Simultaneous improvement in electron transport and phonon scattering properties in Bi₂Te₃:Si nanocomposite thin films: Role of a conducting secondary phase

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• 作者：Khushboo Agarwal ; Deepak Varandani ; B.R. Mehta ; ^{brmehta@physics.iitd.ac.in}
• 关键词：Bi2Te3 ; Nanocomposite ; Thermoelectric property ; SThM
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 March 2017
• 年：2017
• 卷：698
• 期：Complete
• 页码：1058-1065
• 全文大小：2258 K
• 卷排序：698

文摘

Different concentrations of Si were incorporated in Bi2Te3 thin films. Nanoscale and macroscale thermoelectric properties of Bi2Te3 and Bi2Te3/Si nanocomposite were studied. Interfacial Silicon strongly affects thermal and electrical properties of Bi2Te3. Bi2Te3/Si with optimized Si concentration, shows highest value of ZT ∼1.45.