Solvothermal synthesis of n-type Bi₂(Se_xTe_1-x)₃ nanoplates for high-performance thermoelectric thin films on flexible substrates.

ABSTRACT: To improve thermoelectric performance of materials, the utilization of low-dimensional materials with a multi-alloy system is a promising approach. We report on the enhanced thermoelectric properties of n-type Bi₂(Se_xTe_1-x)₃ nanoplates using solvothermal synthesis by tuning the composition of selenium (Se). Variation of the Se composition within nanoplates is demonstrated using X-ray diffraction and electron probe microanalysis. The calculated lattice parameters closely followed Vegard's law. However, when the Se composition was extremely high, an impurity phase was observed. At a reduced Se composition, regular-hexagonal-shaped nanoplates with a size of approximately 500 nm were produced. When the Se composition was increased, the shape distribu

SUBMITTER: Kimura Y 

PROVIDER: S-EPMC7156490 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature