Author:
Velasco A.,Vyas A.,Wang K.,Li Q.,Smith A. D.,Lundgren P.,Enoksson P.
Abstract
Abstract
One of the biggest applications that are coming with the Internet of Things (IoT) are miniaturized sensor networks that connect wirelessly to each other and the internet. Microsupercapacitors (MSCs) are ideal to power these devices, with large cyclability and lifetime. Porous carbons are the material of choice for these devices, but their morphology and manufacturing are far from optimized. Vertically oriented graphene MSCs have shown great promise due to their high specific surface areas and conductivity. In this work, the growth of vertically aligned carbon nanosheets (CNS) on 2-inch wafers has been studied, and it has been used as active material to manufacture MSC and transmission line model (TLM) wafers. The fabricated CNS MSC devices show a capacitance of 7.4 μF (50.7 μF/cm2, normalized to the area of the electrodes), a five-times increase from previous results obtained by the group.
Subject
General Physics and Astronomy
Reference15 articles.
1. Materials for electrochemical capacitors;Simon;Nat. Mater.,2008
2. Vertically Aligned Graphene Nanosheet Arrays: Synthesis, Properties and Applications in Electrochemical Energy Conversion and Storage;Zhang;Adv. Energy Mater.,2017
3. Wettability of vertically-oriented graphenes with different intersheet distances;Shuai;RSCAdv.,2017
4. Vertically oriented graphene bridging active-layer/current-collector interface for ultrahigh rate supercapacitors;Bo;Adv. Mater.,2013
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献