The PbSe metastable phase. II. The energy gap of the CsCl-type phase of PbSe and PbSe doped with Cd
- 25 October 1993
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 5 (43) , 7971-7978
- https://doi.org/10.1088/0953-8984/5/43/011
Abstract
The transmittance and reflectance spectra of films of PbSe and PbSe doped with 2 mol% Cd grown by two different non-equilibrium growth techniques, laser-assisted deposition and electron-beam evaporation, on KCl and BaF2 substrates are measured from 400 to 4000 cm-1 in the temperature range 80-300 K. The energy gaps of the metastable CsCl-type phases of PbSe and PbSe:Cd and their temperature coefficients are determined from the interference spectra. The energy profiles of the films are also obtained.Keywords
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