AgSe As a Tougher Alternative to N-type BiTe Thermoelectrics

Overview

Journal Nat Commun

Specialty Biology

Date 2024 Aug 3

PMID 39097572

Authors

Min Liu

Xinyue Zhang

Shuxian Zhang

Yanzhong Pei

Affiliations

Soon will be listed here.

Abstract

For half a century, only BiTe-based thermoelectrics have been commercialized for near room temperature applications including both power generation and refrigeration. Because of the strong layered structure, BiTe in particular for n-type conduction has to be texturized to utilize its high in-plane thermoelectric performance, leaving a substantial challenge in toughness. This work presents the fabrication and performance evaluation of thermoelectric modules based on n-type AgSe paring with commercial p-BiTe. AgSe mechanically allows an order of magnitude larger fracture strain and thermoelectrically secures the module efficiency quite competitive to that of commercial one for both refrigeration and power generation within ± 50 K of room temperature, enabling a demonstration of a significantly tougher alternative to n-type BiTe for practical applications.

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