Enhanced thermoelectric figure of merit in nanostructured ZnO by nanojunction effect

被引：20
|
作者：
Wu, Zi-Hua [1 ]
Xie, Hua-Qing [1 ]
Zhai, Yong-Biao [2 ]
机构：
[1] Shanghai Second Polytech Univ, Sch Urban Dev & Environm Engn, Shanghai 201209, Peoples R China
[2] Shanghai Yueda New Mat Sci & Technol Ltd, Shanghai 201209, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 24期
基金：
中国国家自然科学基金;
关键词：
NANOCOMPOSITES; PERFORMANCE; EFFICIENCY; AG;
D O I：
10.1063/1.4842035
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report in this letter the synthesis and thermoelectric properties of Zn1-xNixO/polyparaphenylene (Zn1-xNixO/PPP) organic-inorganic hybrid materials. Compared to the inorganic ZnO-based materials, hybrid materials exhibit dual effects of increased power factor consistent with the molecular junction effect and a reduction in thermal conductivity by the incorporation of conductive PPP. As a result, the greatest ZT = 0.54 of hybrid materials was obtained at 1173 K, which corresponds to a 6-fold enhancement compared to that of the best inorganic Zn0.97Ni0.03O sample (ZT = 0.09) at 1000 K. (C) 2013 AIP Publishing LLC.
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