Effects of indium and tin overlayers on the photoluminescence spectrum of mercuric iodide
- 1 March 1990
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 67 (5) , 2571-2575
- https://doi.org/10.1063/1.345516
Abstract
Mercuric iodide (HgI2 ) crystals with semitransparent metal overlayers of indium and tin were characterized using low-temperature photoluminescence (PL) spectroscopy. The PL spectra were found to differ for points beneath the thin metal overlayers and points that were masked off during each deposition. The photoluminescence data were compared with PL measurements taken on HgI2 photodetectors with indium-tin-oxide (ITO) entrance electrodes. The similarities of the spectra for the HgI2 samples with In, Sn, and ITO conducting overlayers indicate that the regions in the ITO-contacted photodetectors with relatively poor photoresponses are associated with the interaction of indium or tin with the mercuric iodide substrate.This publication has 15 references indexed in Scilit:
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