Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO<sub>2</sub> Nanoparticles for Display Applications

Bhupendra Pratap Singh; Samiksha Sikarwar; Abhishek Kumar Misra; Pankaj Kumar Tripathi; Atul Kumar Srivastava; Meeta Sah; Rajiv Manohar; Kamal Kumar Pandey

doi:doi:10.11648/j.wjac.20210603.11

Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO₂ Nanoparticles for Display Applications

Bhupendra Pratap Singh, Samiksha Sikarwar, Abhishek Kumar Misra, Pankaj Kumar Tripathi, Atul Kumar Srivastava, Meeta Sah, Rajiv Manohar, Kamal Kumar Pandey

Published in World Journal of Applied Chemistry (Volume 6, Issue 3)

Received: 13 June 2021 Accepted: 28 June 2021 Published: 6 July 2021

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Abstract

Organic–inorganic composite based on liquid crystalline and TiO₂ nanoparticles were obtained and investigated taking into account the crystallographic form of TiO₂ i.e., anatase/rutile mixed phase. TiO₂ is an important class of material having various dielectric and electro-optical properties. The existent research presents the electro-optical properties of nematic liquid crystal (NLC) E204 and TiO₂ nanocomposites over an extensive range of frequencies. Various important display parameters such as response time, threshold voltage, pretilt angle and activation energy of pristine as well as TiO₂ doped composites systems were measured and analyzed. In comparison with the pure, TiO₂-doped composite systems has approximately 50% faster response time, owing to its remarkable decline in the relaxation time and activation energy of the LCs. The alteration in the optical intensity of the NLC composites as a function of the concentration of TiO₂ nanoparticles (NPs) was also examined. It was established that the optical intensity in nano-nematic composites was decreasing with the concentration of TiO₂ NPs. Also, it was observed that an escalation in the TiO₂ NPs concentration in NLC composites indicates to an escalation in the birefringence. Probable mechanisms of the interactivity between NLC molecules and TiO₂ NPs have been discussed. The current work shows that the TiO₂ NPs doping has an encouraging application in the display devices, including other electro-optical as well as photonic applications.

Published in	World Journal of Applied Chemistry (Volume 6, Issue 3)
DOI	10.11648/j.wjac.20210603.11
Page(s)	25-35
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Liquid Crystal, Response Time, Pretilt Angle, Threshold Voltage, Birefringence, Activation Energy

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APA Style

Bhupendra Pratap Singh, Samiksha Sikarwar, Abhishek Kumar Misra, Pankaj Kumar Tripathi, Atul Kumar Srivastava, et al. (2021). Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications. World Journal of Applied Chemistry, 6(3), 25-35. https://doi.org/10.11648/j.wjac.20210603.11

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ACS Style

Bhupendra Pratap Singh; Samiksha Sikarwar; Abhishek Kumar Misra; Pankaj Kumar Tripathi; Atul Kumar Srivastava, et al. Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications. World J. Appl. Chem. 2021, 6(3), 25-35. doi: 10.11648/j.wjac.20210603.11

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AMA Style

Bhupendra Pratap Singh, Samiksha Sikarwar, Abhishek Kumar Misra, Pankaj Kumar Tripathi, Atul Kumar Srivastava, et al. Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications. World J Appl Chem. 2021;6(3):25-35. doi: 10.11648/j.wjac.20210603.11

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@article{10.11648/j.wjac.20210603.11,
  author = {Bhupendra Pratap Singh and Samiksha Sikarwar and Abhishek Kumar Misra and Pankaj Kumar Tripathi and Atul Kumar Srivastava and Meeta Sah and Rajiv Manohar and Kamal Kumar Pandey},
  title = {Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications},
  journal = {World Journal of Applied Chemistry},
  volume = {6},
  number = {3},
  pages = {25-35},
  doi = {10.11648/j.wjac.20210603.11},
  url = {https://doi.org/10.11648/j.wjac.20210603.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjac.20210603.11},
  abstract = {Organic–inorganic composite based on liquid crystalline and TiO2 nanoparticles were obtained and investigated taking into account the crystallographic form of TiO2 i.e., anatase/rutile mixed phase. TiO2 is an important class of material having various dielectric and electro-optical properties. The existent research presents the electro-optical properties of nematic liquid crystal (NLC) E204 and TiO2 nanocomposites over an extensive range of frequencies. Various important display parameters such as response time, threshold voltage, pretilt angle and activation energy of pristine as well as TiO2 doped composites systems were measured and analyzed. In comparison with the pure, TiO2-doped composite systems has approximately 50% faster response time, owing to its remarkable decline in the relaxation time and activation energy of the LCs. The alteration in the optical intensity of the NLC composites as a function of the concentration of TiO2 nanoparticles (NPs) was also examined. It was established that the optical intensity in nano-nematic composites was decreasing with the concentration of TiO2 NPs. Also, it was observed that an escalation in the TiO2 NPs concentration in NLC composites indicates to an escalation in the birefringence. Probable mechanisms of the interactivity between NLC molecules and TiO2 NPs have been discussed. The current work shows that the TiO2 NPs doping has an encouraging application in the display devices, including other electro-optical as well as photonic applications.},
 year = {2021}
}

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TY  - JOUR
T1  - Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications
AU  - Bhupendra Pratap Singh
AU  - Samiksha Sikarwar
AU  - Abhishek Kumar Misra
AU  - Pankaj Kumar Tripathi
AU  - Atul Kumar Srivastava
AU  - Meeta Sah
AU  - Rajiv Manohar
AU  - Kamal Kumar Pandey
Y1  - 2021/07/06
PY  - 2021
N1  - https://doi.org/10.11648/j.wjac.20210603.11
DO  - 10.11648/j.wjac.20210603.11
T2  - World Journal of Applied Chemistry
JF  - World Journal of Applied Chemistry
JO  - World Journal of Applied Chemistry
SP  - 25
EP  - 35
PB  - Science Publishing Group
SN  - 2637-5982
UR  - https://doi.org/10.11648/j.wjac.20210603.11
AB  - Organic–inorganic composite based on liquid crystalline and TiO2 nanoparticles were obtained and investigated taking into account the crystallographic form of TiO2 i.e., anatase/rutile mixed phase. TiO2 is an important class of material having various dielectric and electro-optical properties. The existent research presents the electro-optical properties of nematic liquid crystal (NLC) E204 and TiO2 nanocomposites over an extensive range of frequencies. Various important display parameters such as response time, threshold voltage, pretilt angle and activation energy of pristine as well as TiO2 doped composites systems were measured and analyzed. In comparison with the pure, TiO2-doped composite systems has approximately 50% faster response time, owing to its remarkable decline in the relaxation time and activation energy of the LCs. The alteration in the optical intensity of the NLC composites as a function of the concentration of TiO2 nanoparticles (NPs) was also examined. It was established that the optical intensity in nano-nematic composites was decreasing with the concentration of TiO2 NPs. Also, it was observed that an escalation in the TiO2 NPs concentration in NLC composites indicates to an escalation in the birefringence. Probable mechanisms of the interactivity between NLC molecules and TiO2 NPs have been discussed. The current work shows that the TiO2 NPs doping has an encouraging application in the display devices, including other electro-optical as well as photonic applications.
VL  - 6
IS  - 3
ER  -

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Author Information

Bhupendra Pratap Singh

Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, India
Samiksha Sikarwar

Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow, India
Abhishek Kumar Misra

Department of Physics, Government Vishwanath Yadav Tamaskar Post-Graduate Autonomous College, Durg, Chhattisgarh, India
Pankaj Kumar Tripathi

Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, India
Atul Kumar Srivastava

Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, India
Meeta Sah

Shri Jai Narain Misra Post-Graduate College (KKC), Charbagh, Lucknow, India
Rajiv Manohar

Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow, India
Kamal Kumar Pandey

Shri Jai Narain Misra Post-Graduate College (KKC), Charbagh, Lucknow, India

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APA Style

Bhupendra Pratap Singh, Samiksha Sikarwar, Abhishek Kumar Misra, Pankaj Kumar Tripathi, Atul Kumar Srivastava, et al. (2021). Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications. World Journal of Applied Chemistry, 6(3), 25-35. https://doi.org/10.11648/j.wjac.20210603.11

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ACS Style

Bhupendra Pratap Singh; Samiksha Sikarwar; Abhishek Kumar Misra; Pankaj Kumar Tripathi; Atul Kumar Srivastava, et al. Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications. World J. Appl. Chem. 2021, 6(3), 25-35. doi: 10.11648/j.wjac.20210603.11

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AMA Style

Bhupendra Pratap Singh, Samiksha Sikarwar, Abhishek Kumar Misra, Pankaj Kumar Tripathi, Atul Kumar Srivastava, et al. Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications. World J Appl Chem. 2021;6(3):25-35. doi: 10.11648/j.wjac.20210603.11

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@article{10.11648/j.wjac.20210603.11,
  author = {Bhupendra Pratap Singh and Samiksha Sikarwar and Abhishek Kumar Misra and Pankaj Kumar Tripathi and Atul Kumar Srivastava and Meeta Sah and Rajiv Manohar and Kamal Kumar Pandey},
  title = {Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications},
  journal = {World Journal of Applied Chemistry},
  volume = {6},
  number = {3},
  pages = {25-35},
  doi = {10.11648/j.wjac.20210603.11},
  url = {https://doi.org/10.11648/j.wjac.20210603.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjac.20210603.11},
  abstract = {Organic–inorganic composite based on liquid crystalline and TiO2 nanoparticles were obtained and investigated taking into account the crystallographic form of TiO2 i.e., anatase/rutile mixed phase. TiO2 is an important class of material having various dielectric and electro-optical properties. The existent research presents the electro-optical properties of nematic liquid crystal (NLC) E204 and TiO2 nanocomposites over an extensive range of frequencies. Various important display parameters such as response time, threshold voltage, pretilt angle and activation energy of pristine as well as TiO2 doped composites systems were measured and analyzed. In comparison with the pure, TiO2-doped composite systems has approximately 50% faster response time, owing to its remarkable decline in the relaxation time and activation energy of the LCs. The alteration in the optical intensity of the NLC composites as a function of the concentration of TiO2 nanoparticles (NPs) was also examined. It was established that the optical intensity in nano-nematic composites was decreasing with the concentration of TiO2 NPs. Also, it was observed that an escalation in the TiO2 NPs concentration in NLC composites indicates to an escalation in the birefringence. Probable mechanisms of the interactivity between NLC molecules and TiO2 NPs have been discussed. The current work shows that the TiO2 NPs doping has an encouraging application in the display devices, including other electro-optical as well as photonic applications.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Enhanced Electro-optical Properties of Low Viscous Nematic Liquid Crystal Doped with Mixed Phase Anatase/Rutile TiO2 Nanoparticles for Display Applications
AU  - Bhupendra Pratap Singh
AU  - Samiksha Sikarwar
AU  - Abhishek Kumar Misra
AU  - Pankaj Kumar Tripathi
AU  - Atul Kumar Srivastava
AU  - Meeta Sah
AU  - Rajiv Manohar
AU  - Kamal Kumar Pandey
Y1  - 2021/07/06
PY  - 2021
N1  - https://doi.org/10.11648/j.wjac.20210603.11
DO  - 10.11648/j.wjac.20210603.11
T2  - World Journal of Applied Chemistry
JF  - World Journal of Applied Chemistry
JO  - World Journal of Applied Chemistry
SP  - 25
EP  - 35
PB  - Science Publishing Group
SN  - 2637-5982
UR  - https://doi.org/10.11648/j.wjac.20210603.11
AB  - Organic–inorganic composite based on liquid crystalline and TiO2 nanoparticles were obtained and investigated taking into account the crystallographic form of TiO2 i.e., anatase/rutile mixed phase. TiO2 is an important class of material having various dielectric and electro-optical properties. The existent research presents the electro-optical properties of nematic liquid crystal (NLC) E204 and TiO2 nanocomposites over an extensive range of frequencies. Various important display parameters such as response time, threshold voltage, pretilt angle and activation energy of pristine as well as TiO2 doped composites systems were measured and analyzed. In comparison with the pure, TiO2-doped composite systems has approximately 50% faster response time, owing to its remarkable decline in the relaxation time and activation energy of the LCs. The alteration in the optical intensity of the NLC composites as a function of the concentration of TiO2 nanoparticles (NPs) was also examined. It was established that the optical intensity in nano-nematic composites was decreasing with the concentration of TiO2 NPs. Also, it was observed that an escalation in the TiO2 NPs concentration in NLC composites indicates to an escalation in the birefringence. Probable mechanisms of the interactivity between NLC molecules and TiO2 NPs have been discussed. The current work shows that the TiO2 NPs doping has an encouraging application in the display devices, including other electro-optical as well as photonic applications.
VL  - 6
IS  - 3
ER  -

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