Printable Fabrication of Nanocoral-Structured Electrodes for High-Performance Flexible and Planar Supercapacitor with Artistic Design

被引:133
作者
Lin, Yuanjing [1 ]
Gao, Yuan [1 ]
Fan, Zhiyong [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Kowloon, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
flexible devices; inkjet printing; nanocoral structures; planar supercapacitors; wearable self-powered systems; ALL-SOLID-STATE; ENERGY-STORAGE; MICRO-SUPERCAPACITORS; ELECTROCHEMICAL CAPACITORS; NANOPOROUS STRUCTURES; MICROSUPERCAPACITORS; CARBON; FILM; ARRAYS; OXIDE;
D O I
10.1002/adma.201701736
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Planar supercapacitors with high flexibility, desirable operation safety, and high performance are considered as attractive candidates to serve as energy-storage devices for portable and wearable electronics. Here, a scalable and printable technique is adopted to construct novel and unique hierarchical nanocoral structures as the interdigitated electrodes on flexible substrates. The as-fabricated flexible all-solid-state planar supercapacitors with nanocoral structures achieve areal capacitance up to 52.9 mF cm(-2), which is 2.5 times that of devices without nanocoral structures, and this figure-of-merit is among the highest in the literature for the same category of devices. More interestingly, due to utilization of the inkjet-printing technique, excellent versatility on electrode-pattern artistic design is achieved. Particularly, working supercapacitors with artistically designed patterns are demonstrated. Meanwhile, the high scalability of such a printable method is also demonstrated by fabrication of large-sized artistic supercapacitors serving as energy-storage devices in a wearable self-powered system as a proof of concept.
引用
收藏
页数:8
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