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Proceedings Paper

Photodiode Quantum Efficiency Improvement through Vacuum Surface Effects
Author(s): N. S. Kopeika; I. Hirsh; E. Hazout
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Paper Abstract

Surface effects stemming simply from photodiode operation in vacuum environment are seen to improve quantum efficiency significantly. This is attributed to desorption of surface impurities and consequent reduction of surface potential, recombination, and Debye length. Effective depletion layer width can also be noticeably affected by free charge redistribution after desorption of surface impurities. Quantum efficiency here in vacuum is greatest at longer wavelengths because of decreased surface depth in vacuum.

Paper Details

Date Published: 19 January 1984
PDF: 9 pages
Proc. SPIE 0430, Infrared Technology IX, (19 January 1984); doi: 10.1117/12.936387
Show Author Affiliations
N. S. Kopeika, Ben-Gurion University of the Negev (Israel)
I. Hirsh, Ben-Gurion University of the Negev (Israel)
E. Hazout, Ben-Gurion University of the Negev (Israel)


Published in SPIE Proceedings Vol. 0430:
Infrared Technology IX
Richard A. Mollicone; Irving J. Spiro, Editor(s)

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