Research field (2)：
Structural and functional materials
, Semiconductors, optical and atomic physics
Research keywords (1)：
Solid States Physics
Research theme for competitive and other funds (9)：
2022 - 2025 High mobility thermoelectric materials: clathrates with controlled electronic structure in caged crystal structure by guest atomic orbital selection
2018 - 2021 Development of high-mobility thermoelectric clathrates with controlled nanoblock structure consisting of functional cages
2016 - 2019 Development of thermoelectric materials having huge numbers of valleys
2015 - 2018 Study of thermoelectric material design with caged and randomly substituted structures by using quantum interference effects of electrons
2014 - 2017 Development of segmented thermoelectric modules using clathrate compounds without toxic materials
2011 - 2013 Research of High Performance Thermoelectric Materials with Nano-size Cages by focusing Random Host Structure of Quaternary Sn-based Clathrate Semiconductors
2010 - 2012 Localized states and thermoelectric properties of vacancy-containing Sn-based clathrate compounds
2008 - 2010 Study of High Performance Thermoelectric Materials due to Control of Carrier Transport Paths and its Scattering Mechanism.
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Papers (33)：
Kengo Kishimoto, Masahiro Hayashi, Koji Akai. Thermoelectric properties and band structures of vacancy-containing Sn-based clathrates K8Sn44-Ge. Journal of Solid State Chemistry. 2021. 303. 122471-122471
Riku Takeshita, Kengo Kishimoto, Hironori Asada, Koji Akai. Thermoelectric properties of type-I clathrate Na8Ga8Ge38. Journal of Solid State Chemistry. 2021. 294. 121911-121911
Kazuki Kawasaki, Kengo Kishimoto, Hironori Asada, Koji Akai. Synthesis and some properties of Ba24-(Ga,Sn)136 (x~4) type-II clathrates. Journal of Solid State Chemistry. 2020. 290. 121540/1-121540/8
Kengo Kishimoto, Koji Akai. Carrier mobilities, thermoelectric properties, and band structures of type-I clathrates Ba8M16Ge30 (M = Al, Ga, In). Japanese Journal of Applied Physics. 2020. 59. 8. 081001-081001
Kengo Kishimoto, Koji Akai, Kazuo Nagase, Atsushi Yamamoto. Power generation characteristics of thermoelectric conversion module using type-II (K,Ba)24(Ga,Sn)136 and type-VIII Ba8Ga16(Sn,Ge)30 clathrates. Applied Physics Express. 2020. 13. 1. 011001-011001
Akai K., Kono Y., Kishimoto K. 25aTJ-8 Study of carrier conductivity on group-III/IV based clathrate semiconductors by using a first-principles calculation (II). Meeting abstracts of the Physical Society of Japan. 2011. 66. 1. 847-847
Akai Koji, Kouno Yasushi, Kishimoto Kengo. 24aRL-3 Study of carrier conductivity on group-III/IV based clathrate semiconductors by using a first-principles calculation. Meeting abstracts of the Physical Society of Japan. 2010. 65. 2. 795-795
Kono Y., Akai K., Yamamoto S. 25pYD-4 First principle calculation about co-doping effect to tin based clathrate. Meeting abstracts of the Physical Society of Japan. 2009. 64. 2. 740-740
ETO Takeshi, KISHIMOTO Kengo, KOGA Kenji, AKAI Koji, KOYANAGI Tsuyoshi, ANNO Hiroaki, TANAKA Terumitsu, KURISU Hiroki, YAMAMOTO Setsuo, MATSUURA Mitsuru. Study of Zn-Substituted Germanium Clathrates as High Performance Thermoelectric Materials Assisted by First-Principles Electronic Structure Calculation. Materials Transactions. 2009. 50. 3. 631-639
