Revealing self-aligned γ-SnTe ultrathin nanosheets in thermoelectric ß-SnTe.
Nanoscale
; 13(36): 15205-15209, 2021 Sep 23.
Article
em En
| MEDLINE
| ID: mdl-34486641
An atomic-scale understanding of nanoscale precipitates in thermoelectric materials will help us explore their microstructure-property relationship, providing a strategy to optimize their thermoelectric properties. In thermoelectric ß-SnTe, using advanced electron microscopy techniques, self-aligned nanoscale precipitates have been identified as γ-SnTe ultrathin nanosheets that induce anisotropic strain in the ß-SnTe matrix. The interlayer van der Waals interactions occur across the interface of γ-SnTe ultrathin nanosheets and the ß-SnTe matrix. The phase transition from γ-SnTe ultrathin nanosheets to ß-SnTe can be accomplished by in situ electron-beam irradiation that lays out an approach for tuning the properties of SnTe-based thermoelectric materials.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Nanoscale
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China