Research keywords (7):
silicides
, Zintl phase
, high pressures
, solar cell materials
, thermoelectric materials
, superconducting materials
, semiconductors
Research theme for competitive and other funds (8):
2022 - 2026 Physical properties elucidation of silicide and elemental technologies development for thermoelectric devices
2021 - 2025 Synthesis of group IV clathrate and its application of optical devices as direct-transition semiconductor
2017 - 2021 Research on physical properties of SiGe clathrate having direct gap in visible region
2016 - 2019 Development of thin-film multi-junction solar-cell materials that consist of earth-abundant elements
2011 - 2017 Development of Group 14 clathrate solar cell
2010 - 2014 新超電導および関連機能物質の探索と産業用超電導線材の応用
2010 - 2011 半導体シリコンクラスレートの探索
2004 - 2006 Superconductivity in ternary C32-type silicides
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Papers (145):
Motoharu Imai, Yoshitaka Matsushita. Effect of Ca substitution on crystal structure and band gap of solar cell material BaSi2. Journal of Solid State Chemistry. 2024
Motoharu Imai, Kwangsik Han, Mitsuaki Nishio, Takeshi Kato, Satoshi Kawada, Satoshi Emura, Taichi Abe, Hiroshi Fujihisa. Sr-Si diagram at Si contents of 55-100 at% and crystal structure of SrSi2-. Journal of Alloys and Compounds. 2023
Motoharu Imai, Takanobu Hiroto. Thermal expansion coefficient and bulk modulus of silicides. Japanese Journal of Applied Physics. 2023
T. Suemasu, K. O. Hara, H. Udono, M. Imai. Silicon meets group-II metals in energy and electronic applications-How to handle reactive sources for high-quality films and bulk crystals. Journal of Applied Physics. 2022
Ryo Matsumoto, Kensei Terashima, Satoshi Nakano, Kazuki Nakamura, Sayaka Yamamoto, Takafumi D. Yamamoto, Takahiro Ishikawa, Shintaro Adachi, Tetsuo Irifune, Motoharu Imai, et al. High-Pressure Synthesis of Superconducting Sn3S4 Using a Diamond Anvil Cell with a Boron-Doped Diamond Heater. INORGANIC CHEMISTRY. 2022. 61. 10. 4476-4483
Motoharu Imai. Electronic States and Optical Properties of Silicides with Unique Arrangements of Si Atoms. The Laser Society of Japan. 2022. 50. 10. 580-584
谷本拓, 北浦守, 渡邊真太, 伊奈稔哲, 今井基晴, 鵜殿治彦, 石崎学, 山根久典, 大西彰正. Local structure analysis of Mg2Si single crystal by EXAFS experiment. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2022. 69th
Motoharu Imai, Naoto Umezawa. Electronic properties, optical absorption coefficient, and defect properties of thin-film solar cell material BaSi2. Butsuri. 2020. 75. 3. 148-153
MATSUSHITA Akiyuki, SASAKI Taizo, NAKA Takashi, IMAI Motoharu. A Tribute to the Memory of the Late Prof. Yamada. The Review of High Pressure Science and Technology. 2017. 27. 2. 156-157