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Orientation of Ferroelectric Liquid Crystals by Self-Assembled Bilayer Molecular Assembly

Published online by Cambridge University Press:  15 March 2011

Sukhmal C. Jain ,
Vivechana Dixit ,
Vinod K. Tanwar  and
S. M. Shivaprasad
Sukhmal C. Jain
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
Vivechana Dixit
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
Vinod K. Tanwar
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
S. M. Shivaprasad
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
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Abstract

Molecular films of amino propyl triethoxy silane (APTES) attached with cinnamoyl moieties were deposited on indium tin oxide (ITO) coated glass and quartz substrates by self-assembly technique. The deposition of the monolayer films resulted in a large change in the wettability of the substrates. X-ray photoelectron spectroscopy (XPS) and UV-spectroscopy were used to study the structure and properties of the grown films. The molecular assembly was photodimerized by irradiating it with a linearly polarized UV-light. Thus created polymer-solid interface has been shown to produce good, stable planar orientation of ferroelectric liquid crystal mixtures. The electro-optical and switching properties of the ferroelectric liquid crystal cells have been investigated and found to be quite similar to those prepared in conventional manner.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 709: Symposium CC – Advances in Liquid Crystalline Materials and Technologies , 2001 , CC1.4.1
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Moses, P.R., Weir, L., Murray, R.W., Anal. Chem. 47, 1882 (1975)Google Scholar
2. Moses, P.R., Murray, R.W., J. Electroanal. Chem. 77, 393 (1977)Google Scholar
3. Moses, P.R., Wier, L., Lennox, J.C., Finklea, H.O., Lenhard, J.R. and Murray, R.W., Anal. Chem. 50, 576 (1978)Google Scholar
4. Piers, A.S. and Rochester, C.H., J. Colloid Interf. Sci. 174, 97 (1995)Google Scholar
5. Chiag, C.-H. and Ishida, H., Koenig, J.L., J. Colloid Interf. Sci. 74, 396 (1980)Google Scholar
6. Shimizer, I., Yoshiono, A., Okabayashi, H., Nishio, E., Oconnor, C.J., J. Chem. Soc., Faraday trans. 93, 1971 (1997)Google Scholar
7. Ulman, A., An Introduction to Ultrathin Organic Films: From Langmuir-Blodgett to Self-assembly, Academic Press, New York, 1991 Google Scholar
8. Ulman, A., Thin films and Surfaces: Directions for Nineties, Vol. 20, Academic Press, New York, 1995 Google Scholar
9. Netzer, L. and Sagiv, J., J. Am. Chem. Soc. 105, 674 (1983)Google Scholar
10. Shashidhar, R., Grüneberg, K., Shenoy, D., Peek, B., Kakarla, U.K., Naciri, J., SID Digest, p.315 (1997)Google Scholar
11. Shenoy, D., Grüneberg, K., Naciri, J., Shashidhar, R., Jpn. J. Appl. Phys. 84, 4573 (1998)Google Scholar
12. Shenoy, D., Grüneberg, K., Naciri, J., Shashidhar, R., Nastishyn, Y., Pollack, R., Lavrentovich, O., SPIE, 3635, 23 (1999)Google Scholar
13. Naciri, J., Fang, J.Y., Moore, M., Shenoy, D., Dulcey, C.S., Shashidhar, R., Chem. Mat. 12, 3288 (2000)Google Scholar
14. Jain, S.C., Tanwar, V.K., Dixit, V., Verma, S.P., Samanta, S.B., Appl. Surf. Sci. 182/3-4, 350 (2001)Google Scholar
15. Gibbons, W.M., Shannon, P.J., Sun, S.-T. and Swetlin, B.J., Nature 351, 49 (1991)Google Scholar
16. Schadt, M., Sieberle, H., Schuster, A., Nature 381, 212 (1996)Google Scholar
17. Jain, S.C., Kitzerow, H.-S. and Appl. Phys. Lett. 537, 453 (1994)Google Scholar
18. Ichimura, K., Chem Rev. 100, 1847 (2000)Google Scholar
19. Dantsker, D., Kumar, J., Tripathy, S.K., J. Appl. Phys. 89, 4318 (2001)Google Scholar
20. Kang, W.-S. and Kim, H.-W. and Kim, J.-D. and Liquid Crystals 28, 1715 (2001)Google Scholar