Auger recombination in long-wave infrared InAs/InAsSb type-II superlattices
The Auger lifetime is a critical intrinsic parameter for infrared photodetectors as it determines the longest potential minority carrier lifetime and consequently the fundamental limitations to their performance. Here, Auger recombination is characterized in a long-wave infrared InAs/InAsSb type-II superlattice. Auger coefficients as small as 7.1×10 –26 cm 6/s are experimentally measured using carrier lifetime data at temperatures in the range of 20 K–80 K. The data are compared to Auger-1 coefficients predicted using a 14-band K•p electronic structure model and to coefficients calculated for HgCdTe of the same bandgap. In conclusion, the experimental superlattice Auger coefficients are found to be an order-of-magnitude smaller than HgCdTe.
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- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. of Illinois, Chicago, IL (United States)
- Publication Date:
- Report Number(s):
- SAND-2015-11141J
Journal ID: ISSN 0003-6951; APPLAB; 616459
- Grant/Contract Number:
- AC04-94AL85000
- Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 107; Journal Issue: 26; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Research Org:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org:
- USDOE National Nuclear Security Administration (NNSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; III-V semiconductors; superlattices; band gap; carrier lifetimes; carrier density
- OSTI Identifier:
- 1323900
- Free Publicly Accessible Full Text
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Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1063/1.4939147