Publications [#66839] of Adrienne D. Stiff-Roberts

Papers Published

1. Stiff-Roberts, A.D. and Chakrabarti, S. and Kennerly, S. and Bhattacharya, P., High responsivity, polarization-sensitive, 70-layer InAs/GaAs quantum dot infrared photodetector, OSA Trends in Optics and Photonics Series, vol. 88 (2003), pp. 464 - 466, Baltimore, MD, United States
   (last updated on 2007/04/16)

   Abstract:
   The material characteristics of 70-layer quandom dot infrared photodetector (QDIP) was investigated using transmission electron microscopy and photoluminescence measurements. QDIP comprises of InAs/GaAs quantum dots, which offers nornal incidence, low dark current, high temperature, multi-wavelength detection useful for environmental monitoring, medical diagnosis and space science. It improves reponsivity and conversion efficiency and can also be used for polarization sensitive detection. The influence of the background can be eliminated by considering both in-plane polarized and perpendicularly polarized detection.

   Keywords:
   Photodetectors;Transmission electron microscopy;Photoluminescence;Heterojunctions;Image analysis;Light absorption;Annealing;Space research;