1. CuI/Nylon Membrane Hybrid Film with Large Seebeck Effect.
- Author
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Han, Xiaowen, éź©, ć™"雯, Lu, Yiming, 陆, 怡é"-, Liu, Ying, ĺ, 莹, Wu, Miaomiao, 伍, č‹—č‹—, Li, Yating, 李, é›...ĺ©·, Wang, Zixing, 王, ĺ-ĺ...´, Cai, Kefeng, and č"ˇ, ĺ...‹ĺł°
- Subjects
SEEBECK effect ,WIDE gap semiconductors ,ELECTRICAL energy ,SEMICONDUCTOR materials ,ELECTRIC conductivity - 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 · K
â'1 at room temperature. In addition, the film also shows good flexibility (âĽ95% 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. [ABSTRACT FROM AUTHOR]- Published
- 2021
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