Highly Conductive Hydrogel Polymer Fibers toward Promising Wearable Thermoelectric Energy Harvesting

被引:146
作者
Liu, Jing [1 ]
Jia, Yanhua [1 ]
Jiang, Qinglin [1 ]
Jiang, Fengxing [1 ]
Li, Changcun [1 ]
Wang, Xiaodong [1 ]
Liu, Peng [1 ]
Liu, Peipei [1 ,4 ]
Hu, Fei [2 ]
Du, Yukou [3 ]
Xu, Jingkun [1 ,4 ]
机构
[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Engn Lab Waterborne Coatings, Nanchang 330013, Jiangxi, Peoples R China
[2] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China
[3] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
[4] Qingdao Univ Sci & Technol, Sch Chem & Mol Engn, Qingdao 266042, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
PEDOT:PSS; gelation; thermoelectric fiber; energy harvesting; fiber device; THIN-FILM; HIGH-PERFORMANCE; ENHANCEMENT; TECHNOLOGIES; GENERATOR; ORIGIN; STATE; HEAT;
D O I
10.1021/acsami.8b15332
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The requirement of a portable electron is functioning as a driving force for a wearable energy instrument. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), as one of the most promising organic electron materials, has been widely studied in energy conversion devices. However, the efforts for PEDOT:PSS fibers are insufficient to boost the development of wearable thermoelectric energy harvesting. Here, a highly conductive p-type PEDOT:PSS fiber was produced by gelation process, which was 3 orders of magnitude higher than that of previous hydrogel fibers. Surprisingly, a post-treatment with organic solvents such as ethylene glycol and dimethyl sulfoxide tripled their electrical conductivity with an only 5% decreased Seebeck coefficient, consequently leading to an optimized thermoelectric power factor. Furthermore, we assembled a p-n-type thermoelectric device connecting five pairs of p-type PEDOT:PSS fibers and n-type carbon nanotube fibers. This fiber-based device displayed an acceptable output voltage of 20.7 mV and a power density of 481.2 mu W.cm(-2) with a temperature difference of similar to 60 K, which might pave the way for the development of organic thermoelectric fibers for wearable energy harvesting.
引用
收藏
页码:44033 / 44040
页数:8
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