Tomokazu Umeyama

ResearcherID ORCID

Publication Activity (10 Years)

Years Active: 2017-2024
Publications (10 Years): 14

Top Venues

Chemical science

ACS applied materials & interfaces

Accounts of chemical research

Chemistry (Weinheim an der Bergstrasse, Germany)

Kyoto University (PHD)

This page only lists publications with an associated author ORCID identifier.

Education History

Kyoto University Apr 01 2001 - Mar 31 2004

Japan

PHD :: Graduate School of Engineering

Publications

Akira Yamakata, Kosaku Kato, Takumi Urakami, Sota Tsujimura, Kasumi Murayama, Masahiro Higashi, Hirofumi Sato, Yasuhiro Kobori, Tomokazu Umeyama, Hiroshi Imahori
Boosting charge separation in organic photovoltaics: unveiling dipole moment variations in excited non-fullerene acceptor layers. Chemical science 15 (32) (2024)
Akira Yamakata, Kosaku Kato, Takumi Urakami, Sota Tsujimura, Kasumi Murayama, Masahiro Higashi, Hirofumi Sato, Yasuhiro Kobori, Tomokazu Umeyama, Hiroshi Imahori
Boosting charge separation in organic photovoltaics: unveiling dipole moment variations in excited non-fullerene acceptor layers. Chemical science 15 (32) (2024)
Tomokazu Umeyama, Daizu Mizutani, Yuki Ikeda, W Ryan Osterloh, Futa Yamamoto, Kosaku Kato, Akira Yamakata, Masahiro Higashi, Takumi Urakami, Hirofumi Sato, Hiroshi Imahori
An emissive charge-transfer excited-state at the well-defined hetero-nanostructure interface of an organic conjugated molecule and two-dimensional inorganic nanosheet. Chemical science 14 (42) (2023)
Tomokazu Umeyama, Tomoya Ohara, Yusuke Tsutsui, Shota Nakano, Shu Seki, Hiroshi Imahori
Noncovalent Functionalization of Few-Layered Antimonene with Fullerene Clusters and Photoinduced Charge Separation in the Composite. Chemistry (Weinheim an der Bergstrasse, Germany) 26 (29) (2020)
Mitsuhiko Morisue, Genki Saito, Daiki Sasada, Tomokazu Umeyama, Hiroshi Imahori, Koji Mitamura, Hiroyasu Masunaga, Taiki Hoshino, Shinichi Sakurai, Sono Sasaki
Glassy Porphyrin/C60 Composites: Morphological Engineering of C60 Fullerene with Liquefied Porphyrins. Langmuir : the ACS journal of surfaces and colloids 36 (45) (2020)
Tomokazu Umeyama, Kensho Igarashi, Daiki Sasada, Keiichi Ishida, Tomoyuki Koganezawa, Shunsuke Ohtani, Kazuo Tanaka, Hiroshi Imahori
Efficient Exciton Diffusion in Micrometer-Sized Domains of Nanographene-Based Nonfullerene Acceptors with Long Exciton Lifetimes in Blend Films with Conjugated Polymer. ACS applied materials & interfaces 12 (35) (2020)
Tomokazu Umeyama, Kensho Igarashi, Daiki Sasada, Yasunari Tamai, Keiichi Ishida, Tomoyuki Koganezawa, Shunsuke Ohtani, Kazuo Tanaka, Hideo Ohkita, Hiroshi Imahori
Efficient light-harvesting, energy migration, and charge transfer by nanographene-based nonfullerene small-molecule acceptors exhibiting unusually long excited-state lifetime in the film state. Chemical science 11 (12) (2020)
Tomokazu Umeyama, Yohei Okawada, Tomoya Ohara, Hiroshi Imahori
Spontaneous Complexation of Fullerene Aggregates on Nanodiamond Aggregates and Their Enhanced Photocurrent Generation. Chemistry, an Asian journal 14 (22) (2019)
Tomokazu Umeyama, Takuma Hanaoka, Hiroki Yamada, Yuki Namura, Satoshi Mizuno, Tomoya Ohara, Jinseok Baek, Jaehong Park, Yuta Takano, Kati Stranius, Nikolai V Tkachenko, Hiroshi Imahori
Exclusive occurrence of photoinduced energy transfer and switching of its direction by rectangular π-extension of nanographenes. Chemical science 10 (27) (2019)
Tomokazu Umeyama, Hiroshi Imahori
Isomer Effects of Fullerene Derivatives on Organic Photovoltaics and Perovskite Solar Cells. Accounts of chemical research 52 (8) (2019)
Hiroyuki Kanda, Naoyuki Shibayama, Abdullah Uzum, Tomokazu Umeyama, Hiroshi Imahori, Koji Ibi, Seigo Ito
Effect of Silicon Surface for Perovskite/Silicon Tandem Solar Cells: Flat or Textured? ACS applied materials & interfaces 10 (41) (2018)
Tomokazu Umeyama, Shogo Takahara, Sho Shibata, Kensho Igarashi, Tomohiro Higashino, Kenji Mishima, Koichi Yamashita, Hiroshi Imahori
cis -1 Isomers of tethered bismethano[70]fullerene as electron acceptors in organic photovoltaics. RSC advances 8 (33) (2018)
Koji Miki, Kenzo Saiki, Tomokazu Umeyama, Jinseok Baek, Takeru Noda, Hiroshi Imahori, Yuta Sato, Kazu Suenaga, Kouichi Ohe
Unique Tube-Ring Interactions: Complexation of Single-Walled Carbon Nanotubes with Cycloparaphenyleneacetylenes. Small (Weinheim an der Bergstrasse, Germany) 14 (26) (2018)
Hironobu Hayashi, Wataru Nihashi, Tomokazu Umeyama, Yoshihiro Matano, Shu Seki, Yo Shimizu, Hiroshi Imahori
Correction to "Segregated Donor-Acceptor Columns in Liquid Crystals That Exhibit Highly Efficient Ambipolar Charge Transport". Journal of the American Chemical Society 139 (39) (2017)

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Publication Activity (10 Years)

Top Topics

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Tomokazu Umeyama