Enhanced thermoelectricity by controlled local structure in bismuth-chalcogenides

Kensei Terashima, Y. Yano, E. Paris, Y. Goto, Y. Mizuguchi, Y. Kamihara, T. Wakita, Y. Muraoka, N. L. Saini, T. Yokoya

Research output: Contribution to journalArticlepeer-review

Abstract

Spectroscopic techniques, including photoelectron spectroscopy, diffuse reflectance, and x-ray absorption, are used to investigate the electronic structure and the local structure of LaOBiS2−xSex thermoelectric material. It is found that Se substitution effectively suppresses local distortion, that can be responsible for the increased carrier mobility together with a change in the electronic structure. The results suggest a possible way to control thermoelectric properties by tuning of the local crystal structure of these materials.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - Mar 28 2019

ASJC Scopus subject areas

  • General

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