Title :
High efficiency GaAs/GaSb tandem solar cells and tandem circuit cards
Author :
Fraas, Lewis ; Avery, James ; Martin, John ; Sundaram, V. ; Girard, Gerald ; Dinh, Van ; Mansoori, N. ; Yerkes, J.W.
Author_Institution :
Boeing High Technol. Center, Seattle, WA, USA
Abstract :
Infrared-sensitive GaSb cells and visible-light-sensitive GaAs cells designed for satellite applications are described. The best component cell efficiencies add up to 28.1% under concentrated sunlight (30×, AM0). Two-terminal tandem cell circuit cards containing nine transparent GaAs cells mounted over holes on the front side of a ceramic double-sided printed circuit card and nine GaSb cells mounted on the back side of the same card have been fabricated and tested. Circuit level conversion efficiencies over 25% (AM0) are demonstrated
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; space vehicle power plants; 25 to 28.1 percent; GaAs-GaSb tandem solar cells; ceramic double-sided printed circuit card; concentrated sunlight; high efficiency; infrared-sensitive cells; satellite applications; two-terminal tandem cell circuit cards; visible-light-sensitive cells; Assembly; Ceramics; Energy conversion; Gallium arsenide; Integrated circuit interconnections; Photonic band gap; Photovoltaic cells; Printed circuits; Solar power generation; Wiring;
Conference_Titel :
Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety
Conference_Location :
Washington, DC
DOI :
10.1109/IECEC.1989.74563
