Achieving zT > 2 in p‐Type AgSbTe2−xSex Alloys via Exploring the Extra Light Valence Band and Introducing Dense Stacking Faults

Through simultaneously enhancing the power factor by engineering the extra light band and enhancing phonon scatterings by introducing a high density of stacking faults, a record figure‐of‐merit over 2.0 is achieved in p‐type AgSbTe2−xSex alloys. Density functional theory calculations confirm the pre...

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Veröffentlicht in:	Advanced energy materials 2018-03, Vol.8 (9), p.n/a
Hauptverfasser:	Hong, Min, Chen, Zhi‐Gang, Yang, Lei, Liao, Zhi‐Ming, Zou, Yi‐Chao, Chen, Yan‐Hui, Matsumura, Syo, Zou, Jin
Format:	Artikel
Sprache:	eng
Schlagworte:	AgSbTe2−xSex alloys Crystal defects Density functional theory Electron microscopy Electrons engineering light valence band Grain boundaries Point defects Power factor Silver antimony telluride stacking fault phonon scattering Thermal conductivity thermoelectric Valence band
Online-Zugang:	Volltext
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