Soft phonon modes from off-center Ge atoms lead to ultralow thermal conductivity and superior thermoelectric performance in n-type PbSe–GeSe

Soft phonon modes from off-center Ge atoms lead to ultralow thermal conductivity and superior thermoelectric performance in n-type PbSe–GeSe

Historically PbSe has underperformed PbTe in thermoelectric efficiency and has been regarded as an inferior relative to its telluride congener. However, the fifty-fold greater natural abundance of Se relative to Te makes PbSe appealing as a thermoelectric material. We report that the n-type GeSe-all...

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Bibliographic Details
Main Authors: Luo, Zhong-Zhen, Hao, Shiqiang, Zhang, Xiaomi, Hua, Xia, Cai, Songting, Tan, Gangjian, Bailey, Trevor P., Ma, Runchu, Uher, Ctirad, Wolverton, Chris, Dravid, Vinayak P., Yan, Qingyu, Kanatzidis, Mercouri G.
Other Authors: School of Materials Science and Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Engineering::Materials
PbSe
PbTe
Online Access:https://hdl.handle.net/10356/143787

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