Carrier confinement photoconductive detector
- 18 April 1988
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 52 (16) , 1323-1325
- https://doi.org/10.1063/1.99148
Abstract
We propose a new device, the carrier confinement photoconductive detector, in which an improvement in performance over a conventional photoconductor is achieved by confinement of photogenerated carriers in the active channel. The confinement can be realized by placing a layer of a wide band-gap semiconductor between the channel and ohmic contact. Analytical and numerical analyses show that gain-bandwidth improvement of 100% can be achieved by using the GaAl/AlGaAs system.Keywords
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