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Proceedings Paper

Optics in solar cells and batteries for Soviet space application
Author(s): Mark M. Koltun
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Paper Abstract

The high fluxes of particles (mainly electrons and protons) that are present in the Earth's radiation belts, produce a deterioration in the electrical parameters of semiconductor devices carried by space vehicles. Semiconductor solar cells that have to be mounted on the surface of these vehicles, or on special outside panels, in order to maximize solar energy utilization are particularly prone to this deleterious effect. Although various interesting ways of increasing the radiation stability of semiconducting materials themselves have been suggested, for example, lithium ion implantation, or high-temperature annealing (up to 400o), the deposition of transparent and radiation-stable coatings remains the most effective way of shielding solar cells. The transparent shield is effective because it either attenuates or cuts off altogether the low energy particles, of which there are many in the Earth's radiation belts (the energy spectrum of protons and electrons in the radiation belts decreases sharply with increasing energy). It is known that it is precisely these low-energy particles that have the most destructive effect on cells and reduce their efficiency.

Paper Details

Date Published: 13 August 1993
PDF: 21 pages
Proc. SPIE 1971, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing, (13 August 1993); doi: 10.1117/12.151019
Show Author Affiliations
Mark M. Koltun, Krzhizhanovsky Power Research Institute (Russia)


Published in SPIE Proceedings Vol. 1971:
8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing
Moshe Oron; Itzhak Shladov; Yitzhak Weissman, Editor(s)

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