Title :
Over 16% efficiency large area-multicrystalline silicon solar cell
Author :
Shirasawa, K. ; Takahashi, H. ; Inomata, Y. ; Ogasawara, S. ; Fukui, K. ; Okada, K. ; Takayama, M. ; Watanabe, H.
Author_Institution :
Kyocera Corp., Shiga, Japan
Abstract :
Since 1989, Kyocera has been carrying out research into high efficiency solar cells using multicrystalline silicon substrates (15 cm×15 cm) made by the Sumitomo Sitix Co. Ltd. The bifacial Silicon nitride solar cell (BSNSC) fabrication process developed by Kyocera has been applied to this large area solar cell. A conversion efficiency of 16.4% (global AM 1.5, 100 mW/cm2, 25°C) for the 15 cm×15 cm multicrystalline silicon solar cell has been obtained by optimizing the front surface structure to reduce the reflective losses, and by improving the front electrode pattern using an evaporation method
Keywords :
electrodes; semiconductor device testing; semiconductor thin films; silicon compounds; solar cells; substrates; vapour deposited coatings; vapour deposition; 15 cm; 16.4 percent; 25 C; SiN; bifacial cells; evaporation method; fabrication process; front electrode pattern; front surface structure; high efficiency; large area; multicrystalline semiconductor; reflective losses; research; solar cell; substrates; Costs; Electrodes; Fabrication; Photovoltaic cells; Research and development; Semiconductor films; Silicon; Substrates; Surface structures; Surface treatment;
Conference_Titel :
Photovoltaic Specialists Conference, 1993., Conference Record of the Twenty Third IEEE
Conference_Location :
Louisville, KY
Print_ISBN :
0-7803-1220-1
DOI :
10.1109/PVSC.1993.347042
