[17a-A21-1~5] Organic vs Inorganic Compound Materials, Thin-film Solar Cell Battle Royale

11:30 AM - 12:00 PM JST(2:30 AM - 3:00 AM UTC)

[17a-A21-5] Development of High-efficiency Si Tandem Solar Cells for Solar-powered Vehicles

〇Masafumi Yamaguchi¹, Kyotaro Nakamura¹, Ryo Ozaki¹, Nobuaki Kojima¹, Yoshio Ohshita¹ (1.Toyota Tech. Inst.)

Keywords:

Solar Cell,High-efficiency,Tandem

Solar Photovoltaics are expected to contibute as major energy system with 75TW in 2050. In order to realize such a vision and roadmap, development of high-efficiency solar solar cell modules are necessary. Howeveer, efficiencies of Si solar cells are approaving to efficiency limit (29.4%) and thus multi-junctuon and Si tandem solar cells are expected to realize higher efficiency and low cost. High-efficincy potential of various tandem solar cells such as III-V, II-VI, CIGS and perovskite is discussed. Potential of solar-powered vehicles installed with our III-V/Si 3-junction solar cell module (33.7%), perovskite/Si 2-junction solar cell module (28.6%) and various single-junction solar cell modules is also discussed. .