Minority carrier lifetime in LPE Hg1−x Cdx Te
- 1 July 1983
- journal article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology A
- Vol. 1 (3) , 1749-1751
- https://doi.org/10.1116/1.572208
Abstract
We report measurements on the minority carrier lifetime in n-type and p-type LPE Hg1−xCdxTe/CdTe with x∼0.2. For n-HgCdTe, we have measured lifetimes of 4–7 μs at 77 K for passivated samples. These values are comparable to the results reported for bulk material. For p-HgCdTe epilayers with thickness ≤20 μm, the measured lifetime is 15–20 ns at 77 K and is suspected to be limited by surface recombination. With excitation through the CdTe substrate, we have attempted to measure the bulk lifetime; preliminary results are reported.Keywords
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