Intrinsically High Thermoelectric Performance in AgInSe₂ n-Type Diamond-Like Compounds.

ABSTRACT: Diamond-like compounds are a promising class of thermoelectric materials, very suitable for real applications. However, almost all high-performance diamond-like thermoelectric materials are p-type semiconductors. The lack of high-performance n-type diamond-like thermoelectric materials greatly restricts the fabrication of diamond-like material-based modules and their real applications. In this work, it is revealed that n-type AgInSe₂ diamond-like compound has intrinsically high thermoelectric performance with a figure of merit (zT) of 1.1 at 900 K, comparable to the best p-type diamond-like thermoelectric materials reported before. Such high zT is mainly due to the ultralow lattice thermal conductivity, which is fundamentally limited by the low-frequency Ag-Se "clu

SUBMITTER: Qiu P 

PROVIDER: S-EPMC5867058 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature