Temperature coefficients of multijunction solar cellsTemperature coefficients measured in solar simulators with those measured under AM0 solar illumination are compared to illustrate the challenges in making these measurements. It is shown that simulator measurements of the short-circuit current (delta Jsc/delta T) are inaccurate due to the mismatch between the solar spectrum and the simulators at the bandgaps of the solar cells. Especially susceptible to error is the delta Jsc/delta T of cells which are components in monolithic multijunction solar cells, such as GaAs filtered by 1.93-eV AlGaAs, which has an AM0 coefficient of 6.82 micro-A/sq cm/deg C, compared to a Xenon simulator coefficient of 22.2 micro-A/sq cm/deg C.
Document ID
19910057298
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Virshup, G. F. (Varian Associates Palo Alto, CA, United States)
Chung, B.-C. (Varian Associates Palo Alto, CA, United States)
Ladle Ristow, M. (Varian Associates Palo Alto, CA, United States)
Kuryla, M. S. (Varian Research Center Palo Alto, CA, United States)
Brinker, D. (NASA Lewis Research Center Cleveland, OH, United States)