[20p-E314-1~14] 16.3 Bulk, thin-film and other silicon-based solar cells

[20p-E314-11] Improvement of Textured Rib-Si Solar Cells

〇Tsukasa Takamura¹, Ryuto Iwata¹, Yukimi Ichikawa¹, Kimihiko Saito², Makoto Konagai¹ (1.Tokyo City Univ., 2.Fukushima Univ.)

Keywords:semiconductor, Solar cells, Silicon Heterojunction Solar Cell

For the improvement of the conversion efficiency in silicon solar cells, we are developing Rib type solar cells. In this study the modifications of the layer-structured Rib and c-Si solar cells were investigated. For instance, we obtained the dependence of the open circuit voltage (Voc) toward the i-a-SiO:H layer-thickness. Thicker i-a-SiO:H layer increased Voc. On the other hand the i-a-SiO:H layer thicker than 2nm reduced Voc. This suggests the increasing the number of the interface defects due to the excessive deposition of the i-a-SiO:H layer.