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Chihaya Adachi

Chihaya Adachi

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Materials Science
Japan
2026

D-Index & Metrics

Materials Science

D-Index
147
Citations
104355
World Ranking
174
National Ranking
7

Research.com Recognitions

  • 2026 - Research.com Materials Science in Japan Leader Award
  • 2025 - Research.com Materials Science in Japan Leader Award
  • 2023 - Research.com Materials Science in Japan Leader Award
  • 2022 - Research.com Materials Science in Japan Leader Award
  • 2017 - Nishina Memorial Prize
  • 2014 - Society for Information Display Fellow

Overview

Chihaya Adachi is affiliated with Kyushu University in Japan and has contributed extensively to the fields of engineering and materials science. Their research primarily spans electrical and electronic engineering as well as materials chemistry, covering topics such as polymers and plastics, physical and theoretical chemistry, and organic chemistry.

The main topics in their work include:

  • Organic Light-Emitting Diodes Research
  • Luminescence and Fluorescent Materials
  • Organic Electronics and Photovoltaics
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Perovskite Materials and Applications
  • Conducting polymers and applications

Adachi has published frequently in several academic venues, including:

  • The Cambridge Structural Database
  • Advanced Optical Materials
  • Angewandte Chemie
  • Nature Communications
  • Angewandte Chemie International Edition

Notable recent papers authored or coauthored include:

  • "Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission," 2021, Nature Photonics
  • "Stable room-temperature continuous-wave lasing in quasi-2D perovskite films," 2020, Nature
  • "Fast spin-flip enables efficient and stable organic electroluminescence from charge-transfer states," 2020, Nature Photonics
  • "Nanosecond-time-scale delayed fluorescence molecule for deep-blue OLEDs with small efficiency rolloff," 2020, Nature Communications
  • "Detrimental Effect of Unreacted PbI2 on the Long-Term Stability of Perovskite Solar Cells," 2020, Advanced Materials

The frequent coauthors collaborating with Adachi include:

  • Masashi Mamada
  • Hajime Nakanotani
  • Youichi Tsuchiya
  • Chin-Yiu Chan
  • Toshinori Matsushima

Among the recognitions received, Adachi has been awarded the Nishina Memorial Prize in 2017 and was named a Society for Information Display Fellow in 2014.

Best Publications

  • Highly efficient organic light-emitting diodes from delayed fluorescence

    Hiroki Uoyama;Kenichi Goushi;Kenichi Goushi;Katsuyuki Shizu;Hiroko Nomura

  • Nearly 100% internal phosphorescence efficiency in an organic light emitting device

    Chihaya Adachi;Marc A. Baldo;Mark E. Thompson;Mark E. Thompson;Stephen R. Forrest

  • Highly phosphorescent bis-cyclometalated iridium complexes: synthesis, photophysical characterization, and use in organic light emitting diodes.

    Sergey Lamansky;Peter Djurovich;Drew Murphy;Feras Abdel-Razzaq

  • Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence

    Qisheng Zhang;Bo Li;Shuping Huang;Hiroko Nomura

  • Organic light-emitting diodes employing efficient reverse intersystem crossing for triplet-to-singlet state conversion

    Kenichi Goushi;Kou Yoshida;Keigo Sato;Chihaya Adachi

  • Transient analysis of organic electrophosphorescence. II. Transient analysis of triplet-triplet annihilation

    M. A. Baldo;C. Adachi;S. R. Forrest

  • Design of Efficient Thermally Activated Delayed Fluorescence Materials for Pure Blue Organic Light Emitting Diodes

    Qisheng Zhang;Jie Li;Katsuyuki Shizu;Shuping Huang

  • High-efficiency red electrophosphorescence devices

    Chihaya Adachi;Marc A. Baldo;Stephen R. Forrest;Sergey Lamansky

  • High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials

    Chihaya Adachi;Marc A. Baldo;Stephen R. Forrest;Mark E. Thompson

  • Highly efficient blue electroluminescence based on thermally activated delayed fluorescence.

    Shuzo Hirata;Yumi Sakai;Kensuke Masui;Hiroyuki Tanaka

  • Efficient up-conversion of triplet excitons into a singlet state and its application for organic light emitting diodes

    Ayataka Endo;Keigo Sato;Kazuaki Yoshimura;Takahiro Kai

  • Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials

    Chihaya Adachi;Raymond C. Kwong;Raymond C. Kwong;Peter Djurovich;Peter Djurovich;Vadim Adamovich;Vadim Adamovich

  • Organic electroluminescent device having a hole conductor as an emitting layer

    Chihaya Adachi;Tetsuo Tsutsui;Shogo Saito

  • High-efficiency organic light-emitting diodes with fluorescent emitters

    Hajime Nakanotani;Takahiro Higuchi;Taro Furukawa;Kensuke Masui

  • Organic long persistent luminescence

    Ryota Kabe;Chihaya Adachi;Chihaya Adachi

  • Blue light‐emitting organic electroluminescent devices

    Chihaya Adachi;Tetsuo Tsutsui;Shogo Saito

  • Thermally Activated Delayed Fluorescence from Sn4+–Porphyrin Complexes and Their Application to Organic Light Emitting Diodes — A Novel Mechanism for Electroluminescence

    Ayataka Endo;Mai Ogasawara;Atsushi Takahashi;Daisuke Yokoyama

  • 100% phosphorescence quantum efficiency of Ir(III) complexes in organic semiconductor films

    Yuichiro Kawamura;Kenichi Goushi;Jason Brooks;Julie J. Brown

  • Purely organic electroluminescent material realizing 100% conversion from electricity to light

    Hironori Kaji;Hajime Suzuki;Tatsuya Fukushima;Katsuyuki Shizu;Katsuyuki Shizu

  • Anthraquinone-Based Intramolecular Charge-Transfer Compounds: Computational Molecular Design, Thermally Activated Delayed Fluorescence, and Highly Efficient Red Electroluminescence

    Qisheng Zhang;Hirokazu Kuwabara;William J. Potscavage;Shuping Huang

Frequent Co-Authors

Toshinori Matsushima
Toshinori Matsushima Kyushu University
Hajime Nakanotani
Hajime Nakanotani Kyushu University
Takuma Yasuda
Takuma Yasuda Kyushu University
Chuanjiang Qin
Chuanjiang Qin Chinese Academy of Sciences
Hiroyuki Sasabe
Hiroyuki Sasabe Chitose Institute of Science and Technology
Franky So
Franky So North Carolina State University
Tetsuo Tsutsui
Tetsuo Tsutsui Kyushu University
Hiroyuki Tanaka
Hiroyuki Tanaka Kyushu University
Stephen R. Forrest
Stephen R. Forrest University of Michigan–Ann Arbor
Jang-Joo Kim
Jang-Joo Kim Seoul National University

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