Flexible Boron-Doped Laser-Induced Graphene Microsupercapacitors

详细信息    查看全文

• 作者：Zhiwei Peng ; Ruquan Ye ; Jason A. Mann ; Dante Zakhidov ; Yilun Li ; Preston R. Smalley ; Jian Lin ; James M. Tour
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：June 23, 2015
• 年：2015
• 卷：9
• 期：6
• 页码：5868-5875
• 全文大小：569K
• ISSN：1936-086X

文摘

Heteroatom-doped graphene materials have been intensely studied as active electrodes in energy storage devices. Here, we demonstrate that boron-doped porous graphene can be prepared in ambient air using a facile laser induction process from boric acid containing polyimide sheets. At the same time, active electrodes can be patterned for flexible microsupercapacitors. As a result of boron doping, the highest areal capacitance of as-prepared devices reaches 16.5 mF/cm², 3 times higher than nondoped devices, with concomitant energy density increases of 5鈥?0 times at various power densities. The superb cyclability and mechanical flexibility of the device are well-maintained, showing great potential for future microelectronics made from this boron-doped laser-induced graphene material.