N-type core-shell heterostructured Bi2S3@Bi nanorods/polyaniline hybrids for stretchable thermoelectric generator  

作　　者：Lu Yang Chenghao Liu Yalong Wang Pengcheng Zhu Yao Wang Yuan Deng 杨璐;刘程浩;王亚龙;朱鹏程;王瑶;邓元(School of Materials Science and Engineering,Beihang University,Beijing 100191,China;Hangzhou Innovation Institute,Beihang University,Hangzhou 310052,China;Research Institute for Frontier Science,Beihang University,Beijing 100191,China;School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]School of Materials Science and Engineering,Beihang University,Beijing 100191,China [2]Hangzhou Innovation Institute,Beihang University,Hangzhou 310052,China [3]Research Institute for Frontier Science,Beihang University,Beijing 100191,China [4]School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Physics B》2022年第2期73-79,共7页中国物理B（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant Nos.2018YFA0702100 and 2018YFB0703600);the National Natural Science Foundation of China(Grant Nos.51872009 and 92066203);Beijing Nova Programme Interdisciplinary Cooperation Project;the Fundamental Research Funds for the Central Universities,China。

摘　　要：With the growing need on distributed power supply for portable electronics,energy harvesting from environment becomes a promising solution.Organic thermoelectric(TE)materials have advantages in intrinsic flexibility and low thermal conductivity,thus hold great prospect in applications as a flexible power generator from dissipated heat.Nevertheless,the weak electrical transport behaviors of organic TE materials have severely impeded their development.Moreover,compared with p-type organic TE materials,stable and high-performance n-type counterparts are more difficult to obtain.Here,we developed a n-type polyaniline-based hybrid with core-shell heterostructured Bi;S;@Bi nanorods as fillers,showing a Seebeck coefficient-159.4μV/K at room temperature.Further,a couple of n/p legs from the PANI-based hybrids were integrated into an elastomer substrate forming a stretchable thermoelectric generator(TEG),whose function to output stable voltages responding to temperature differences has been demonstrated.The in situ output performance of the TEG under stretching could withstand up to 75%elongation,and stability test showed little degradation over a one-month period in the air.This study provides a promising strategy to develop stable and high thermopower organic TEGs harvesting heat from environment as long-term power supply.

关 键 词：polyaniline-based hybrids thermoelectric properties N-TYPE stretchable electronics 

分 类 号：TM31[电气工程—电机]