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Direct Laser Writing of Flexible Planar Supercapacitors Based on GO and Black Phosphorus Quantum Dots Nanocomposites

Abstract

The research interests in wearable electronics has continuously stimulated the development of flexible energy storage systems with high performance and robustness. However, open problems with respect to energy storage efficiency and device integration are still challenging. Here, we demonstrate the laser fabrication of flexible planar supercapacitors based on graphene oxide (GO) and black phosphorus quantum dots (BPQDs) nanocomposites. By combining graphene and BPQDs, the resultant supercapacitors feature high conductivity and activity, demonstrating enhanced specific capacity and superior rate performance compared to that based on bare reduced GO (RGO). Furthermore, the as-obtained devices present outstanding flexibility. Their performance shows unobvious degradation after repeated bending and straighting deformation. Additionally, with the help of direct laser writing (DLW) technology, integration of the supercapacitors has been achieved without the need for any metal interconnection. The integrated devices delivered reasonable performance uniformity with a voltage extension of 3 V, which could easily power a LED. The supercapacitors based RGO and BPQDs nanocomposites reveal great potential for practical applications in flexible and wearable electronics.

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Publication details

The article was accepted on 09 Apr 2019 and first published on 12 Apr 2019


Article type: Paper
DOI: 10.1039/C9NR02530H
Citation: Nanoscale, 2019, Accepted Manuscript

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    Direct Laser Writing of Flexible Planar Supercapacitors Based on GO and Black Phosphorus Quantum Dots Nanocomposites

    X. Fu, Z. Chen, Y. Zhang, D. Han, J. Ma, W. Wang, Z. Zhang, H. Xia and H. Sun, Nanoscale, 2019, Accepted Manuscript , DOI: 10.1039/C9NR02530H

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