講演情報
[16p-K308-13]White Building-Integrated Photovoltaics by Micron Textured Structure
〇(D)Disong Zhao1, Kaito Shishido1, Michio Kondo1,2, Hiroyuki Wada1 (1.Science Tokyo., 2.Waseda Univ.)
キーワード：
Building-integrated photovoltaics、BIPV、Sandblasting
Building-integrated photovoltaics (BIPV) are solar panels integrated into building facades, serving a dual purpose of generating renewable energy and enhancing aesthetic appeal. Conventional solar cells, typically dark color, are often considered unaesthetic for architectural applications. To address this, white-colored BIPV have been developed. However, achieving a white appearance reduces light transmission and decreased conversion efficiency, as light is reflected rather than absorbed. Existing methods, such as adding optical films or mineral materials, can produce a whiter color but significantly reduce conversion efficiency. Sandblasting the glass surface creates a textured layer that scatters incident light. By adjusting the grain size of the sand, textured glass with varying surface roughness can be fabricated. Textured structure alters the angle of incident light, increasing the light path length within the solar cells. This study aims to use textured glass to achieve a white BIPV appearance while maintaining high conversion efficiency.