Universal Curve of Optimum Thermoelectric Figures of Merit for Bulk and Low-Dimensional Semiconductors

Nguyen T. Hung, Ahmad R.T. Nugraha, Riichiro Saito

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper is a contribution to the Physical Review Applied collection in memory of Mildred S. Dresselhaus.Analytical formulas for thermoelectric figures of merit and power factors are derived based on the one-band model. We find that there is a direct relationship between the optimum figures of merit and the optimum power factors of semiconductors despite of the fact that the two quantities are generally given by different values of chemical potentials. By introducing a dimensionless parameter consisting of the optimum power factor and lattice thermal conductivity (without electronic thermal conductivity), it is possible to unify optimum figures of merit of both bulk and low-dimensional semiconductors into a single universal curve that covers many materials with different dimensionalities.

Original languageEnglish
Article number024019
JournalPhysical Review Applied
Volume9
Issue number2
DOIs
Publication statusPublished - 2018 Feb 20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Universal Curve of Optimum Thermoelectric Figures of Merit for Bulk and Low-Dimensional Semiconductors'. Together they form a unique fingerprint.

  • Cite this