Nanocomposites from Solution‐Synthesized PbTe‐BiSbTe Nanoheterostructure with Unity Figure of Merit at Low‐Medium Temperatures (500–600 K). Issue 10 (13th January 2017)

• Record Type: Journal Article
• Authors: Xu, Biao; Agne, Matthias T.; Feng, Tianli; Chasapis, Thomas C.; Ruan, Xiulin; Zhou, Yilong; Zheng, Haimei; Bahk, Je‐Hyeong; Kanatzidis, Mercouri G.; Snyder, Gerald Jeffrey; Wu, Yue
• Is Part Of: Advanced materials. Volume 29:Issue 10(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-01-13
• Subjects: nanocomposites -- nanoheterostructures -- solution synthesis -- thermoelectric; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201605140
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : A scalable, low‐temperature solution process is used to synthesize precursor material for Pb‐doped Bi0.7 Sb1.3 Te3 thermoelectric nanocomposites. The controllable Pb‐doping leads to the increase in the optical bandgap, thus delaying the onset of bipolar conduction. Furthermore, the solution synthesis enables nanostructuring, which greatly reduces thermal conductivity. As a result, this material exhibits a zT = 1 over the 513–613 K range.