Title :
Low cost silicon solar cells with high efficiency at high concentrations
Author :
Khemthong, S. ; Cabaniss, S. ; Zhao, J. ; Wang, A.
Author_Institution :
Applied Solar Energy Corp., City of Industry, CA, USA
Abstract :
The technology for prismatic covered-concentrator cells has been successfully transferred from a university to a corporation. The basic equipment to fabricate high-efficiency microgrooved PESC cells at high concentration has been set up. The cell technology is being adapted for high-volume production, to show that high-efficiency silicon solar cells for high-concentration application can be manufactured at high yield and low cost. Several cell designs that were processed have demonstrated above 21% (AM 1.5) efficiency at medium-to-high concentration without the application of prismatic cover. This efficiency is based on the revised standard cell. The efficiency of the best cell with a prismatic cover is estimated to be 22.6%
Keywords :
elemental semiconductors; optical prisms; silicon; solar cells; solar energy concentrators; 22.6 percent; Si solar cells; microgrooved solar cells; prismatic covered-concentrator cells; semiconductor; Conductivity; Costs; Manufacturing processes; Photovoltaic cells; Process design; Production; Silicon; Solar energy; Sun; Surface resistance;
Conference_Titel :
Photovoltaic Specialists Conference, 1991., Conference Record of the Twenty Second IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-87942-636-5
DOI :
10.1109/PVSC.1991.169222
