期刊
APPLIED SURFACE SCIENCE
卷 480, 期 -, 页码 671-679出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.02.231
关键词
Laser irradiated GO; Porous structure; Flexible hybrid electrode; Wearable electronic device
类别
资金
- Solar Energy Research Initiative-Department of Science and Technology (SERI-DST) [DST/TMD/SERI/S170(G)]
- Science and Engineering Research Board-Department of Science and Technology (SERB-DST) [EMR/2014/000645]
- Ministry of New and Renewable Energy (MNRE), New Delhi, India [103/239/2015-NT]
Materials with a porous structure and high surface area have gained tremendous research interests in the design of advanced high energy density supercapacitors because of their great capacitance and chemical stability. Herein, an effective method is introduced to achieve a large-scale production of porous graphene network by laser irradiation of graphene oxide films with a short span of time. Interestingly, this method introduces a porous structure, high surface area and promising electrochemical properties which significantly enhances the reversible capacitance behaviour. Notably, laser irradiated graphene oxide films electrodes show excellent areal capacitance of 149.7 mF cm(-2) at 3 mV s(-1) with a maximum energy density of 7.5 mWhcm(-3). Also, these electrodes demonstrate an outstanding cycling stability, which retains above 85% capacitance of its initial capacitance after 5000 charge-discharge cycles shows a significant enhancement over other values reported in the literature. Furthermore, the bending tests confirms that the superior flexible performance of the laser irradiated graphene oxide electrodes holds a great potential for the development of wearable electronic devices.
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