基于纸质基体的铅笔画-沉积聚吡咯方法制备高性能固态超级电容器

华中科技大学的高义华教授课题组以复印纸为基底制备了一种高性能柔性全固态高级电容器。其电流输送时基于一种铅笔画出的可折叠电路。这种在纸上由铅笔画出的石墨片可提供有效的低电阻(95 Ω sq-1)电流传输通道,而覆盖在铅笔画表明的导电聚合物PPy可作为器件的电极材料。该器件在扫描速率1 mV s-1下的比容量高达52.9 F cm-3。本研究给出一种简便、通用、经济的纸基柔性器件的制备思路。

研究结果发表于Nano-Micro Letters上2015年第7卷第期。

全文链接http://dx.doi.org/10.1007/s40820-015-0039-3
文章引用信息:

Jiayou Tao, Wenzhen Ma, Nishuang Liu, Xiaoliang Ren, Yuling Shi, Jun Su, Yihua Gao,High-Performance Solid-State Supercapacitors Fabricated by Pencil Drawing and Polypyrrole Depositing on Paper Substrate,Nano-Micro Lett. Nano-Micro Lett. (2015) 7: 276. http://dx.doi:10.1007/s40820-015-0039-3

Fig. 1 (a) Schematic of fabrication process of the PPy-G-paper. (b) A SEM image of the G-paper.(c) A cross-sectional SEM image of the G-paper. (d) A SEM image of PPy-G-paper. (e) A cross-sectional SEM image of the PPy-G-paper. (f) XRD of the G-paper illustrating the graphite.(g) Raman spectra of the G-paper and PPy-G-paper.

Fig. 2 (a) The resistance measurement of the G-paper (width of the stripe is 0.5 cm) at different lengths. (b) The application of driving an LED with the G-paper circuit. (c) To drive an LED by the G-paper circuit under negative and positive angle folding. (d) The sheet resistance of PPy-G-paper at different PPy deposition times.

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