Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach
The applications of liquid crystals in the field of renewable, clean and sustainable technologies of energy storage are of utmost importance at present. This paper delves into dielectric spectroscopic studies of a weakly polar nematic liquid crystal (NLC) enriched with an anthraquinone dye. The prim...
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MDPI AG
2023-11-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/7/11/470 |
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| author | Bhupendra Pratap Singh Shikha Agarwal Mohammad Rafe Hatshan Keshav Kumar Singh Kulurumotlakatla Dasha Kumar Rajiv Manohar Pankaj Kumar Tripathi Dharmendra Pratap Singh |
| author_facet | Bhupendra Pratap Singh Shikha Agarwal Mohammad Rafe Hatshan Keshav Kumar Singh Kulurumotlakatla Dasha Kumar Rajiv Manohar Pankaj Kumar Tripathi Dharmendra Pratap Singh |
| author_sort | Bhupendra Pratap Singh |
| collection | DOAJ |
| description | The applications of liquid crystals in the field of renewable, clean and sustainable technologies of energy storage are of utmost importance at present. This paper delves into dielectric spectroscopic studies of a weakly polar nematic liquid crystal (NLC) enriched with an anthraquinone dye. The primary objective is to assess the impact of increasing dye concentrations on various properties. Anthraquinone dye has been found to increase the dielectric permittivity of weakly polar NLC, leading to a 4.7-fold increase in dielectric anisotropy. Simultaneously, a reduction of around 11% in threshold and operating voltages of the NLC has also been recorded after using dye as the guest material. The added dipolar contributions provided by dye molecules have been attributed to this surplus permittivity. The NLC has been found to have an approximately 54% faster response to the applied field. The intrinsic polarization field of dye molecules accelerates nearby LC molecule reorientation, leading to a 56.5% faster fall time and a 29.8% faster rise time in a 3.0 wt% dye-doped LC cell. These experimental results have been validated via computational studies as well. The simulation results about dipole moment and polarizability provide robust support for our experimental results. Such composites evince their potential for energy storage and 5G communication technologies with adjustable impedance and permittivity. |
| first_indexed | 2024-03-09T16:43:35Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-09T16:43:35Z |
| publishDate | 2023-11-01 |
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| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-fa8b6841aed048cb9baf08906c7359d82023-11-24T14:49:55ZengMDPI AGJournal of Composites Science2504-477X2023-11-0171147010.3390/jcs7110470Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive ApproachBhupendra Pratap Singh0Shikha Agarwal1Mohammad Rafe Hatshan2Keshav Kumar Singh3Kulurumotlakatla Dasha Kumar4Rajiv Manohar5Pankaj Kumar Tripathi6Dharmendra Pratap Singh7Department of Electro-Optical Engineering, National United University, No. 2, Lien-Da, Miaoli 360, TaiwanLiquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow 226007, Uttar Pradesh, IndiaDepartment of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Physics, University of Lucknow, Lucknow 226007, Uttar Pradesh, IndiaGraduate School of Convergence Science, Department of Applied Hybrid Materials, Pusan National University, San 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of KoreaLiquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow 226007, Uttar Pradesh, IndiaDepartment of Physics, Sharda University, Knowledge Park III, Greater Noida 201310, Uttar Pradesh, IndiaUnité de Dynamique et Structure des Matériaux, Moléculaires (UDSMM), Université du Littoral Côte d’Opale (ULCO), 50 Rue Ferdinand Buisson, 62228 Calais, FranceThe applications of liquid crystals in the field of renewable, clean and sustainable technologies of energy storage are of utmost importance at present. This paper delves into dielectric spectroscopic studies of a weakly polar nematic liquid crystal (NLC) enriched with an anthraquinone dye. The primary objective is to assess the impact of increasing dye concentrations on various properties. Anthraquinone dye has been found to increase the dielectric permittivity of weakly polar NLC, leading to a 4.7-fold increase in dielectric anisotropy. Simultaneously, a reduction of around 11% in threshold and operating voltages of the NLC has also been recorded after using dye as the guest material. The added dipolar contributions provided by dye molecules have been attributed to this surplus permittivity. The NLC has been found to have an approximately 54% faster response to the applied field. The intrinsic polarization field of dye molecules accelerates nearby LC molecule reorientation, leading to a 56.5% faster fall time and a 29.8% faster rise time in a 3.0 wt% dye-doped LC cell. These experimental results have been validated via computational studies as well. The simulation results about dipole moment and polarizability provide robust support for our experimental results. Such composites evince their potential for energy storage and 5G communication technologies with adjustable impedance and permittivity.https://www.mdpi.com/2504-477X/7/11/470liquid crystalresponse timecapacitancedielectric propertiestunabilitydensity functional theory |
| spellingShingle | Bhupendra Pratap Singh Shikha Agarwal Mohammad Rafe Hatshan Keshav Kumar Singh Kulurumotlakatla Dasha Kumar Rajiv Manohar Pankaj Kumar Tripathi Dharmendra Pratap Singh Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach Journal of Composites Science liquid crystal response time capacitance dielectric properties tunability density functional theory |
| title | Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach |
| title_full | Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach |
| title_fullStr | Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach |
| title_full_unstemmed | Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach |
| title_short | Examining Energy Storage Potential in Weakly Polar Nematic Liquid Crystals Infused with Anthraquinone Dye: A Comprehensive Approach |
| title_sort | examining energy storage potential in weakly polar nematic liquid crystals infused with anthraquinone dye a comprehensive approach |
| topic | liquid crystal response time capacitance dielectric properties tunability density functional theory |
| url | https://www.mdpi.com/2504-477X/7/11/470 |
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