Journal of Electronic Materials, volume 35, issue 6, pages 1166-1173

The HgCdTe electron avalanche photodiode

J Beck 1
C. Wan 1
M Kinch 1
J. Robinson 1
P. Mitra 1
R Scritchfield 1
F Ma 2
J. Campbell 2
Publication typeJournal Article
Publication date2006-06-01
Quartile SCImago
Q3
Quartile WOS
Q3
Impact factor2.1
ISSN03615235, 1543186X
Materials Chemistry
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Abstract
Electron injection avalanche photodiodes in short-wave infrared (SWIR) to long-wave infrared (LWIR) HgCdTe show gain and excess noise properties indicative of a single ionizing carrier gain process. The result is an electron avalanche photodiode (EAPD) with “ideal” APD characteristics including near noiseless gain. This paper reports results obtained on long-, mid-, and short-wave cutoff infrared Hg1−xCdxTe EAPDs (10 µm, 5 µm, and 2.2 µm) that use a cylindrical “p-around-n” front side illuminated n+/n-/p geometry that favors electron injection into the gain region. These devices are characterized by a uniform, exponential, gain voltage characteristic that is consistent with a hole-to-electron ionization coefficient ratio, k=αh/αe, of zero. Gains of greater than 1,000 have been measured in MWIR EAPDS without any sign of avalanche breakdown. Excess noise measurements on midwave infrared (MWIR) and SWIR EAPDs show a gain independent excess noise factor at high gains that has a limiting value less than 2. At 77 K, 4.3-µm cutoff devices show excess noise factors of close to unity out to gains of 1,000. A noise equivalent input of 7.5 photons at a 10-ns pulsed signal gain of 964 measured on an MWIR APD at 77 K provides an indication of the capability of this new device. The excess noise factor at room temperature on SWIR EAPDs, while still consistent with the k=0 operation, approaches a gain independent limiting value of just under 2 because of electron-phonon interactions expected at room temperature. The k=0 operation is explained by the band structure of the HgCdTe. Monte Carlo modeling based on the band structure and scattering models for HgCdTe predict the measured gain and excess noise behavior.

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Beck J. et al. The HgCdTe electron avalanche photodiode // Journal of Electronic Materials. 2006. Vol. 35. No. 6. pp. 1166-1173.
GOST all authors (up to 50) Copy
Beck J., Wan C., Kinch M., Robinson J., Mitra P., Scritchfield R., Ma F., Campbell J. The HgCdTe electron avalanche photodiode // Journal of Electronic Materials. 2006. Vol. 35. No. 6. pp. 1166-1173.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1007/s11664-006-0237-3
UR - https://doi.org/10.1007/s11664-006-0237-3
TI - The HgCdTe electron avalanche photodiode
T2 - Journal of Electronic Materials
AU - Beck, J
AU - Wan, C.
AU - Kinch, M
AU - Robinson, J.
AU - Mitra, P.
AU - Scritchfield, R
AU - Ma, F
AU - Campbell, J.
PY - 2006
DA - 2006/06/01 00:00:00
PB - Springer Nature
SP - 1166-1173
IS - 6
VL - 35
SN - 0361-5235
SN - 1543-186X
ER -
BibTex |
Cite this
BibTex Copy
@article{2006_Beck,
author = {J Beck and C. Wan and M Kinch and J. Robinson and P. Mitra and R Scritchfield and F Ma and J. Campbell},
title = {The HgCdTe electron avalanche photodiode},
journal = {Journal of Electronic Materials},
year = {2006},
volume = {35},
publisher = {Springer Nature},
month = {jun},
url = {https://doi.org/10.1007/s11664-006-0237-3},
number = {6},
pages = {1166--1173},
doi = {10.1007/s11664-006-0237-3}
}
MLA
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MLA Copy
Beck, J., et al. “The HgCdTe electron avalanche photodiode.” Journal of Electronic Materials, vol. 35, no. 6, Jun. 2006, pp. 1166-1173. https://doi.org/10.1007/s11664-006-0237-3.
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