High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets
Two-dimensional molybdenum disulfide (MoS2) nanosheets have emerged as a promising material for transparent, flexible micro-supercapacitors, but their use in electrodes is hindered by their poor electrical conductivity and cycling stability because of restacking. In this paper, we report a novel ele...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-12-01
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| Series: | Science and Technology of Advanced Materials |
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| Online Access: | http://dx.doi.org/10.1080/14686996.2021.1978274 |
| _version_ | 1818984983130275840 |
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| author | Vivekanandan Raman Dongjoon Rhee Aravindha Raja Selvaraj Jihyun Kim Kandasamy Prabakar Joohoon Kang Han-Ki Kim |
| author_facet | Vivekanandan Raman Dongjoon Rhee Aravindha Raja Selvaraj Jihyun Kim Kandasamy Prabakar Joohoon Kang Han-Ki Kim |
| author_sort | Vivekanandan Raman |
| collection | DOAJ |
| description | Two-dimensional molybdenum disulfide (MoS2) nanosheets have emerged as a promising material for transparent, flexible micro-supercapacitors, but their use in electrodes is hindered by their poor electrical conductivity and cycling stability because of restacking. In this paper, we report a novel electrode architecture to exploit electrochemical activity of MoS2 nanosheets. Electrochemically exfoliated MoS2 dispersion was spin coated on mesh-like silver networks encapsulated with a flexible conducting film exhibiting a pseudocapacitive behavior. MoS2 nanosheets were electrochemically active over the whole electrode surface and the conductive layer provided a pathway to transport electrons between the MoS2 and the electrolyte. As the result, the composite electrode achieved a large areal capacitance (89.44 mF cm−2 at 6 mA cm−2) and high energy and power densities (12.42 µWh cm−2 and P = 6043 µW cm−2 at 6 mA cm−2) in a symmetric cell configuration with 3 M KOH solution while exhibiting a high optical transmittance of ~80%. Because the system was stable against mechanical bending and charge/discharge cycles, a flexible micro-supercapacitor that can power electronics at different bending states was realized. |
| first_indexed | 2024-12-20T18:27:40Z |
| format | Article |
| id | doaj.art-1ffc41b104f243bc991f108d8b8074a7 |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-12-20T18:27:40Z |
| publishDate | 2021-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-1ffc41b104f243bc991f108d8b8074a72022-12-21T19:30:06ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142021-12-0122187588410.1080/14686996.2021.19782741978274High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheetsVivekanandan Raman0Dongjoon Rhee1Aravindha Raja Selvaraj2Jihyun Kim3Kandasamy Prabakar4Joohoon Kang5Han-Ki Kim6Sungkyunkwan UniversitySungkyunkwan UniversityPusan National UniversitySungkyunkwan UniversityPusan National UniversitySungkyunkwan UniversitySungkyunkwan UniversityTwo-dimensional molybdenum disulfide (MoS2) nanosheets have emerged as a promising material for transparent, flexible micro-supercapacitors, but their use in electrodes is hindered by their poor electrical conductivity and cycling stability because of restacking. In this paper, we report a novel electrode architecture to exploit electrochemical activity of MoS2 nanosheets. Electrochemically exfoliated MoS2 dispersion was spin coated on mesh-like silver networks encapsulated with a flexible conducting film exhibiting a pseudocapacitive behavior. MoS2 nanosheets were electrochemically active over the whole electrode surface and the conductive layer provided a pathway to transport electrons between the MoS2 and the electrolyte. As the result, the composite electrode achieved a large areal capacitance (89.44 mF cm−2 at 6 mA cm−2) and high energy and power densities (12.42 µWh cm−2 and P = 6043 µW cm−2 at 6 mA cm−2) in a symmetric cell configuration with 3 M KOH solution while exhibiting a high optical transmittance of ~80%. Because the system was stable against mechanical bending and charge/discharge cycles, a flexible micro-supercapacitor that can power electronics at different bending states was realized.http://dx.doi.org/10.1080/14686996.2021.1978274micro-supercapacitorflexible transparent electrodenanocompositemolybdenum disulfidepseudocapacitance |
| spellingShingle | Vivekanandan Raman Dongjoon Rhee Aravindha Raja Selvaraj Jihyun Kim Kandasamy Prabakar Joohoon Kang Han-Ki Kim High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets Science and Technology of Advanced Materials micro-supercapacitor flexible transparent electrode nanocomposite molybdenum disulfide pseudocapacitance |
| title | High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets |
| title_full | High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets |
| title_fullStr | High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets |
| title_full_unstemmed | High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets |
| title_short | High-performance flexible transparent micro-supercapacitors from nanocomposite electrodes encapsulated with solution processed MoS2 nanosheets |
| title_sort | high performance flexible transparent micro supercapacitors from nanocomposite electrodes encapsulated with solution processed mos2 nanosheets |
| topic | micro-supercapacitor flexible transparent electrode nanocomposite molybdenum disulfide pseudocapacitance |
| url | http://dx.doi.org/10.1080/14686996.2021.1978274 |
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