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Effect of BaTiO3 Nanoparticle on Electro-Optical Properties of Polymer Dispersed Liquid Crystal Displays

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DOI: 10.4236/jcpt.2014.41008    3,662 Downloads   6,245 Views   Citations
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Mallikharjuna Rao Darla, Sriharsha Hegde, Soney Varghese

Affiliation(s)

Department of GEBH, Sree Vidyanikethan Engineering College, A Rangampet, Tirupati, Andhra Pradesh, India.
Department of Mechanical Engineering, National Institute of Technology Karnataka (NITK), Surathkal, Karnataka, India.
School of Nano Science and Technology, National Institute of Technology Calicut (NITC), Kerala, India.

ABSTRACT

Ferro nematic suspensions are the prominent materials to enhance the electro optical performance of liquid crystal displays. Electro optical properties of polymer dispersed liquid crystal (PDLC) display with the introduction of Barium Titanate nanoparticles have been investigated in this article and it is shown that there is a considerable enhancement in electro-optical response of the displays. The nanoparticles lower the switch-on electric field and thereby increase the optical transmission at certain voltages of the displays. The electro-optical characteristics of the PDLC cells were investigated with a He-Ne laser followed by MatLab calculations.

KEYWORDS

Polymer Dispersed Liquid Crystal; Barium Titanate; Liquid Crystal

Cite this paper

M. Rao Darla, S. Hegde and S. Varghese, "Effect of BaTiO3 Nanoparticle on Electro-Optical Properties of Polymer Dispersed Liquid Crystal Displays," Journal of Crystallization Process and Technology, Vol. 4 No. 1, 2014, pp. 60-63. doi: 10.4236/jcpt.2014.41008.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] S. Chandrasekhar, “Liquid Crystals,” Cambridge University Press, Cambridge, 1997.
[2] S. Kumar, “Liquid Crystals: Experimental Study of Physical Properties and Phase Transitions,” Cambridge University Press, Cambridge, 2001.
[3] J. W. Doane, A. Golemme, J. L. West Jr., J. B. Whitehead and B. G. Wu, “Polymer Dispersed Liquid Crystals for Display Application,” Molecular Crystals and Liquid Crystals, Vol. 165, No. 1, 1988, pp. 511-532.
[4] S. C. Sharma, “A Review of the Electro-Optical Properties and Their Modification by Radiation in Polymer-Dispersed Liquid Crystals and Thin Films Containing CdSe/ZnS Quantum Dots,” Material Science and Engineering B, Vol. 168, No. 1-3, 2010, pp. 5-15.
http://dx.doi.org/10.1016/j.mseb.2010.01.014
[5] L. Bouteiller and P. L. Barny, “Polymer Dispersed Liquid Crystals: Preparation, Operation and Application,” Liquid crystals, Vol. 21, No. 2, 1996, pp. 157-174.
http://dx.doi.org/10.1080/02678299608032820
[6] G. Spruce and R. D. Pringle, “Polymer Dispersed Liquid Crystal (PDLC) Films,” Electronic Communication Engineering Journal, Vol. 4, No. 2, 1992, pp. 91-100.
http://dx.doi.org/10.1049/ecej:19920017
[7] G. P. Crawford and S. Zumer, “Liquid Crystals in Complex Geometries,” Taylor & Francis, London, 1996.
[8] D. Armitage, I. Underwood and S. T. Wu, “Introduction to Microdisplays,” Chichester, Wiley, 2006.
http://dx.doi.org/10.1002/9780470057056
[9] G. P. Crawford, “Flexible Flat Panel Displays,” Chichester, Wiley, 2005.
http://dx.doi.org/10.1002/0470870508
[10] A. Hinojosa and S. C. Sharma, “Effects of Gold Nanoparticles on Electro-Optical Properties of a Polymer-Dispersed Liquid Crystal,” Applied Physics Letters, Vol. 97, No. 8, 2010, Article ID: 081114.
http://dx.doi.org/10.1063/1.3482942
[11] S. I. Bozhevolnyi and V. M. Shalaev, “Nanophotonics with Surface Plasmons-Part I,” Photonics Spectra, Vol. 40, No. 1, 2006, pp. 58-66.
[12] V. M. Shalaev and S. I. Bozhevolnyi, “Nanophotonics with Surface Plasmons-Part II,” Photonics Spectra, Vol. 40, No. 2, 2006, pp. 66-72.
[13] W. L. Barnes, A. Dereux and T. V. Ebbesen, “Surface Plasmon Sub-Wavelength Optics,” Nature, Vol. 424, No. 6950, 2003, pp. 824-830.
http://dx.doi.org/10.1038/nature01937
[14] T. Zhu, B. Tan, X. Pan, W. Tao and J Xu, “Electro-Optical Characteristic of Frequency Modulation in Nano Ag Doped PDLC,” IEEE Proceedings of the Symposium on Photonics and Optoelectronics, Wuhan, 14-16 August 2009, pp. 1-4.
http://dx.doi.org/10.1109/SOPO.2009.5230055
[15] V. Yaroshchuk and L. O. Dolgov, “Electro-Optics and Structure of Polymer Dispersed Liquid Crystals Doped with Nanoparticles of Inorganic Materials,” Optical Materials, Vol. 29, No. 8, 2007, pp. 1097-1102.
http://dx.doi.org/10.1016/j.optmat.2006.04.009
[16] V. Yaroshchuk, L. O. Dolgov and A. D. Kiselev, “Electro-Optics and Structural Peculiarities of Liquid Crystal- Nanoparticle-Polymer Composite,” Physical Review E, Vol. 72, No. 5, 2005, Article ID: 051715.
http://dx.doi.org/10.1103/PhysRevE.72.051715
[17] R. M. Henry, R. A. Ramsey and S. C. Sharma, “Effects of Cross Linking Agent, Cure Temperature, and UV Flux on the Electro-Optical Properties of Polymer-Dispersed Liquid Crystal Cells,” Journal of Polymer Science, Part B: Polymer Physics, Vol. 42, No. 3, 2004, pp. 404-410.
http://dx.doi.org/10.1002/polb.10665
[18] R. M. Henry, S. C. Sharma, R. A. Ramsey, M. L. Cramer and J. B. Atman, “Effects of Formulation Variables on Liquid Crystal Droplet Size Distributions in Ultraviolet-Cured Polymer-Dispersed Liquid Crystal Cells,” Journal of Polymer Science, Part B: Polymer Physics, Vol. 43, No. 14, 2005, pp. 1842-1848.
http://dx.doi.org/10.1002/polb.20438
[19] H. K. Bisoyi and S. Kumar, “Carbon Nanotubes in Discotic Liquid Crystals,” Journal of Indian Institute of Science, Vol. 89, No. 2, 2009, pp. 101-112.

  
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