The excellent TE performance of photoelectric material CdSe along with a study of Zn(Cd)Se and Zn(Cd)Te based on first-principles.

ABSTRACT: Zn(Cd)Se and Zn(Cd)Te are well known for their excellent photoelectric performance, however, their thermoelectric (TE) properties are usually ignored. By taking advantage of first-principles calculations, the Boltzmann transport equation and semiclassical analysis, we executed a series of thermal and electronic transport investigations on these materials. Our results show that CdSe has the lowest anisotropic thermal conductivity, κ _L, of the four materials, at 4.70 W m^-1 K^-1 (c axis) and 3.85 W m^-1 K^-1 (a axis) at a temperature of 300 K. Inspired by the very low lattice conductivity, other thermoelectric parameters were calculated in the following research. At a temperature of 1200 K we obtained a pretty large powe

SUBMITTER: Zhong Q 

PROVIDER: S-EPMC9070002 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature