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Neutron damage effects in AlGaAs/GaAs solar cells. [Summary only]

Technical Report ·
OSTI ID:7176711
The AlGaAs/GaAs solar cells examined in the study were obtained from three sources. One set consisted of four layers of epitaxial material grown on n-type GaAs substrates by metal organic chemical vapor deposition (MOCVD). Following deposition of a thick n-type GaAs buffer layer, the p-type GaAs active layer is grown, followed by deposition of the AlGaAs window layer and a p/sup +/ GaAs contacting layer. The second set are also grown by MOCVD, but a top GaAs contacting layer is not used. The third set are fabricated by liquid phase epitaxy, and they do not have a top contacting layer. In addition to forward and reverse I-V characteristics and capacitance-reverse voltage measurements, quantum efficiency spectra were taken between 350 nm and 900 nm prior to and following fast neutron irradiation in the Sandia Pulsed Reactor (SPR II). (LEW)
Research Organization:
Sandia National Labs., Albuquerque, NM (USA)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
7176711
Report Number(s):
SAND-84-0579C; CONF-840712-3; ON: DE84009448
Country of Publication:
United States
Language:
English