Mechanically stacked concentrator tandem solar cellsFour-terminal mechanically stacked solar cells were developed for advanced space arrays with line-focus reflective concentrators. The top cells are based on AlGaAs/GaAs multilayer heterostructures prepared by low temperature liquid phase epitaxy. The bottom cells are based on heteroepitaxial InP/InGaAs liquid phase epitaxy or on homo-junction GaSb, Zn-diffused structures. The sum of the highest reached efficiencies of the top and bottom cells is 29.4 percent. The best four-terminal tandems have an efficiency of 27 to 28 percent. Solar cells were irradiated with 1 MeV electrons and their performances were determined as a function of fluence up to 10(exp 16) cm(exp-2). It was shown that the radiation resistance of developed tandem cells is similar to the most radiative stable AlGaAs/GaAs cells with a thin p-GaAs photoactive layer.
Document ID
19960009273
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Andreev, V. M. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Rumyantsev, V. D. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Karlina, L. B. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Kazantsev, A. B. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Khvostikov, V. P. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Shvarts, M. Z. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Sorokina, S. V. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Date Acquired
August 17, 2013
Publication Date
September 1, 1995
Publication Information
Publication: ESA, Proceedings of 4th European Space Power Conference (ESPC). Volume 2: Photovoltaic Generators, Energy Storage