General method of synthesis ultrathin ternary metal chalcogenide nanowires for potential thermoelectric applications

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• 作者：Chongjian Zhou^a ; ¹Author Vitae ; Chaochao Dun^c ; ¹Author Vitae ; Ke Wang^aAuthor Vitae ; Xia Zhang^aAuthor Vitae ; Zhongqi Shi^a ; ^{zhongqishi@mail.xjtu.edu.cn}Author Vitae ; Guiwu Liu^b ; ^{gwliu76@mail.ujs.edu.cn}Author Vitae ; Corey A. Hewitt^cAuthor Vitae ; Guanjun Qiao^a ; ^bAuthor Vitae ; David L. Carroll^c ; ^{carroldl@wfu.edu}Author Vitae
• 关键词：Ternary metal chalcogenide ; Composition tunable ; Ultrathin 1D nanowire ; Thermoelectric generator ; Nanowire-nanowire heterogeneous junctions
• 刊名：Nano Energy
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：30
• 期：Complete
• 页码：709-716
• 全文大小：1379 K
• 卷排序：30

文摘

A general method for synthesis of ternary metal chalcogenide nanowires was proposed. Ultrathin nanowires (<20 nm) were achieved, which are the thinnest so far. Thermoelectric figure of merit as high as 0.75 was obtained by solution-based approach. Energy barrier between nanowire-nanowire heterogeneous junctions was confirmed. Guidelines for improving further thermoelectric were suggested.