Modulating structures to decouple thermoelectric transports leads to high performance in polycrystalline SnSe

Yuping Wang, Shuhua Bai,Haonan Shi, Qiong Cao,Bingchao Qin,Li‐Dong Zhao

Journal of materials chemistry. A, Materials for energy and sustainability（2023）

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摘要

Introducing AgInSe 2 modifies the crystal and band structures to facilitate electrical transport of SnSe, and Ge alloying further depresses phonon transport. The effective phonon-electron decoupling leads to an ultrahigh ZT ∼ 1.6 at 773 K.

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关键词

decouple thermoelectric transports,polycrystalline snse

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