On the heat capacity of lead selenide and telluride
- Moscow Institute of Electronic Engineering (Russian Federation)
- Moscow State Univ. (Russian Federation)
The thermodynamic functions of lead selenide and telluride presented in handbooks are based on measurements of low-temperature heat capacities of these compounds. The heat capacities were measured in an adiabatic calorimeter in the temperature ranges 25-240 K for lead selenide single crystals and 20-260 K for lead telluride single crystals. The conductivity of the samples at 290 K was measured to be {approximately}500 and {approximately}100 S/cm, respectively, and the charge-carrier concentration was {approximately}10{sup 18} cm{sup -3}. However, no spectrochemical data were reported. The results of these measurements are doubtful because the heat capacities are virtually temperature-independent in the range of 210-240 K for lead selenide and 210-260 for lead telluride. We conducted an investigation on the heat capacities of lead selenide abd lead telluride in the temperature range 350-580 K using as DSM-2M differential calrimeter.
- OSTI ID:
- 115178
- Journal Information:
- Inorganic Materials, Journal Name: Inorganic Materials Journal Issue: 9 Vol. 30; ISSN INOMAF; ISSN 0020-1685
- Country of Publication:
- United States
- Language:
- English
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