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Proceedings Paper

Space as an Adverse Environment: Vacuum Surface and Gamma Ray Irradiation Effects on LED's and Photodiodes
Author(s): S. Hava; N. S. Kopeika
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Paper Abstract

Vacuum surface and gamma-ray irradiation effects on photodiodes and LED's play a significant role in the optical and electronic properties of these diodes, particularly in a space environment, which involves both ionizing radiation as well as vacuum conditions. Exposure of GaAs light emitting diodes (LED's) to vacuum gives rise to desorption of surface-adsorbed gases and subsequent free charge diffusion and redistribution that significantly alter diode properties. Changes in photodiode properties due to vacuum operation and y-radiation have also been observed. These changes are given, and a model explaining the changes is presented.

Paper Details

Date Published: 4 February 1987
PDF: 3 pages
Proc. SPIE 0721, Fiber Optics in Adverse Environments III, (4 February 1987); doi: 10.1117/12.937621
Show Author Affiliations
S. Hava, Ben-Gurion University of the Negev (Israel)
N. S. Kopeika, Ben-Gurion University of the Negev (Israel)

Published in SPIE Proceedings Vol. 0721:
Fiber Optics in Adverse Environments III
Roger A. Greenwell, Editor(s)

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