Thermoelectric properties of sulfide and selenide-based materials

Vaskuri C.S. Theja, Vaithinathan Karthikeyan, Jamal Deen Musah, Chi Man Lawrence Wu, Vellaisamy A.L. Roy

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Citations (Scopus)

Abstract

Research into thermoelectricity is rapidly moving toward attaining higher power conversion efficiency using eco-friendly materials. In recent years, metal sulfide and selenides are established as potential thermoelectric materials to replace traditional tellurium-based materials with the advantage of facile material processing and excellent tunable band structure. These compounds complex crystal structure, native defects, and low covalent nature contribute to high power factor and ultralow lattice thermal conductivity. However, structural optimization needed to attain perfect phonon-glass electron-crystal behavior remains a significant challenge. This chapter discusses the recent developments of metal sulfide and selenide-based thermoelectric materials through nanoengineering, defect engineering, and structural engineering to improve thermoelectric efficiency. This chapter also provides a clear insight into the optimization strategies and their impact on enhancing the figure-of-merit of sulfide and selenide-based materials.

Original languageEnglish
Title of host publicationSulfide and Selenide Based Materials for Emerging Applications
Subtitle of host publicationSustainable Energy Harvesting and Storage Technology
Pages293-328
Number of pages36
ISBN (Electronic)9780323998604
DOIs
Publication statusPublished - 1 Jan 2022
Externally publishedYes

Keywords

  • Carrier scattering
  • Chalcogenides
  • Figure-of-merit
  • Phonon engineering
  • Selenides
  • Sulfides
  • Thermal conductivity
  • Thermoelectric materials

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