Multicolor, Fluorescent Supercapacitor Fiber

5 years ago

Multicolor, Fluorescent Supercapacitor Fiber

Jingxia Wu, Huisheng Peng, Xuemei Fu, Bingjie Wang, Hao Sun, Jing Zhang, Meng Liao, Xuemei Sun, Songlin Xie

Fiber-shaped supercapacitors have attracted broad attentions from both academic and industrial communities due to the demonstrated potentials as next-generation power modules. However, it is important while remains challenging to develop dark-environment identifiable supercapacitor fibers for enhancement on operation convenience and security in nighttime applications. Herein, a novel family of colorful fluorescent supercapacitor fibers has been produced from aligned multi-walled carbon nanotube sheets. Fluorescent dye particles are introduced and stably anchored on the surfaces of aligned multi-walled carbon nanotubes to prepare hybrid fiber electrodes with a broad range of colors from red to purple. The fluorescent component in the dye introduces fluorescent indication capability to the fiber, which is particularly promising for flexible and wearable devices applied in dark environment. In addition, the colorful fluorescent supercapacitor fibers also maintain high electrochemical performance under cyclic bending and charge-discharge processes. A novel family of colorful fluorescent supercapacitor fibers is produced from aligned multiwalled carbon nanotube sheets with high electrochemical property and good flexibility. They offer inspirations toward aesthetic and customized designs for the development of other wearable energy harvesting and storage devices.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/smll.201702052