Enhanced thermoelectricity by controlled local structure in bismuth-chalcogenides

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

Research output: Contribution to journalArticle

2 Citations (Scopus)


Spectroscopic techniques, including photoelectron spectroscopy, diffuse reflectance, and x-ray absorption, are used to investigate the electronic structure and the local structure of LaOBiS 2 - xSe x 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
Article number145105
JournalJournal of Applied Physics
Issue number14
Publication statusPublished - Apr 14 2019


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this