Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
52 (1988), S. 1701-1703
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
A photovoltaic infrared detector based on photoemission from a single modulation doped GaAs-AlGaAs quantum well is presented. The modulation doping provides a built-in field which allows unbiased operation. We show results from a device which is sensitive to 180 meV (7 μm wavelength) light, with a bandwidth of 20 meV, for which we estimate the quantum efficiency to be 1%. We demonstrate that the detector may be tuned to different wavelengths by varying the width of the well.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.99022
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