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Proceedings Paper

Temperature dependence of the dark current and activation energy at avalanche onset of GaN avalanche photodiodes
Author(s): M. P. Ulmer; E. Cicek; R. McClintock; Z. Vashaei; M. Razeghi
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Paper Abstract

We report a study of the performance of an avalanche photodiode (APD) as a function of temperature from 564 K to 74 K. The dark current at avalanche onset decreases from 564 K to 74 K by approximately a factor of 125 and from 300 K to 74K the dark current at avalanche offset is reduced by a factor of about 10. The drop would have been considerably larger if the activation energy at avalanche onset (Ea) did not also decrease with decreasing temperature. These data give us insights into how to improve the single-photon counting performance of a GaN based ADP.

Paper Details

Date Published: 25 September 2012
PDF: 7 pages
Proc. SPIE 8453, High Energy, Optical, and Infrared Detectors for Astronomy V, 84531G (25 September 2012); doi: 10.1117/12.924173
Show Author Affiliations
M. P. Ulmer, Northwestern Univ. (United States)
E. Cicek, Northwestern Univ. (United States)
R. McClintock, Northwestern Univ. (United States)
Z. Vashaei, Northwestern Univ. (United States)
M. Razeghi, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 8453:
High Energy, Optical, and Infrared Detectors for Astronomy V
Andrew D. Holland; James W. Beletic, Editor(s)

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