Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite

Abstract In this study, the response time of a 4 mm-aperture hole-patterned liquid crystal (HLC) lens has been significantly improved with doping of N-benzyl-2-methyl-4-nitroaniline (BNA) and rutile titanium dioxide nanoparticle (TiO2 NP) nanocomposite. The proposed HLC lens provides the focus and d...

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Autores principales:	Che Ju Hsu, Bhupendra Pratap Singh, Pravinraj Selvaraj, Mareena Antony, Rajiv Manohar, Chi Yen Huang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/09cc5ddbe68a41589bf023979977b9d9
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spelling	oai:doaj.org-article:09cc5ddbe68a41589bf023979977b9d92021-12-02T19:10:43ZSuperior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite10.1038/s41598-021-96991-42045-2322https://doaj.org/article/09cc5ddbe68a41589bf023979977b9d92021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96991-4https://doaj.org/toc/2045-2322Abstract In this study, the response time of a 4 mm-aperture hole-patterned liquid crystal (HLC) lens has been significantly improved with doping of N-benzyl-2-methyl-4-nitroaniline (BNA) and rutile titanium dioxide nanoparticle (TiO2 NP) nanocomposite. The proposed HLC lens provides the focus and defocus times that are 8.5× and 14× faster than the pristine HLC lens, respectively. Meanwhile, the focus and defocus times of the proposed HLC lens reach the order of millisecond. Result shows that the synergistic effect of BNA and TiO2 NP induces a 78% decrement in the viscosity of pristine LC mixture that significantly shortens the focus and defocus times of HLC lens. The remarkable decrement in viscosity is mainly attributed to spontaneous polarization electric fields from the permanent dipole moments of the additives. Besides, the strengthened electric field surrounding TiO2 NP assists in decreasing the focus time of HLC lens. The focus and defocus times of HLC lens are related to the wavefront (or phase profile) bending speed. The time-dependent phase profiles of the HLC lenses with various viscosities are calculated. This result shows the decrease in wavefront bending time is not simply proportional to viscosity decrement. Furthermore, the proposed HLC lens emerges a larger tunable focus capability within smaller voltage interval than the pristine HLC lens.Che Ju HsuBhupendra Pratap SinghPravinraj SelvarajMareena AntonyRajiv ManoharChi Yen HuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Che Ju Hsu Bhupendra Pratap Singh Pravinraj Selvaraj Mareena Antony Rajiv Manohar Chi Yen Huang Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
description	Abstract In this study, the response time of a 4 mm-aperture hole-patterned liquid crystal (HLC) lens has been significantly improved with doping of N-benzyl-2-methyl-4-nitroaniline (BNA) and rutile titanium dioxide nanoparticle (TiO2 NP) nanocomposite. The proposed HLC lens provides the focus and defocus times that are 8.5× and 14× faster than the pristine HLC lens, respectively. Meanwhile, the focus and defocus times of the proposed HLC lens reach the order of millisecond. Result shows that the synergistic effect of BNA and TiO2 NP induces a 78% decrement in the viscosity of pristine LC mixture that significantly shortens the focus and defocus times of HLC lens. The remarkable decrement in viscosity is mainly attributed to spontaneous polarization electric fields from the permanent dipole moments of the additives. Besides, the strengthened electric field surrounding TiO2 NP assists in decreasing the focus time of HLC lens. The focus and defocus times of HLC lens are related to the wavefront (or phase profile) bending speed. The time-dependent phase profiles of the HLC lenses with various viscosities are calculated. This result shows the decrease in wavefront bending time is not simply proportional to viscosity decrement. Furthermore, the proposed HLC lens emerges a larger tunable focus capability within smaller voltage interval than the pristine HLC lens.
format	article
author	Che Ju Hsu Bhupendra Pratap Singh Pravinraj Selvaraj Mareena Antony Rajiv Manohar Chi Yen Huang
author_facet	Che Ju Hsu Bhupendra Pratap Singh Pravinraj Selvaraj Mareena Antony Rajiv Manohar Chi Yen Huang
author_sort	Che Ju Hsu
title	Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
title_short	Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
title_full	Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
title_fullStr	Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
title_full_unstemmed	Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
title_sort	superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/09cc5ddbe68a41589bf023979977b9d9
work_keys_str_mv	AT chejuhsu superiorimprovementindynamicresponseofliquidcrystallensusingorganicandinorganicnanocomposite AT bhupendrapratapsingh superiorimprovementindynamicresponseofliquidcrystallensusingorganicandinorganicnanocomposite AT pravinrajselvaraj superiorimprovementindynamicresponseofliquidcrystallensusingorganicandinorganicnanocomposite AT mareenaantony superiorimprovementindynamicresponseofliquidcrystallensusingorganicandinorganicnanocomposite AT rajivmanohar superiorimprovementindynamicresponseofliquidcrystallensusingorganicandinorganicnanocomposite AT chiyenhuang superiorimprovementindynamicresponseofliquidcrystallensusingorganicandinorganicnanocomposite
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Superior improvement in dynamic response of liquid crystal lens using organic and inorganic nanocomposite

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