Effect of interdiffusion of quantum well infrared photodetector
Open Access
- 2 December 1996
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 69 (23) , 3581-3583
- https://doi.org/10.1063/1.117213
Abstract
The intersubband infrared photodetector performance is theoretically analyzed for various stages of interdiffusion in AlGaAs/GaAs quantum well. The absorption strength and responsivity are enhanced for certain extents of interdiffusion and the peak detection wavelength red shifts continuously with a large tunable range from 7 to 38.4 μm. The dark current is at an acceptable value for small diffusion extent.Keywords
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