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1 June 2011 Analysis and performance of type-II superlattice infrared detectors
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Abstract
We discuss the current performance of long-wavelength infrared photodetectors based on type-II superlattices, and the projected characteristics for diffusion-limited operation. For optimized architectures such as graded-gap and abrupt-heterojunction designs, the dark currents are strongly dominated by Shockley-Read (SR) rather than Auger processes. A factor of 10 improvement over the demonstrated SR lifetimes would lead to a factor of 4 lower dark current than state-of-the-art HgCdTe devices.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Igor Vurgaftman, Chadwick L. Canedy, Eric M. Jackson, Jill A. Nolde, Chaffra A. Affouda, Edward H. Aifer, Jerry R. Meyer, Andrew D. Hood, Allan J. Evans, and William E. Tennant "Analysis and performance of type-II superlattice infrared detectors," Optical Engineering 50(6), 061007 (1 June 2011). https://doi.org/10.1117/1.3578926
Published: 1 June 2011
JOURNAL ARTICLE
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