Bulk and Nanocomposite Thermoelectrics: Synthesis, Properties, and Applications

Mustafa Shalaby, Salwa Hamdy, Ishtihadah Islam, Kulwinder Kaur, Aamer Nazir, Shakeel Ahmad Khandy

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review

Abstract

Being a possible solution to avoid many environmental, political and economic issues, thermoelectric materials have been widely investigated for their ability to convert heat into electricity in the recent past as well as their benefit in reducing the dependence on fossil fuels. In this review we tried to highlight the challenges and possible strategies to synthesize efficient thermoelectric materials. The performance of thermoelectric power harvesting systems or thermoelectric generators (TEGs) relies on the improvement of the overall figure of merit (ZT) and the output power. Nanocomposite thermoelectrics display a vibrant augmentation of ZT and the strain engineering or band manipulation in bulk thermoelectrics prospect from the overall increase in efficiency of the TEGs. In this chapter, we will discuss the processing and feasible properties of the different nanocomposite and bulk thermoelectric systems. The physical or chemical methods of nanocomposite/bulk synthesis methods will be discussed, and the theoretical background of intrinsic transport coefficients will be highlighted in this regard. The possibilities of enhancement of the efficiency can be viewed in nanocomposites with special microstructures, which in turn scatter the phonons to minimize thermal conductivity while preserving or increasing the electrical conductivity and the Seebeck coefficient simultaneously. The benefits of these nanocomposites are to enhance ZT by 10–100% and increase the efficiency of thermoelectric devices. In the end, the future perspectives, developments, and challenges of bulk/nanocomposite thermoelectrics are put forward thoroughly.

Original languageEnglish
Title of host publicationEngineering Materials
PublisherSpringer Science and Business Media B.V.
Pages959-1016
Number of pages58
DOIs
Publication statusPublished - 3 Mar 2022
Externally publishedYes

Publication series

NameEngineering Materials
ISSN (Print)1612-1317
ISSN (Electronic)1868-1212

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

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