Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide
In this article, we employed the saturation voltage method (SVM) to investigate the interaction between a nematic liquid crystal (NLC) and a graphene oxide (GO) substrate. The SVM approach involved applying a potential difference (ΔV) to the cell containing the NLC (specifically, 5CB) to reorient th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/10/1500 |
| _version_ | 1827721230623440896 |
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| author | Grazia Giuseppina Politano Francesco Filice Carlo Versace |
| author_facet | Grazia Giuseppina Politano Francesco Filice Carlo Versace |
| author_sort | Grazia Giuseppina Politano |
| collection | DOAJ |
| description | In this article, we employed the saturation voltage method (SVM) to investigate the interaction between a nematic liquid crystal (NLC) and a graphene oxide (GO) substrate. The SVM approach involved applying a potential difference (ΔV) to the cell containing the NLC (specifically, 5CB) to reorient the nematic director (n) from a parallel to a perpendicular configuration with respect to the cell’s surface. By utilizing sandwich cells with indium–tin oxide semi-transparent electrodes covered by GO, we measured the anchoring energy between the NLC and the thin GO film. To evaluate the strength of this anchoring energy, we compared the results with two other cells: one exhibiting strong anchoring energy (polyimide cell) and the other demonstrating weak anchoring energy (formvar cell). The influence of GO thin films on the alignment of nematic 5CB was distinctly observed. |
| first_indexed | 2024-03-10T21:19:37Z |
| format | Article |
| id | doaj.art-54667da682584eb1a5b944822a6c52ae |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T21:19:37Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-54667da682584eb1a5b944822a6c52ae2023-11-19T16:10:07ZengMDPI AGCrystals2073-43522023-10-011310150010.3390/cryst13101500Alignment of Nematic Liquid Crystal 5CB Using Graphene OxideGrazia Giuseppina Politano0Francesco Filice1Carlo Versace2Department of Information Engineering, Infrastructures and Sustainable Energy (DIIES), University “Mediterranea” of Reggio Calabria, 89122 Reggio Calabria, ItalyDepartment of Physics, University of Calabria, 87036 Rende, ItalyDepartment of Physics, University of Calabria, 87036 Rende, ItalyIn this article, we employed the saturation voltage method (SVM) to investigate the interaction between a nematic liquid crystal (NLC) and a graphene oxide (GO) substrate. The SVM approach involved applying a potential difference (ΔV) to the cell containing the NLC (specifically, 5CB) to reorient the nematic director (n) from a parallel to a perpendicular configuration with respect to the cell’s surface. By utilizing sandwich cells with indium–tin oxide semi-transparent electrodes covered by GO, we measured the anchoring energy between the NLC and the thin GO film. To evaluate the strength of this anchoring energy, we compared the results with two other cells: one exhibiting strong anchoring energy (polyimide cell) and the other demonstrating weak anchoring energy (formvar cell). The influence of GO thin films on the alignment of nematic 5CB was distinctly observed.https://www.mdpi.com/2073-4352/13/10/1500graphene oxidenematic liquid crystalssurface anchoring energy |
| spellingShingle | Grazia Giuseppina Politano Francesco Filice Carlo Versace Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide Crystals graphene oxide nematic liquid crystals surface anchoring energy |
| title | Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide |
| title_full | Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide |
| title_fullStr | Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide |
| title_full_unstemmed | Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide |
| title_short | Alignment of Nematic Liquid Crystal 5CB Using Graphene Oxide |
| title_sort | alignment of nematic liquid crystal 5cb using graphene oxide |
| topic | graphene oxide nematic liquid crystals surface anchoring energy |
| url | https://www.mdpi.com/2073-4352/13/10/1500 |
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