A Detailed Ensemble Monte Carlo Study of the Effect of Quantum Well Width on Quantum Well Infrared Photodetector Characteristics

Authors

SEMA MEMİŞ
ORAY ORKUN CELLEK
UMUT BOSTANCI
MEHMET TOMAK
CENGİZ BEŞİKÇİ

DOI

-

Abstract

We present a simulation based investigation of the dependence of the device characteristics on the quantum well width in AlGaAs/GaAs quantum well infrared photodetectors (QWIPs) through the ensemble Monte Carlo technique. The simulations on two different standard Al_{0.3}Ga_{0.7}As/GaAs QWIPs with quantum well widths of 36 and 44 Å have shown that the gain in the former is considerably higher, which is due to much longer lifetime of the photoexcited electrons as a result of lower capture probability in the device. We discuss this observation by the investigation of the electron scattering rates in these structures through realistically evaluated scattering mechanisms between two and three-dimensional states in the multi-quantum well structure.

Keywords

Quantum well infrared photodetectors.

First Page

335

Last Page

344

Recommended Citation

MEMİŞ, SEMA; CELLEK, ORAY ORKUN; BOSTANCI, UMUT; TOMAK, MEHMET; and BEŞİKÇİ, CENGİZ (2006) "A Detailed Ensemble Monte Carlo Study of the Effect of Quantum Well Width on Quantum Well Infrared Photodetector Characteristics," Turkish Journal of Physics: Vol. 30: No. 4, Article 14. Available at: https://journals.tubitak.gov.tr/physics/vol30/iss4/14