A 24.4% solar to hydrogen energy conversion efficiency by combining concentrator photovoltaic modules and electrochemical cells
Nakamura, Akihiro, Ota, Yasuyuki, Koike, Kayo, Hidaka, Yoshihide, Nishioka, Kensuke, Sugiyama, Masakazu, Fujii, Katsushi
Published in Applied physics express (01.10.2015)
Published in Applied physics express (01.10.2015)
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Journal Article
Distributed control of a user-on-demand renewable-energy power-source system using battery and hydrogen hybrid energy-storage devices
Yamashita, Daiji, Tsuno, Katsuhiko, Koike, Kayo, Fujii, Katsushi, Wada, Satoshi, Sugiyama, Masakazu
Published in International journal of hydrogen energy (18.10.2019)
Published in International journal of hydrogen energy (18.10.2019)
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Journal Article
Effects of Ag Nanoparticle Coated Metal Electrodes on Electrochemical CO2 Reduction in Aqueous KHCO3
KOIKE, Kayo, NARA, Miyuki, FUKUSHIMA, Minori, BAE, Hyojung, HA, Jun-Seok, FUJII, Katsushi, WADA, Satoshi
Published in Denki kagaku oyobi kōgyō butsuri kagaku (25.03.2022)
Published in Denki kagaku oyobi kōgyō butsuri kagaku (25.03.2022)
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Journal Article
Improvement of Light Extraction Efficiency and Reduction of Leakage Current in GaN-Based LED Via V-Pit Formation
Kayo Koike, Seogwoo Lee, Sung Ryong Cho, Jinsub Park, Hyojong Lee, Jun-Seok Ha, Soon-Ku Hong, Hyun-Yong Lee, Meoung-Whan Cho, Yao, T.
Published in IEEE photonics technology letters (15.03.2012)
Published in IEEE photonics technology letters (15.03.2012)
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Journal Article
Time variation of GaN photoelectrochemical reactions affected by light intensity and applied bias
Koike, Kayo, Sato, Keiichi, Fujii, Katsushi, Goto, Takenari, Yao, Takafumi
Published in Physica status solidi. C (01.07.2010)
Published in Physica status solidi. C (01.07.2010)
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Journal Article
Efficient Evaluation of In Vivo Performance in Human for Generic Formulation by Novel Dissolution-Absorption Prediction (DAP) Workflow
Onishi, Motoki, Tagawa, Kozo, Jiko, Maiko, Koike, Kayo, Maruyama, Masato, Hashizume, Hidetoshi, Imagaki, Kazuhide, Higaki, Kazutaka
Published in Pharmaceutical research (01.09.2022)
Published in Pharmaceutical research (01.09.2022)
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Journal Article
Carrier Pathway for Photoelectrochemical Water Oxidation with Intermediate State in n‑type GaN Compared with Route of Anodic Corrosion
Fujii, Katsushi, Goto, Takenari, Koike, Kayo, Sugiyama, Masakazu, Nakamura, Shinichiro, Wada, Satoshi
Published in Journal of physical chemistry. C (29.04.2021)
Published in Journal of physical chemistry. C (29.04.2021)
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Journal Article
First principles calculations of surface dependent electronic structures: a study on β-FeOOH and γ-FeOOH
Sakamoto, Yuki, Noda, Yusuke, Ohno, Kaoru, Koike, Kayo, Fujii, Katsushi, Suzuki, Tomiko M, Morikawa, Takeshi, Nakamura, Shinichiro
Published in Physical chemistry chemical physics : PCCP (28.08.2019)
Published in Physical chemistry chemical physics : PCCP (28.08.2019)
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Journal Article
Bio-mimic energy storage system with solar light conversion to hydrogen by combination of photovoltaic devices and electrochemical cells inspired by the antenna-associated photosystem II
Koike, Kayo, Fujii, Katsushi, Kawano, Tomonori, Wada, Satoshi
Published in Plant signaling & behavior (03.03.2020)
Published in Plant signaling & behavior (03.03.2020)
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Journal Article
Effects of NiO-loading on n-type GaN photoanode for photoelectrochemical water splitting using different aqueous electrolytes
Koike, Kayo, Yamamoto, Kazuhiro, Ohara, Satoshi, Kikitsu, Tomoka, Ozasa, Kazunari, Nakamura, Shinichiro, Sugiyama, Masakazu, Nakano, Yoshiaki, Fujii, Katsushi
Published in International journal of hydrogen energy (13.04.2017)
Published in International journal of hydrogen energy (13.04.2017)
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Journal Article
Photoelectrochemical Property Differences between NiO Dots and Layer on n-Type GaN for Water Splitting
Koike, Kayo, Yamamoto, Kazuhiro, Ohara, Satoshi, Sugiyama, Masakazu, Nakano, Yoshiaki, Fujii, Katsushi
Published in Journal of the Electrochemical Society (01.01.2016)
Published in Journal of the Electrochemical Society (01.01.2016)
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Journal Article
Investigation of carrier transfer mechanism of NiO-loaded n-type GaN photoanodic reaction for water oxidation by comparison between band model and optical measurements
Koike, Kayo, Goto, Takenari, Nakamura, Shinichiro, Wada, Satoshi, Fujii, Katsushi
Published in MRS communications (01.06.2018)
Published in MRS communications (01.06.2018)
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