Heterostructured Bismuth Telluride Selenide Nanosheets for Enhanced Thermoelectric Performance.

ABSTRACT: The n-type semiconductor system Bi₂Te₃-Bi₂Se₃ is known as a low-temperature thermoelectric material with a potentially high efficiency. Herein, a facile approach is reported to synthesize core/shell heterostructured Bi₂Te₂Se/Bi₂Te₃ nanosheets (NSs) with lateral dimensions of 1-3 μm and thickness of about 50 nm. Bi₂Te₃ and Bi₂Se₃, as well as heterostructured Bi₂Te₂Se/Bi₂Te₃ NSs are obtained via colloidal synthesis. Heterostructured NSs show an inhomogeneous distribution of the chalcogen atoms forming selenium and tellurium-rich layers across the NS thickness, resulting in a core/shell structure. Detailed morphological

SUBMITTER: Bauer C 

PROVIDER: S-EPMC11935927 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature