Directly deposited MoS2 thin film electrodes for high performance supercapacitors

Title
Directly deposited MoS2 thin film electrodes for high performance supercapacitors
Authors
N. ChoudharyM. PatelY.H. HoN.B. Dahotre이원기황준연W. Choi
Keywords
MoS2; Supercapacitor; TEM; thin film
Issue Date
2015-12
Publisher
Journal of materials chemistry. A, Materials for energy and sustainability
Citation
VOL 3, NO 47, 24049-24054
Abstract
Two dimensional (2D) layered materials have recently attracted significant research interest owing to their unique physical and chemical properties for efficient electrochemical energy storage devices. Here, we present a neoteric approach to fabricate high performance MoS2 thin film supercapacitor electrodes by using a direct magnetron sputtering technique. The novel three-dimensional (3D) porous structure of the MoS2 film exhibits an excellent capacitance of similar to 330 F cm(-3) along with a high volumetric power and energy density of 40-80 W cm(-3) and 1.6-2.4 mW h cm(-3), respectively. Moreover, the optimized MoS2 electrode shows an outstanding cyclic stability, yielding capacitance retention over 97% after 5000 cycles of charging/discharging. The contemporary approach to MoS2 supercapacitor electrode fabrication will enable new opportunities in flexible electronic and energy devices.
URI
http://pubs.kist.re.kr/handle/201004/58417
ISSN
20507488
Appears in Collections:
KIST Publication > Article
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