NASA NTRS · 19960045594
Gallium phosphide energy converters
Abstract
Betavoltaic power supplies based on gallium phosphide can supply long term low-level power with high reliability. Results are presented for GaP devices powered by Ni-63 and tritiarated phosphors. Leakage currents as low as 1.2 x 10(exp -17) A/cm(exp 2) have been measured and the temperature dependence of the reverse saturation current is found to have ideal behavior. A small demonstration system has been assembled that generates and stores enough electricity to light up an LED.
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Sims, P. E., DiNetta, Louis C., DuganCavanagh, K., Goetz, M. A.. 1996-02-01. Gallium phosphide energy converters. https://ntrs.nasa.gov/citations/19960045594
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