Photoluminescence in liquid phase epitaxially grown Hg0.3Cd0.7Te

Abstract
The photoluminescence spectra of liquid phase epitaxially (LPE) grown Hg0.3Cd0.7Te and its CdTe substrate have been measured. The CdTe spectra consist of two band‐edge sets of lines, B and C, while the Hg0.3Cd0.7Te spectra consist of one set of lines, A. From the temperature dependence of both the integrated intensity and peak position, we determined that the A line is unrelated to the C line but is very possibly related to the B line. The B line in CdTe is due to recombination of electrons and holes bound to a neutral donor. This suggests that the same neutral donor may be present in both materials, whereas the impurity or defect responsible for the C line in CdTe is undetectable in LPE‐grown Hg0.3Cd0.7Te.

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