title: Flexible Boron-Doped Laser-Induced Graphene Microsupercapacitors.
abstract: 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/cm(2), 3 times higher than nondoped devices, with concomitant energy density increases of 5-10 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.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Peng
authors.forename: Ruquan
authors.initials: R
authors.lastname: Ye
authors.forename: Jason A
authors.initials: JA
authors.lastname: Mann
authors.forename: Dante
authors.initials: D
authors.lastname: Zakhidov
authors.forename: Yilun
authors.initials: Y
authors.lastname: Li
authors.affiliation: ⊥Second Baptist School, 6410 Woodway Drive, Houston, Texas 77057, United States.
authors.forename: Preston R
authors.initials: PR
authors.lastname: Smalley
authors.forename: Jian
authors.initials: J
authors.lastname: Lin
authors.forename: James M
authors.initials: JM
authors.lastname: Tour
keywords: boron-doped; energy storage; flexible; graphene; laser induction; microsupercapacitor; porous graphene