Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors
In this paper, we present a comparative study of a cost-effective method for the mass fabrication of electrodes to be used in thin-film flexible supercapacitors. This technique is based on the laser-synthesis of graphene-based nanomaterials, specifically, laser-induced graphene and reduced graphene...
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| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/11/6/555 |
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| author | Francisco J. Romero Denice Gerardo Raul Romero Inmaculada Ortiz-Gomez Alfonso Salinas-Castillo Carmen L. Moraila-Martinez Noel Rodriguez Diego P. Morales |
| author_facet | Francisco J. Romero Denice Gerardo Raul Romero Inmaculada Ortiz-Gomez Alfonso Salinas-Castillo Carmen L. Moraila-Martinez Noel Rodriguez Diego P. Morales |
| author_sort | Francisco J. Romero |
| collection | DOAJ |
| description | In this paper, we present a comparative study of a cost-effective method for the mass fabrication of electrodes to be used in thin-film flexible supercapacitors. This technique is based on the laser-synthesis of graphene-based nanomaterials, specifically, laser-induced graphene and reduced graphene oxide. The synthesis of these materials was performed using two different lasers: a CO<sub>2</sub> laser with an infrared wavelength of λ = 10.6 µm and a UV laser (λ = 405 nm). After the optimization of the parameters of both lasers for this purpose, the performance of these materials as bare electrodes for flexible supercapacitors was studied in a comparative way. The experiments showed that the electrodes synthetized with the low-cost UV laser compete well in terms of specific capacitance with those obtained with the CO<sub>2</sub> laser, while the best performance is provided by the rGO electrodes fabricated with the CO<sub>2</sub> laser. It has also been demonstrated that the degree of reduction achieved with the UV laser for the rGO patterns was not enough to provide a good interaction electrode-electrolyte. Finally, we proved that the specific capacitance achieved with the presented supercapacitors can be improved by modifying the in-planar structure, without compromising their performance, which, together with their compatibility with doping-techniques and surface treatments processes, shows the potential of this technology for the fabrication of future high-performance and inexpensive flexible supercapacitors. |
| first_indexed | 2024-03-10T19:29:26Z |
| format | Article |
| id | doaj.art-324a4b0b0f7c4afb8357d6605a9eac3b |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T19:29:26Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-324a4b0b0f7c4afb8357d6605a9eac3b2023-11-20T02:17:01ZengMDPI AGMicromachines2072-666X2020-05-0111655510.3390/mi11060555Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible SupercapacitorsFrancisco J. Romero0Denice Gerardo1Raul Romero2Inmaculada Ortiz-Gomez3Alfonso Salinas-Castillo4Carmen L. Moraila-Martinez5Noel Rodriguez6Diego P. Morales7Pervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, SpainParque de Innovación Tecnológica, Facultad de Ciencias Físico Matemáticas, Universidad Autónoma de Sinaloa, 80040 Culiacán, MexicoPervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, SpainDepartment of Analytical Chemistry, Faculty of Science, University of Granada, 18071 Granada, SpainDepartment of Analytical Chemistry, Faculty of Science, University of Granada, 18071 Granada, SpainParque de Innovación Tecnológica, Facultad de Ciencias Físico Matemáticas, Universidad Autónoma de Sinaloa, 80040 Culiacán, MexicoPervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, SpainDepartment of Electronics and Computer Technology, University of Granada, 18071 Granada, SpainIn this paper, we present a comparative study of a cost-effective method for the mass fabrication of electrodes to be used in thin-film flexible supercapacitors. This technique is based on the laser-synthesis of graphene-based nanomaterials, specifically, laser-induced graphene and reduced graphene oxide. The synthesis of these materials was performed using two different lasers: a CO<sub>2</sub> laser with an infrared wavelength of λ = 10.6 µm and a UV laser (λ = 405 nm). After the optimization of the parameters of both lasers for this purpose, the performance of these materials as bare electrodes for flexible supercapacitors was studied in a comparative way. The experiments showed that the electrodes synthetized with the low-cost UV laser compete well in terms of specific capacitance with those obtained with the CO<sub>2</sub> laser, while the best performance is provided by the rGO electrodes fabricated with the CO<sub>2</sub> laser. It has also been demonstrated that the degree of reduction achieved with the UV laser for the rGO patterns was not enough to provide a good interaction electrode-electrolyte. Finally, we proved that the specific capacitance achieved with the presented supercapacitors can be improved by modifying the in-planar structure, without compromising their performance, which, together with their compatibility with doping-techniques and surface treatments processes, shows the potential of this technology for the fabrication of future high-performance and inexpensive flexible supercapacitors.https://www.mdpi.com/2072-666X/11/6/555flexible electronicsgraphene oxidelaser-induced graphenelaser-scribingsupercapacitors |
| spellingShingle | Francisco J. Romero Denice Gerardo Raul Romero Inmaculada Ortiz-Gomez Alfonso Salinas-Castillo Carmen L. Moraila-Martinez Noel Rodriguez Diego P. Morales Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors Micromachines flexible electronics graphene oxide laser-induced graphene laser-scribing supercapacitors |
| title | Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors |
| title_full | Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors |
| title_fullStr | Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors |
| title_full_unstemmed | Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors |
| title_short | Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors |
| title_sort | comparison of laser synthetized nanographene based electrodes for flexible supercapacitors |
| topic | flexible electronics graphene oxide laser-induced graphene laser-scribing supercapacitors |
| url | https://www.mdpi.com/2072-666X/11/6/555 |
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