Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
62 (1993), S. 2679-2681
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The calculation of the photoabsorption spectra and quantum efficiency of Si-SiGe quantum-well (QW) detectors are presented, with the effects of depolarization and electron-electron exchange interaction taken into consideration. We show that the Si-SiGe QW detectors possess lower dark current, lower tunneling rates, and better photoabsorption characteristics when compared to GaAs-AlGaAs photodetectors. These imply that Si-SiGe QW detector performance characteristics are superior to GaAs-AlGaAs QW infrared photodetectors in addition to its advantage of compatibility with Si-readout circuity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.109283
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