Self-Healable and Stretchable PAAc/XG/Bi2Se0.3Te2.7 Hybrid Hydrogel Thermoelectric Materials

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外文摘要：Thermoelectric power generators have attracted increasing interest in recent years owing to their great potential in wearable electronics power supply.It is noted that thermoelectric power generators are easy to damage in the dynamic service process,resulting in the formation of microcracks and performance degradation.Herein,we prepare a new hybrid hydrogel thermoelectric material PAAc/XG/Bi2Se0.3Te2.7 by an in situ polymerization method,which shows a high stretchable and self-healable performance,as well as a good thermoelectric performance.For the sample with Bi2Se0.3Te2.7 content of 1.5 wt％(i.e.,PAAc/XG/Bi2Se0.3Te27(1.5 wt％)),which has a room temperature Seebeck coefficient of-0.45 mV K-1,and exhibits an open-circuit voltage of-17.91 mV and output power of 38.1 nW at a temperature difference of 40 K.After being completely cut off,the hybrid thermoelectric hydrogel automatically recovers its electrical characteristics within a response time of 2.0 s,and the healed hydrogel remains more than 99％of its initial power output.Such stretchable and self-healable hybrid hydrogel thermoelectric materials show promising potential for application in dynamic service conditions,such as wearable electronics.

外文关键词：

bismuth tellurideself healingthermoelectric material

作者：

Jinmeng Li、Tian Xu、Zheng Ma、Wang Li、Yongxin Qian、Yang Tao、Yinchao Wei、Qinghui Jiang、Yubo Luo、Junyou Yang

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作者单位：

State Key Laboratory of Materials Processing and Die & Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central UniversitiesGraduates'Innovation FundHuazhong University of Science and Technology

项目编号：

921632115200213751872102518020702021XXJS0082018KFYXKJC0022020yjsCXCY022

出版年：

2024

DOI：

10.1002/eem2.12547

能源与环境材料(英文)

ISSN：

年,卷(期)：2024.7(2)