Investigating the Stability of Cu₂Se Superionic Thermoelectric Material in Air Atmosphere.

ABSTRACT: Copper selenide (Cu₂Se) has garnered significant attention as an exceptional thermoelectric material due to its high thermoelectric figure of merit (ZT values > 2). This remarkable efficiency makes it a strong candidate for various applications. However, the practical deployment of thermoelectrics often requires operation in an oxygen-containing atmosphere, which poses a significant challenge for Cu₂Se due to its environmental instability. This work investigates the environmental behavior of high-purity Cu₂Se, which was synthesized via a direct high-temperature reaction and spark plasma sintering (SPS). Our Temperature-Programmed Oxidation (TPO) studies determined that the onset of oxidation occurs at a temperature as low as 623 K. Further analysis u

SUBMITTER: Nieroda P 

PROVIDER: S-EPMC12430787 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature