SiGe Quantum Well Infrared Photodetectors (QWIPs) for Remote Sensing Applications
Abstract
This report results from a contract tasking University of Leeds as follows: The contractor will investigate SiGe photodetectors. These photodetectors support simpler manufacturing, greater reliability, improved ruggedness and reduced cost when compared with more exotic photodetectors (such as HgTe). The contractors research will focus on p-type material, which allows for normal incidence absorption of the light and again the possibility of reducing the number of steps in the fabrication, which could lead to greater pixel utilization. The contractor's investigation will also evaluate the potential for Increasing the detection wavelength of SiGe devices. The mid- and long-wave infrared regions of the spectrum contain many molecular absorption lines; the extension of this to beyond 30 microns will encompass more chemical species and opens up a route for remote gas sensing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 11, 2002
- Accession Number
- ADA419724
Entities
People
- Paul Harrison
Organizations
- University of Leeds