Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 18, Pages 8299-8306Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta00089a
Keywords
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Funding
- NSFC [11504111, 61574060]
- Projects of Science and Technology Commission of Shanghai Municipality [15JC1401800, 14DZ2260800]
- Program for Professor of Special Appointment (Eastern Scholar)
- Shanghai Rising-Star Program [17QA1401400]
- Open Research Fund of Shanghai Key Laboratory of Multidimensional Information Processing, East China Normal University [40500-10203-542500/019/004]
- Fundamental Research Funds for the Central Universities
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Metallic two-dimensional (2D) 1T-VSe2 with high conductivity and a large specific surface area is a promising electrode material for supercapacitors. Here, we use a facile chemical vapor deposition (CVD) method to prepare thin VSe2 nanosheets. A flexible in-plane solid-state supercapacitor is fabricated using the high-quality VSe2 nanosheets as the electrode material. The prepared supercapacitor presents an electrical double-layer capacitive behavior, and it has a high power density that is comparable with that of advanced graphene-based supercapacitors. The flexible supercapacitor also shows good mechanical stability to both bending and fatigue tests up to 10 000 cycles. This work provides a novel method for the fabrication of high-performance thin-film power sources, and paves the way for their application in soft thin-geometry devices.
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