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Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor

Author

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  • Hyeonwoo Kim

    (Novel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, Korea
    These authors contributed equally to this work.)

  • Suwon Hwang

    (Novel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, Korea
    These authors contributed equally to this work.)

  • Taeseung Hwang

    (Novel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, Korea)

  • Jung Bin In

    (Soft Energy Systems and Laser Applications Laboratory, School of Mechanical Engineering, Chung-Ang University, Seoul 06974, Korea
    Department of Intelligent Energy and Industry, Chung-Ang University, Seoul 06974, Korea)

  • Junyeob Yeo

    (Novel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, Korea
    Department of Hydrogen and Renewable Energy, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, Korea)

Abstract

Here, we demonstrate the fabrication of a flexible and transparent micro-supercapacitor (MSC), using colorless polyimide (CPI) via a direct laser writing carbonization (DLWC) process. The focused laser beam directly carbonizes the CPI substrate and generates a porous carbon structure on the surface of the CPI substrate. Fluorine, which is one of the chemical compositions of CPI, can enhance the specific area and the conductivity of the carbon electrode by creating micropores in carbon structures during carbonization. Thus, the fabricated carbonized CPI-based MSC shows enhanced specific capacitance (1.20 mF at 10 mV s −1 ) and better transmittance (44.9%) compared to the conventional PI-based MSC. Additionally, the fabricated carbonized CPI-based MSC shows excellent cyclic performance with minimal reduction (<~10%) in 3000 cycles and high capacitance retention under mechanical bending test conditions. Due to its high flexibility, transparency, and capacitance, we expect that carbonized CPI-based MSC can be further applied to various flexible and transparent applications.

Suggested Citation

  • Hyeonwoo Kim & Suwon Hwang & Taeseung Hwang & Jung Bin In & Junyeob Yeo, 2021. "Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor," Energies, MDPI, vol. 14(9), pages 1-11, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2547-:d:545849
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    References listed on IDEAS

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    1. Jian Lin & Zhiwei Peng & Yuanyue Liu & Francisco Ruiz-Zepeda & Ruquan Ye & Errol L. G. Samuel & Miguel Jose Yacaman & Boris I. Yakobson & James M. Tour, 2014. "Laser-induced porous graphene films from commercial polymers," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    2. Junshuang Zhou & Jie Lian & Li Hou & Junchuan Zhang & Huiyang Gou & Meirong Xia & Yufeng Zhao & Timothy A. Strobel & Lu Tao & Faming Gao, 2015. "Ultrahigh volumetric capacitance and cyclic stability of fluorine and nitrogen co-doped carbon microspheres," Nature Communications, Nature, vol. 6(1), pages 1-8, December.
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    Cited by:

    1. Adriana Petronela Chiriac & Mariana-Dana Damaceanu & Mihai Asandulesa & Daniela Rusu & Irina Butnaru, 2023. "Optimization of Nanocomposite Films Based on Polyimide–MWCNTs towards Energy Storage Applications," Energies, MDPI, vol. 16(9), pages 1-22, April.

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