosslinks in Ion Tracks in Polystylene and Polysilanes”,
Phys. Rev. B 70 (2004) 144203-144210.
DOI: 10.1103/PhysRevB.70.144203 - S. Tsukuda, S. Seki, A. Saeki, T. Kozawa, S. Tagawa, M. Sugimoto, A. Idesaki, and S. Tanaka, “Precise Control of Nanowire Formation Based on Polysilane for Photoelectronic Device Application”,
Jpn. J. Appl. Phys. 43 (2004) 3810-3814.
DOI: 10.1143/JJAP.43.3810 - T. Kozawa, A. Saeki, and S. Tagawa, “Modelling and Simulation of Chemically Amplified Electron Beam, X-ray and EUV Resist Processes”,
J. Vac. Sci. Technol. B 22 (2004) 3489-3492.
DOI: 10.1116/1.1823435 - A. Saeki, T. Kozawa, Y. Yoshida, and S. Tagawa, “Adjacent Effect on Positive Charge Transfer from Radical Cation of n-Dodecane to Scavenger Studied by Picosecond Pulse Radiolysis, Statistical Model, and Monte Carlo Simulation”,
J. Phys .Chem. A 108 (2004) 1475-1481.
DOI: 10.1021/jp036372m - Y. Koizumi, S. Seki, A. Acharya, A. Saeki, and S. Tagawa, “Delocalization of Positive and Negative Charge Carriers on Oligo- and Poly-fluorenes Studied by Low-Temperature Matrix Isolation Technique”,
Chem. Lett. 33 (2004) 1290-1291.
DOI: 10.1246/cl.2004.1290 - T. Kozawa, A. Saeki, A. Nakano, Y. Yoshida, and S. Tagawa, “Relation between spatial resolution and reaction mechanism of chemically amplified resists for electron beam lithography”,
J. Vac. Sci. Technol. B 21 (2003) 3149-3152.
DOI: 10.1116/1.1619959 - T. Kawaguchi, S. Seki, K. Okamoto, A. Saeki, Y. Yoshida, and S. Tagawa, “Pulse Radiolysis Study of Radical Cations of Polysilanes”,
Chem. Phys. Lett. 374 (2003) 353-357.
DOI: 10.1016/S0009-2614(03)00740-1 [ch0] - K. Okamoto, A. Saeki, T. Kozawa, Y. Yoshida, and S. Tagawa, “Subpicosecond Pulse Radiolysis Study of Geminate Ion Recombination in Liquid Benzene”,
Chem. Lett. 32 (2003) 834-835.
DOI: 10.1246/cl.2003.834 - A. Saeki, T. Kozawa, Y. Yoshida, and S. Tagawa, “Study on Radiation-Induced Reaction in Microscopic Region for Basic Understanding of Electron Beam Patterning in Lithographic Process (II) —Relation between Resist Space Resolution and Space Distribution of Ionic Species—“,
Jpn. J. Appl. Phys. 41 (2002) 4213-4216.
DOI: 10.1143/JJAP.41.4213 - T. Kozawa, A. Saeki, Y. Yoshida, and S. Tagawa, "Study on Radiation-Induced Reaction in Microscopic Region for Basic Understanding of Electron Beam Patterning in Lithographic Process (I) — Development of Subpicosecond Pulse Radiolysis and Relation between Space Resolution and Radiation-Induced Reactions of Onium Salt — ",
Jpn. J. Appl. Phys. 41 (2002) 4208-4212.
DOI: 10.1143/JJAP.41.4208 - A. Saeki, T. Kozawa, Y. Yoshida, and S. Tagawa, “Study on Geminate Ion Recombination in Liquid Dodecane using Pico- and Subpicosecond Pulse Radiolysis”,
Radiat. Phys. Chem. 60 (2001) 319-322.
DOI: 10.1016/S0969-806X(00)00369-8 - Y. Yoshida, Y. Mizutani, T. Kozawa, A. Saeki, S. Seki, S. Tagawa, and K. Ushida, “Development of Laser-Synchronized Picosecond Pulse Radiolysis System”,
Radiat. Phys. Chem. 60 (2001) 313-318.
DOI: 10.1016/S0969-806X(00)00368-6
- A. Saeki, K. Kranthiraja, “A high throughput molecular screening for organic electronics via machine learning: present status and perspective”
Jpn. J. Appl. Phys. 59 (2020) SD0801/1-10.
DOI: 10.7567/1347-4065/ab4f39 - S. Seki, A. Saeki, T. Sakurai, and D. Sakamaki, “Charge carrier mobility in organic molecular materials probed by electromagnetic waves”
Phys. Chem. Chem. Phys. 16 (2014) 11093-11113.
DOI: 10.1039/c4cp00473f - A. Saeki, Y. Koizumi, T. Aida, and S. Seki, “Comprehensive Approach to Intrinsic Charge Carrier Mobility in Conjugated Organic Molecules, Macromolecules, and Supramolecular Architectures”
Acc. Chem. Res. 45 (2012) 1193-1202.
DOI: 10.1021/ar200283b - A. Saeki and S. Tagawa, “Nanometer-Scale Dynamics of Charges Generated by Radiations in Condensed Matter”,
Pure Appl. Chem. 81 (2009) 45-60.
DOI: 10.1351/PAC-CON-08-09-02
- 佐伯昭紀, “機械学習による有機エレクトロニクス材料の高スループット探索”
応用物理学会 有機分子・バイオエレクトロニクス分科会会誌 30 (2019) 210-215. - 佐伯昭紀, “機械学習による高分子フラーレン太陽電池材料の探索”
錯体化学会誌 74 (2019) 56-59. - 佐伯昭紀, “電磁波分光を基盤としたエネルギー変換材料の研究”
生産と技術 71 (2019) 52-55.
生産技術振興協会 - 佐伯昭紀, “高分子太陽電池のマテリアルズ・インフォマティクス”
光触媒 58 (2019) 18-21. - 佐伯昭紀, “超高速スクリーニング法を駆使したエネルギー変換材料の探索”
化学工業 69 (2018) 59-64. - 佐伯昭紀, “マイクロ波分光を駆使したエネルギー変換材料の探索”
応用物理 86 (2017) 977-981.
応用物理学会 - 佐伯昭紀, “有機薄膜太陽電池のデバイスレス評価”
高分子, 66, (2017) 354-355
高分子学会 - 佐伯昭紀, “高速スクリーニング法とデータ科学的統計手法によるペロブスカイト太陽電池材料の探索”
ペトロテック, 40, (2017) 359-365. - 佐伯昭紀, “周波数変調時間分解複素光電気伝導度法の開発とペロブスカイト太陽電池への応用”
生産と技術, 68, (2016) 21-26.
生産技術振興協会 - 佐伯昭紀, “ペロブスカイト太陽電池の電荷キャリア移動度と輸送過程”
ファインケミカル, 44, (2015) 34-41. - 佐伯昭紀, “デバイスレス光伝導度評価法による有機薄膜太陽電池材料の開発”
生産と技術, 66, (2014) 92-95.
生産技術振興協会 - 佐伯昭紀, “白色光パルス・マイクロ波伝導度法による有機薄膜太陽電池性能の直接評価”
高分子論文集, 70, (2013) 370-385.
J-Stage - 佐伯昭紀, “自己組織化材料のミクロ・マクロ光電気物性評価”
機能材料, 33, (2013) 12-19. - 佐伯昭紀, 小泉美子, 関修平 “マイクロ波法による自己組織化材料中の局所的電荷輸送特性”
化学工業, 62, (2011) 494-502. - 関修平, 佐伯昭紀, 本庄義人 “マイクロ波空洞吸収法による有機固体結晶中の電荷輸送”
化学工業, 60, (2009) 213-219. - 関修平, 福松嵩博, 佐伯昭紀, “共役高分子骨格の電荷輸送特性”
高分子論文集, 68, (2011) 53-61. - 関修平,佐伯昭紀, “変調された電場による電極を用いない有機材料中の伝導度測定の原理と応用”
有機合成化学協会誌 69 (2011) 38-44. - 佐伯昭紀, 関修平, 田川精一, “マイクロ波による電極レス電荷キャリア移動度測定”
放射線化学, 81 (2006) 29-39.
- A. Saeki, “Fundamental Optoelectronic Process in Polymer:Fullerene Heterojunctions”
Light-Active Functional Organic Materials, Jenny Stanford Publishing (2019) Ch.5, 93-113
Editors: H. Yamada and S. Yagai.
ISBN 978-981-4800-15-0 (Total 224 pages). - A. Saeki, S. Seki, “Unveiling Charge Carrier Transport in π-Conjugated Molecular Wire on Micro and Macroscopic Scales”
Chemical Science of π-Electron Systems, Springer (2015) Ch. 36, 605-620
Editors: T. Akasaka, A. Osuka, S. Fukuzumi, H. Kandori, and Y. Aso).
ISBN 978-4-431-55356-4 (Total 777 pages). - S. Seki, T. Sakurai, M. Omichi, A. Saeki, and D. Sakamaki, “High-Energy Charged Particles: Their Chemistry and Use as Versatile Tools for Nanofabrication”
Springer Briefs in Molecular Science, Springer (2015).
ISBN 98-4-431-55683-1 (Total 74 pages). - A. Saeki, S. Seki, K. Kobayashi, and S. Tagawa “Nanoscale Charge Dynamics and Nanostructure Formation in Polymers”,
Charged Particle and Photon Interactions with Matter, -Recent Advances, Applications, and Interfaces CRS Press (2011) 671-710.
Editors: Y. Hatano, Y. Katsumura, and A. Mozumder.
ISBN 978-1-4398-1177-1. (Total 1064 pages) - J. Belloni, R. A. Crowell, Y. Katsumura, M. Lin, J.-L. Marignier, M. Mostafavi, Y. Muroya, A. Saeki, S. Tagawa, Y. Yoshida, V. De Waele, and J. F. Wishart, “Ultrafast Pulse Radiolysis Methods” in Ch. 5,
Recent Trends in Radiation Chemistry World Scientific Pub Co Inc (2010) 121-160. .
Editors: J. F. Wishart and B. S. M. Rao.
ISBN: 978-9814282079 (total 636 pages) - Y. Yoshida, A. Saeki, T. Kozawa, J. Yang, and S. Tagawa, “Subpicosecond Pulse Radiolysis Study on Geminate Ion Recombination Process in n-Dodecane”,
Ultrafast Phenomena, 14 (2005) 479-481.
- 佐伯昭紀 “マイクロ波分光法によるペロブスカイト太陽電池の光電気物性”
ペロブスカイト太陽電池の開発最前線, CMC出版 (2019) 118-125.
ISBN 978-4-7813-1427-3 (Total 165 pages) - 佐伯昭紀 “高分子フラーレン太陽電池のマテリアルズ・インフォマティクス”
マテリアルズ・インフォマティクスによる材料開発と活用集, 技術情報協会 (2019) 354-358.
ISBN 978-4-86104-732-9 (Total 463 pages) - 佐伯昭紀 “有機半導体”
マテリアルズ・インフォマティクス, 情報機構 (2018) 145-153.
ISBN 978-4-86502-147-9 (Total 237 pages) - >佐伯昭紀 “有機無機ハイブリッド・ペロブスカイト太陽電池の光電気特性評価”
元素ブロック材料の創出と応用展開, CMC出版(2016) 107-115, 中條善樹監修.
ISBN 978-4-7813-1160-9 (Total 265 pages) - 佐伯昭紀 “マイクロ波を用いたデバイスレス有機太陽電池評価法”
太陽光と光電変換機能―異分野融合から生まれる次世代太陽電池―, CMC出版(2016) 96-103, 早瀬修二監修.
ISBN 978-4-7813-1137-1 (Total 307 pages) - 佐伯昭紀 “マイクロ波伝導度測定を用いた自己組織化半導体材料の評価”
自己組織化マテリアルのフロンティア, フロンティア出版(2015) 96-103.
ISBN 978-4-902410-26-6 (Total 336 pages) - 松浦和則, 角五彰, 岸村顕広, 佐伯昭紀, 竹岡敬和, 内藤昌信, 中西尚志, 舟橋正浩, 矢貝史樹,
“有機機能材料‐基礎から応用まで（エキスパート応用化学テキスト）” 講談社 (2014).
ISBN-10: 4061568027 (Total 256 pages)
- 佐伯昭紀, 関修平 “ナノ～マイクロスケールでのπ分子ワイヤーの電荷輸送特性評価”,
高次π空間の創発と機能開発, CMC出版(2013) 151-157.
ISBN 978-4-7813-0758-9 (Total 245 pages) - 佐伯昭紀, 関修平 “マイクロ波法によるデバイスレス有機薄膜太陽電池評価”,
有機薄膜太陽電池の研究最前線, CMC出版(2012) 219-226.
ISBN 978-4-7813-0600-1 (Total 257 pages) - 関修平, 麻野敦資, 本庄義人, 佐伯昭紀 “有機デバイスの非接触迅速診断技術”,
プリンテッドエレクトロニクス技術最前線, CMC出版 (2010) 72-78.
ISBN 978-4-7813-0234-8 (Total 294 pages) - 関修平, 佐伯昭紀 “マイクロ波による共役ポリマー分子鎖の１次元伝導特性の電極レス評価”,
次世代共役ポリマーの超階層制御と革新機能, CMC出版(2009) 397-406.
ISBN 978-4-7813-0073-3 (Total 445 pages) - 関修平, 佐伯昭紀 “マイクロ波による共役分子の分子内電荷移動度の定量”
有機薄膜太陽電池の最新技術II, CMC出版 (2009) 38-57.
ISBN 978-4-7813-0075-7 (Total 316 pages) - 佐伯昭紀, “ジェミネート再結合とオンサガー理論”,
放射線化学のすすめ, 日本放射線化学会編, 学会出版センター (2006) 256-258.
ISBN4-7622-3050-2. (Total 268 pages)
ACS Energy Lett. 4(7) (2019) Supplementary Cover
Layered oxyhalides of Bi4TaO8Cl and PbBiO2Cl are investigated by time-resolved microwave conductivity, X-ray photoelectron spectroscopy, and scanning electron microscopy. This work demonstrates that the product of the transient photoconductivity maximum and half lifetime correlates well with the O2-evolution rates, which leads to the 3-fold improvement of photocatalytic activity relative to the reported value.
Chem. Mater. 31(9) (2019) Supplementary Cover
A series of double-layered perovskite oxychlorides are systematically synthesized for application of photocatalytic water splitting. On the basis of their unique crystal and band structures, their properties of band alignment, photoconductivity, and photocatalysis of water oxidation can be tuned by changing constituent cations.
J. Phys. Chem. C 123(8) (2019)Cover
Boron dipyrromethene (BODIPY) microcrystals exhibit different emission properties depending on their growth process. Fluorescence microscopy images of crystalline BODIPY microrods. Depending on the details of the crystallization process, different emission wavelengths are observed, sometimes resulting in intriguing stripes of different colors in a single rod. This indicates crystalline polymorphism, resulting in microscopic regions of different band-gap energies.
Adv. Mater. 29(23), (2017) Backcover
Upon cooling and heating, organic–inorganic perovskite nanoparticles are reversibly decomposed and formed through the lower-critical-solution-temperature phenomenon. Akinori Saeki and co-workers demonstrate an aurora-like photoemissive object in article number 1700047, and reveal the roles of the involved chemicals (methylammonium cation, lead, halogen, and molecular additives). The cloud temperature is varied from ca. 30 to 80 °C by controlling the concentration, and multi-luminescent-color thermoresponsive solutions are achieved through compositional engineering of the halogen.
Polym. Chem. 6(32), (2015) Backcover
Non-contact electric conductivity measurement technique reveals the correlation between the charge carrier mobility and backbone conformation of polythiophene isolated or aggregated in insulating polymer matrices. Styrene-perylenediimide (PDI) copolymer systems provides versatile platforms to investigate 1-dimensional charge carrier mobility along the conjugated backbones of a variety of p-type polymers.
J. Mater. Chem. C 3(11), (2015) Backcover.
A series of novel phthalocyanine (Pc)-tethered block copolymers, Pc-poly(methyl methacrylate)-block-polystyrene (Pc-PMMA-b-PS), with various molecular weights (number average molecular weight mass = 41, 66, 86 kg mol−1), were prepared by atom transfer radical polymerization and click chemistry. The structurally related Pc-tethered homopolymer, Pc-PMMA was also synthesized for comparison. Pc-PMMA forms homogeneous polymer films containing π-assemblies of the terminal Pc groups, whereas Pc-PMMA-b-PS self-assembles into a cylindrical morphology in which the Pc units show π–π interactions inside the confined PMMA cylinders. Such polymer designs have potential applications in optoelectronic devices.
Adv.Funct.Mater.24(1), (2014) Frontispiece.
Towards a highly efficient organic photovoltaic, new donoracceptor-type copolymers are proposed by S. Seki and co-workers. The copolymers comprise benzobisthiazole as a weak donor rather than an acceptor. The molecular design and device tuning of BBTz-based copolymers coupled with thienopyrroledione and benzothiadiazole are reported on page 28, by means of a device-less evaluation of laser and Xe-flash time-resolved microwave conductivity.
Polym. Chem. 5(11) (2014) backcover
π-Conjugated alternating copolymers containing a tetramethylbithiophene unit show a strong tendency to form well-defined, sub- to several-micrometer-sized spheres. The twisted bithiophene unit inhibits interchain stacking and anisotropic crystal growth of these copolymers, leading to the formation of structurally isotropic spheres by means of a slow diffusion of a nonsolvent into a solution of the copolymers. These micrometer-sized spheres display extremely long photocarrier lifetimes ([similar]10−3 s) in comparison with cast films from the solutions of the polymers and those of the irregular aggregates (<10−6 s).
Polym. Chem.4(3) (2013) backcover
We synthesized a series of new low-band gap donor–acceptor copolymers containing 4,4′-bis(alkyl)-[6,6′-bithieno[3,2-b]pyrrolylidene]-5,5′(4H,4′H)-dione. This acceptor unit, so-called dithienoketopyrrole (DTKP), is an analogue of isoindigo, the phenyl rings of which are replaced by thiophenes. Donor moieties such as benzodithiophene, cyclopentadithiophene, fluorene, and dithienothiophene are polymerized with DTKP in an alternating fashion by Stille or Suzuki–Miyaura coupling methods. Exceedingly low-band gaps (Eg = 1.0–1.6 eV) were achieved in these copolymers through internal charge transfer interactions between the donor and acceptor moieties. The structural, photophysical, and electrochemical properties of the resultant copolymers were characterized, and field-effect transistor (FET) mobilities were measured.
Adv. Energy Mater. 1(4) (2011) cover
Akinori Saeki and coworkers investigate the correlation between organic photovoltaic cells and dynamics of transient photoconductivity by flash-photolysis time-resolved microwave conductivity. Blend ratios, annealing, impurities, and degradation effects in bulk heterojunction films consisting of P3HT and PCBM are examined, demonstrating a facile screening method to survey the potential of optoelectronic materials.
Adv. Mater. 22(7) (2010) cover
The cover illustrates self-assembly of a hexa-peri-hexabenzocoronene amphiphile to give a graphitic nanotube, formed through helical rolling-up of a bilayer tape consisting of bilaterally coupled columns of π-stacked hexabenzocoronene units. The graphitic layer inside the wall offers a charge-transport pathway. Aida and co-workers report on p. 1297 on the fabrication of a macroscopic fiber by “fishing” the nanotubes with a glass hook. In the fiber, most of the nanotubes are oriented unidirectionally along the fiber axis, thereby allowing an anisotropic electrical conduction upon doping with iodine.
J. Am. Chem. Soc. 131(49)(2009) cover
Triphenylene derivatives bearing appropriate paraffinic side chains with imidazolium ion-based ionic liquid pendants form, over a wide temperature range, a bicontinuous cubic liquid crystalline mesophase consisting of columnar arrays of π-stacked triphenylene units. Upon excitation with a laser flash, these liquid crystals show excellent carrier mobility and have the potential for novel charge transport materials.
Chem.-Eur.J. 14(14) (2008)cover
A face-to-face π-stacked one-dimensional (1D) assembly of π-conjugated discotic molecules is a promising superstructure for organic semiconductor materials. In their article, I. Hisaki, M. Miyata et al. on page 4178. describe the construction and the optical and electrical properties of a π-stacked 1D assembly composed of a dehydrobenzo[12]annulene derivative in the crystalline state. Compared with the herringbone-like assembly of the parent annulene, the 1D assembly revealed significantly-anisotropic charge mobility along the columnar axis.
Adv. Mater. 20(5) (2008) inside-cover
Electrodeless photoconductivity measurements of a rubrene single crystal are performed by microwave conductivity and transient optical spectroscopy, demonstrating anisotropy and ambipolarity. From these comprehensive studies, Akinori Saeki, Seiichi Tagawa, and co-workers discuss on p. 920 the optoelectronic properties of rubrene single crystal in terms of charge recombination of holes and electrons, exciton–exciton annihilation, quantum efficiency of charge carrier generation, triplet contribution, and the extinction coefficients of ionic species accessed by pulse radiolysis.
Adv. Mater. 18(10) (2006) cover
The cover illustrates self-assembly of a hexa-peri-hexabenzocoronene amphiphile to give a graphitic nanotube, formed through helical rolling-up of a bilayer tape consisting of bilaterally coupled columns of π-stacked hexabenzocoronene units. The graphitic layer inside the wall offers a charge-transport pathway. Aida and co-workers report on p. 1297 on the fabrication of a macroscopic fiber by “fishing” the nanotubes with a glass hook. In the fiber, most of the nanotubes are oriented unidirectionally along the fiber axis, thereby allowing an anisotropic electrical conduction upon doping with iodine.
