K
Kunta Yoshikawa
Researcher at Kaneka Corporation
Publications - 31
Citations - 2728
Kunta Yoshikawa is an academic researcher from Kaneka Corporation. The author has contributed to research in topics: Solar cell & Layer (electronics). The author has an hindex of 9, co-authored 30 publications receiving 1995 citations.
Papers
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Journal ArticleDOI
Silicon heterojunction solar cell with interdigitated back contacts for a photoconversion efficiency over 26
Kunta Yoshikawa,Hayato Kawasaki,Yoshida Wataru,Toru Irie,Katsunori Konishi,Kunihiro Nakano,Toshihiko Uto,Daisuke Adachi,Masanori Kanematsu,Hisashi Uzu,Kenji Yamamoto +10 more
TL;DR: In this paper, a silicon heterojunction with interdigitated back contacts was presented, achieving an efficiency of 26.3% and a detailed loss analysis to guide further developments.
Journal ArticleDOI
Exceeding conversion efficiency of 26% by heterojunction interdigitated back contact solar cell with thin film Si technology
Kunta Yoshikawa,Yoshida Wataru,Toru Irie,Hayato Kawasaki,Katsunori Konishi,Ishibashi Hirotaka,Tsuyoshi Asatani,Daisuke Adachi,Masanori Kanematsu,Hisashi Uzu,Kenji Yamamoto +10 more
TL;DR: In this paper, a heterojunction interdigitated back contact solar cell with conversion efficiency of 26.6% was developed, which was independently confirmed by Fraunhofer Institute for Solar Energysystem Callab.
Journal ArticleDOI
High-efficiency heterojunction crystalline Si solar cells
TL;DR: In this paper, the authors proposed a two-terminal tandem structure with a heterojunction c-Si solar cell and a perovskite solar cell, which achieved record-breaking conversion efficiencies of 26.7% for cells and 24.5% for modules.
Journal ArticleDOI
Advanced light trapping designs for high efficiency thin film silicon solar cells
Andrea Feltrin,Tomomi Meguro,Elisabeth Van Assche,Takashi Suezaki,Mitsuru Ichikawa,Takashi Kuchiyama,Daisuke Adachi,Osamu Inaki,Kunta Yoshikawa,Gensuke Koizumi,Hisashi Uzu,Hiroaki Ueda,Toshihiko Uto,Fujimoto Takahisa,Toru Irie,Hironori Hayakawa,Naoaki Nakanishi,Masashi Yoshimi,Kenji Yamamoto +18 more
TL;DR: In this paper, more advanced super light trapping schemes have been designed and implemented in thin film tandem junctions at different levels in the solar cells to further enhance light trapping capabilities, and these innovative designs improve the output current in amorphous/microcrystalline tandem devices with thin photoactive layers.
Patent
Thin-film photoelectric conversion device
Tomomi Meguro,Mitsuru Ichikawa,Fumiyasu Sezaki,Kunta Yoshikawa,Takashi Kuchiyama,Kenji Yamamoto +5 more
TL;DR: In this article, a thin-film photoelectric conversion device with a high level of conversion efficiency was proposed, consisting of a transparent electroconductive film, a photo-electric conversion unit, a transparent electrode layer, and a high-reflectance electrode layer.