Simultaneous Enhancement of Electrical Conductivity and Thermopower of Bi₂Te₃ by Multifunctionality of Native Defects

Simultaneous Enhancement of Electrical Conductivity and Thermopower of Bi₂Te₃ by Multifunctionality of Native Defects

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 27(2015), 24 vom: 24. Juni, Seite 3681-6
1. Verfasser: Suh, Joonki (VerfasserIn)
Weitere Verfasser: Yu, Kin Man, Fu, Deyi, Liu, Xinyu, Yang, Fan, Fan, Jin, Smith, David J, Zhang, Yong-Hang, Furdyna, Jacek K, Dames, Chris, Walukiewicz, Wladyslaw, Wu, Junqiao
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Bi2Te3 defect engineering native point defects particle irradiation thermoelectric properties
Beschreibung
Zusammenfassung:© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Simultaneous increases in electrical conductivity (up to 200%) and thermopower (up to 70%) are demonstrated by introducing native defects in Bi2 Te3 films, leading to a high power factor of 3.4 × 10(-3) W m(-1) K(-2). The maximum enhancement of the power factor occurs when the native defects act beneficially both as electron donors and energy filters to mobile electrons. They also act as effective phonon scatterers
Beschreibung:Date Completed 18.08.2015
Date Revised 30.09.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201501350