Development of Large Area PV HgCdTe Detectors for 10.6 Micrometers.
Abstract
The purpose of this program was to develop large area PV HgCdTe detectors for laser receiver systems operating at 10.6 micrometer. The work accomplished included: growth of HgCdTe single-crystal material by two different methods; design and fabrication of quadrant detector arrays with elemental areas of 1 x 1 mm square and 2 x 2 mm square per quadrant; test and evaluation of quadrant arrays; and packaging of quadrant arrays in evacuated glass/metal dewars with J-T cryostats for cooling and four-channel preamplifiers for laboratory or field operation. HgCdTe crystals were produced by both zone melting and solid-state recrystallization processes. Either technique yielded sufficient single-crystal material to fabricate the large area arrays in monolithic form. The uniformity of alloy composition was adequate to give nearly identical spectral response characteristics for each detector quadrant. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1980
- Accession Number
- ADA118091
Entities
People
- K. J. Riley
- P. R. Bratt