Photonic nanomanufacturing of high performance energy device on flexible substrate

Yongchao Yu; Shutong Wang; Ruozhou Li; Tingxiu Hou; Min Chen; Anming Hu

doi:10.1117/12.2253145

17 February 2017 Photonic nanomanufacturing of high performance energy device on flexible substrate

Yongchao Yu, Shutong Wang, Ruozhou Li, Tingxiu Hou, Min Chen, Anming Hu

Proceedings Volume 10092, Laser-based Micro- and Nanoprocessing XI; 100920R (2017) https://doi.org/10.1117/12.2253145
Event: SPIE LASE, 2017, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Yongchao Yu, Shutong Wang, Ruozhou Li, Tingxiu Hou, Min Chen, and Anming Hu "Photonic nanomanufacturing of high performance energy device on flexible substrate", Proc. SPIE 10092, Laser-based Micro- and Nanoprocessing XI, 100920R (17 February 2017); https://doi.org/10.1117/12.2253145

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