# Nanostructured Thermoelectric Films Synthesised by Spark Ablation and Their Oxidation Behaviour

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- Authors: Hendrik Joost van Ginkel, Lisa Mitterhuber, Marijn Willem van de Putte, Mark Huijben, Sten Vollebregt, Guoqi Zhang
- Journal: Nanomaterials
- Year: 2023
- Volume: 13
- Pages: 1778
- DOI: 10.3390/nano13111778
- Instrument used: openQCM 1

## Abstract

Reducing the thermal conductivity of thermoelectric materials has been a field of intense research to improve the efficiency of thermoelectric devices. One approach is to create a nanostructured thermoelectric material that has a low thermal conductivity due to its high number of grain boundaries or voids, which scatter phonons. Here, we present a new method based on spark ablation nanoparticle generation to create nanostructured thermoelectric materials, demonstrated using Bi₂Te₃. The lowest achieved thermal conductivity was

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