Semiconductor glass with superior flexibility and high room temperature thermoelectric performance.

ABSTRACT: Most crystalline inorganic materials, except for metals and some layer materials, exhibit bad flexibility because of strong ionic or covalent bonds, while amorphous materials usually display poor electrical properties due to structural disorders. Here, we report the simultaneous realization of extraordinary room temperature flexibility and thermoelectric performance in Ag₂Te_1-x S _x -based materials through amorphization. The coexistence of amorphous main phase and crystallites results in exceptional flexibility and ultralow lattice thermal conductivity. Furthermore, the flexible Ag₂Te_0.6S_0.4 glass exhibits a degenerate semiconductor behavior with a room temperature Hall mobility of ~750 cm² V^-1<

SUBMITTER: He S 

PROVIDER: S-EPMC7148084 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature