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Title: Ultralow Thermal Conductivity in Cs–Sb–Se Compounds: Lattice Instability versus Lone-Pair Electrons

Journal Article · · Chemistry of Materials

Lone-pair electrons (LPE) are known to lead to large anharmonicity in materials and thus to low lattice thermal conductivity (k). Materials with LPE typically have lower k than those with similar compositions but without LPE. In this study, we investigate thermal transport properties in Cs-Sb-Se ternary compounds by first principles methods and show that LPE do not necessarily guarantee the lowest k.

Research Organization:
Univ. of Missouri, Columbia, MO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019114
OSTI ID:
1691488
Journal Information:
Chemistry of Materials, Vol. 32, Issue 20; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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