Direct ink writing of fluoropolymer/CNT-based superhydrophobic and corrosion-resistant electrodes for droplet energy harvesters and self-powered electronic skins

被引:47
作者
Yang, Guisong [1 ,2 ,3 ]
Wu, Hao [4 ]
Li, Yanjie [5 ]
Wang, Dan [6 ]
Song, Yuxin [4 ]
Zhou, Yongsen [4 ]
Hao, Jinmeng [7 ]
Zi, Yunlong [8 ,9 ]
Wang, Zuankai [4 ]
Zhou, Guofu [1 ,2 ,3 ,10 ,11 ]
机构
[1] South China Normal Univ, South China Acad Adv Optoelect, Guangdong Prov Key Lab Opt Informat Mat & Technol, Guangzhou 510006, Peoples R China
[2] South China Normal Univ, South China Acad Adv Optoelect, Inst Elect Paper Displays, Guangzhou 510006, Peoples R China
[3] South China Normal Univ, Natl Ctr Int Res Green Optoelect, Guangzhou 510006, Peoples R China
[4] City Univ Hong Kong, Dept Mech Engn, Hong Kong 999077, Peoples R China
[5] Sun Yat Sen Univ, Affiliated Hosp 3, Dept Hepatobiliary Surg, Guangzhou, Guangdong, Peoples R China
[6] South China Normal Univ, Anal & Testing Ctr, Guangzhou 510006, Peoples R China
[7] Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, Sustainable Polymer Chem Grp, POB 217, NL-7500 AE Enschede, Netherlands
[8] Chinese Univ Hong Kong, Dept Mech & Automat Engn, Hong Kong, Peoples R China
[9] Chinese Univ Hong Kong, Shun Hing Inst Adv Engn, Hong Kong, Peoples R China
[10] Acad Shenzhen Guohua Optoelect, Shenzhen 518110, Peoples R China
[11] Shenzhen Guohua Optoelect Tech Co Ltd, Shenzhen 518110, Peoples R China
关键词
Direct ink writing; Superhydrophobic electrode; Triboelectric nanogenerator; Droplet electricity generator; Carbon nanotube; TRIBOELECTRIC NANOGENERATOR; SURFACE;
D O I
10.1016/j.nanoen.2021.106095
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Self-powered devices and systems that operate by harnessing environmental mechanical energies including raindrops and body motions have been extensively explored owing to their promising applications. In practical applications, these devices are often exposed to humid conditions or directly contact aqueous solutions. Here, we report the development of chemically inert and superhydrophobic electrode based on fluoropolymer (FP)/carbon-nanotube (CNT) that circumvents undesired metal electrode corrosion, deformation, and damage in harsh environments. The electrode surface can be patterned on flexible surfaces via direct ink writing (DIW), and no damage or corrosion is detected even being bent 10,000 times or immersed into salt/acid/alkaline solutions for 20 h. The integration of such robust electrodes with hydrophobic tribo-materials enables the construction of droplet-based electricity generators (DEGs) that exhibit an instantaneous current and power outputs of 2 mA and 0.12 W, respectively, and that light up 50 LEDs by one water droplet. Self-powered touch sensing function is also demonstrated on FP/CNT-based electronic skin, offering the broad applicability of the proposed electrode preparation strategy for self-powered devices.
引用
收藏
页数:9
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