CuI/Nylon Membrane Hybrid Film with Large Seebeck Effect
Xiaowen Han, Yiming Lu, Ying Liu, Miaomiao Wu, Yating Li, Zixing Wang, and Kefeng Cai*
Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), Shanghai Key Laboratory of Development and Application for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
Abstract ：Room-temperature thermoelectric materials are important for converting heat into electrical energy. As a wide-bandgap semiconductor material, CuI has the characteristics of non-toxicity, low cost, and environmental friendliness. In this work, CuI powder was synthesized by a wet chemical method, then CuI film was formed by vacuum assisted filtration of the CuI powder on a porous nylon membrane, followed by hot pressing. The film exhibits a large Seebeck coefficient of 600 µV$\cdot$K$^{-1}$ at room temperature. In addition, the film also shows good flexibility ($\sim $95% retention of the electrical conductivity after being bent along a rod with a radius of 4 mm for 1000 times). A finger touch test on a single-leg TE module indicates that a voltage of 0.9 mV was immediately generated within 0.5 s from a temperature difference of 4 K between a finger and the environment, suggesting the potential application in wearable thermal sensors.
收稿日期: 2021-08-30
出版日期: 2021-11-27
引用本文:
. [J]. 中国物理快报, 2021, 38(12): 126701-.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/38/12/126701
或
https://cpl.iphy.ac.cn/CN/Y2021/V38/I12/126701
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2021, Vol. 38 
