A large-area bionic skin for high-temperature energy harvesting applications  

作　　者：Zhaojun Liu Bian Tian Yao Li Jiaming Lei Zhongkai Zhang Jiangjiang Liu Qijing Lin Chengkuo Lee Zhuangde Jiang 

机构地区：[1]State Key Laboratory for Mechanical Manufacturing Systems Engineering,School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049,China [2]Department of Electrical&Computer Engineering,National University of Singapore,Singapore 117576,Singapore [3]Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing,Yantai 265503,China

出　　处：《Nano Research》2023年第7期10245-10255,共11页纳米研究（英文版）

基　　金：This work was supported by the National Key Research and Development Program of China(No.2020YFB2009100);the Natural Science Basic Research Program of Shaanxi(No.2022JQ-508);the National Science and Technology Major Project(No.J2019-V-0006-0100);the Open research fund of SKLMS(No.sklms2021009);Zhaojun Liu received the China Scholarship Council Fund(No.202206280155)for his research stay at National University of Singapore.

摘　　要：For the large amount of waste heat wasted in daily life and industrial production,we propose a new type of flexible thermoelectric generators(F-TEGs)which can be used as a large area bionic skin to achieve energy harvesting of thermal energy.With reference to biological structures such as pinecone,succulent,and feathers,we have designed and fabricated a biomimetic flexible TEG that can be applied in a wide temperature range which has the highest temperature energy harvesting capability currently.The laminated free structure of the bionic F-TEG dramatically increases the efficiency and density of energy harvesting.The F-TEGs(single TEG only 101.2 mg in weight),without an additional heat sink,demonstrates the highest output voltage density of 286.1 mV/cm^(2)and the maximum power density is 66.5 mW/m^(2) at a temperature difference of nearly 1000℃.The flexible characteristics of F-TEGs make it possible to collect the diffused thermal energy by flexible attachment to the outer walls of high-temperature pipes and vessels of different diameters and shapes.This work shows a new design and application concept for flexible thermal energy collectors,which fills the gap of flexible energy harvesting in high-temperature environment.

关 键 词：bionic structure high-temperature FLEXIBLE thermoelectric generators(TEGs) 

分 类 号：TB383[一般工业技术—材料科学与工程]