Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor
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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/9/2547 |
| _version_ | 1797535837126131712 |
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| author | Hyeonwoo Kim Suwon Hwang Taeseung Hwang Jung Bin In Junyeob Yeo |
| author_facet | Hyeonwoo Kim Suwon Hwang Taeseung Hwang Jung Bin In Junyeob Yeo |
| author_sort | Hyeonwoo Kim |
| collection | DOAJ |
| description | 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<sup>−1</sup>) 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. |
| first_indexed | 2024-03-10T11:50:59Z |
| format | Article |
| id | doaj.art-46c4359edb804a17ba73e5b3cf395ebc |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T11:50:59Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-46c4359edb804a17ba73e5b3cf395ebc2023-11-21T17:42:33ZengMDPI AGEnergies1996-10732021-04-01149254710.3390/en14092547Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-SupercapacitorHyeonwoo Kim0Suwon Hwang1Taeseung Hwang2Jung Bin In3Junyeob Yeo4Novel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, KoreaNovel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, KoreaNovel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, KoreaSoft Energy Systems and Laser Applications Laboratory, School of Mechanical Engineering, Chung-Ang University, Seoul 06974, KoreaNovel Applied Nano Optics Lab., Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, KoreaHere, 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<sup>−1</sup>) 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.https://www.mdpi.com/1996-1073/14/9/2547laserdirect laser writing carbonizationcolorless polyimideelectric double-layer capacitorflexible and transparent micro-supercapacitor |
| spellingShingle | Hyeonwoo Kim Suwon Hwang Taeseung Hwang Jung Bin In Junyeob Yeo Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor Energies laser direct laser writing carbonization colorless polyimide electric double-layer capacitor flexible and transparent micro-supercapacitor |
| title | Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor |
| title_full | Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor |
| title_fullStr | Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor |
| title_full_unstemmed | Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor |
| title_short | Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor |
| title_sort | digitally patterned mesoporous carbon nanostructures of colorless polyimide for transparent and flexible micro supercapacitor |
| topic | laser direct laser writing carbonization colorless polyimide electric double-layer capacitor flexible and transparent micro-supercapacitor |
| url | https://www.mdpi.com/1996-1073/14/9/2547 |
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