Recent progress in phosphide materials for thermoelectric conversion

Robert J. Quinn, Jan-Willem G. Bos*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

4 Citations (Scopus)
24 Downloads (Pure)

Abstract

Thermoelectric materials allow for the interconversion of heat and electricity. Rapid progress has been made in materials performance but there is a continuing need for the exploration of new materials and disruptive thermoelectric effects. Metal phosphides are currently gaining increasing attention as potential thermoelectric materials. Structural complexity often leads to low thermal conductivity despite the low atomic mass of P, which underpins promising thermoelectric figures of merit, zT. Despite the ability of phosphorus to form strong covalent bonds, including polyanion bonding, a key challenge remains to embed better electrical properties and large power factors. A highest zT = 0.9 has been observed in n-type Cd3P2, whilst promising performance under applied fields has been observed in topological materials, e.g. in the Dirac metal TaP. In this review, we summarise recent materials developments and analyse some of the underlying thermoelectric parameters of metal phosphide materials.
Original languageEnglish
Pages (from-to)8453-8469
Number of pages17
JournalJournal of Materials Chemistry A
Volume11
Issue number16
Early online date31 Mar 2023
DOIs
Publication statusPublished - 28 Apr 2023

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