[10p-N304-1~7] 16.3 Bulk, thin-film and other silicon-based solar cells

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[10p-N304-5] Effective utilization of IR light in aesthetic crystalline Si photovoltaic modules without encapsulant

〇(M1)Towa Kameda¹, Yuta Siato¹, Yasuhiro Okada², Yohei Ogashiwa², Hiroaki Takahashi², Atsushi Nakahara³, Keisuke Ohdaira⁴, Kazuhiro Gotoh^1,5, Atsushi Masuda^1,5 (1.Grad. Sch. Sci. Tech., Niigata Univ., 2.Kyocera Corp., 3.Dai Nippon Printing, 4.JAIST, 5.IRCNT, Niigata Univ.)

Keywords:

c-Si PV module,Unencapsulant module

This study investigated the effect of applying an infrared (IR) reflective black backsheet (BS) to crystalline Si photovoltaic modules without encapsulant. Compared to conventional non-reflective black BS, the IR reflective BS increased the short-circuit current by reflecting IR light while maintaining aesthetic appearance, suggesting improved conversion efficiency. These results indicate potential applications in building-integrated (BIPV) and vehicle-integrated (VIPV) photovoltaics, where lightweight design and aesthetics are essential.