Thermoelectric properties of MBE-grown HgCdTe-based superlattices from 100K to 300K
Year: 2016
Type: article
Abstract: We report on the thermoelectric properties of long-period HgCdTe superlattices (MCT SLs) from cryogenic temperature to room temperature. We find that the thermal conductivity is lower than the alloy value especially at low temperatures, the electrical conductivity is similar to that of alloy films, and the Seebeck coefficient is comparable to other SLs. Calculations based on Rytov’s elastic model show that the phonon group velocity is reduced due to folding by more than a factor of two relative to its value in bulk CdTe or HgTe. Thermal conductivity is found to be relatively constant over a wide range of temperatures.
Source: AIP Advances
DOI: 10.1063/1.4959159
Institutions: University of Michigan, EPIR Technologies (United States)
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,350
Funder: U.S. Department of Energy
OpenAlex ID: W2468091586