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Proceedings Paper

Photonic nanomanufacturing of high performance energy device on flexible substrate
Author(s): Yongchao Yu; Shutong Wang; Ruozhou Li; Tingxiu Hou; Min Chen; Anming Hu
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Paper Abstract

With the developing of wearable electronics and information society, integrated energy storage devices are urgently demanded to be integrated on flexible substrates. We successfully demonstrated using direct laser-reduction of the hydrated GO and chloroauric acid (HAuCl4) nanocomposite to fabricate in-plane micro-supercapacitors (MSCs) with fast ion diffusion on paper. The electrode conductivity of these flexible nanocomposites reaches up to 1.1 x 106 S m-1, which enhances superior rate capability of micro-supercapacitors, and large specific capacitances of 0.77 mF cm-2 (17.2 F cm-3 for volumetric capacitance) at 1 V s-1, and 0.46 mF cm-2 (10.2 F cm-3) at 100 V s-1. We also have demonstrated that pulsed laser irradiation rapidly converts the polyimide (PI) sheets into an electrically conductive porous carbon structure in ambient conditions. The specific capacitance of single layer surface supercapacitors can reach 20.4 mF/cm2 at 0.1 mA/cm2 discharge current density. Furthermore, we successfully fabricate the multi-layer supercapacitor with the PI substrate using 3D femtosecond laser direct writing, and the specific capacitances of three layers supercapacitors is 37.5 mF/cm2.

Paper Details

Date Published: 17 February 2017
PDF: 9 pages
Proc. SPIE 10092, Laser-based Micro- and Nanoprocessing XI, 100920R (17 February 2017); doi: 10.1117/12.2253145
Show Author Affiliations
Yongchao Yu, The Univ. of Tennessee Knoxville (United States)
Shutong Wang, The Univ. of Tennessee Knoxville (United States)
Sichuan Univ. (China)
Ruozhou Li, The Univ. of Tennessee Knoxville (United States)
Tingxiu Hou, Beijing Univ. of Technology (China)
Min Chen, The Univ. of Tennessee Knoxville (United States)
Shandong Univ. (China)
Anming Hu, The Univ. of Tennessee Knoxville (United States)
Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10092:
Laser-based Micro- and Nanoprocessing XI
Udo Klotzbach; Kunihiko Washio; Rainer Kling, Editor(s)

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