Preparation of Heavily Doped P-Type PbSe with High Thermoelectric Performance by the NaCl Salt-Assisted Approach.

ABSTRACT: Thermoelectric (TE) technology, which can convert scrap heat into electricity, has attracted considerable attention. However, broader applications of TE are hindered by lacking high-performance thermoelectric materials, which can be effectively progressed by regulating the carrier concentration. In this work, a series of PbSe(NaCl)_x (x = 3, 3.5, 4, 4.5) samples were synthesized through the NaCl salt-assisted approach with Na⁺ and Cl^- doped into their lattice. Both theoretical and experimental results demonstrate that manipulating the carrier concentration by adjusting the content of NaCl is conducive to upgrading the electrical transport properties of the materials. The carrier concentration elevated from 2.71 × 10¹⁹ cm^-3 to 4.16 × 10<

SUBMITTER: Ma X 

PROVIDER: S-EPMC10051061 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature