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Journal of Display Technology

Journal of Display Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 2, Iss. 3 — Sep. 1, 2006
  • pp: 247–253

High Performance Room Temperature Nematic Liquid Crystals Based on Laterally Fluorinated Isothiocyanato-Tolanes

Sebastian Gauza, Shin-Tson Wu, Anna Spadło, and Roman Dabrowski

Journal of Display Technology, Vol. 2, Issue 3, pp. 247-253 (2006)


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Abstract

High birefringence and low viscosity isothiocyanates liquid crystal single compounds and eutectic mixtures, based solely on laterally fluorinated aromatic rigid core structures, are reported. Extraordinarily high values of figure-of-merit were observed at room temperature and also elevated temperatures for the nematic mixtures we formulated. Potential applications of such mixtures for laser beam steering at λ=1.55 μm using optical phased arrays are emphasized.

© 2006 IEEE

Citation
Sebastian Gauza, Shin-Tson Wu, Anna Spadło, and Roman Dabrowski, "High Performance Room Temperature Nematic Liquid Crystals Based on Laterally Fluorinated Isothiocyanato-Tolanes," J. Display Technol. 2, 247-253 (2006)
http://www.opticsinfobase.org/jdt/abstract.cfm?URI=jdt-2-3-247


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References

  1. S. T. Wu, D. K. Yang, Reflective Liquid Crystal Displays (Wiley, 2001).
  2. S. Kibe, N. Hattori, M. Ushioda, H. Yamamoto, S. Matsui, "Novel liquid-crystal materials for AMLCDs," J. Soc. Inf. Display 11, 449-455 (2003).
  3. T. Geelhaar, K. Tarumi, H. Hirschmann, "Trends in LC materials," SID Symp. Dig. (1996) pp. 167-170.
  4. Y. Goto, T. Ogawa, S. Sawada, S. Sugimori, "Fluorinated liquid crystals for active matrix displays," Mol. Cryst. Liq. Cryst. 209, 1-7 (1991).
  5. P. F. McManamon, T. A. Dorschner, D. L. Corkum, L. Friedman, D. S. Hobbs, M. Holz, S. Liberman, H. Q. Nguyen, D. P. Resler, R. C. Sharp, E. A. Watson, "Optical phased array technology," Proc. IEEE 84, 268-298 (1996).
  6. Y. Lu, F. Du, Y. H. Lin, S. T. Wu, "Variable optical attenuator based on polymer-stabilized twisted nematic liquid crystal," Opt. Expr. 12, 1221-1227 (2004).
  7. J. L. Fergason, "Polymer encapsulated nematic liquid crystals for display and light control applications," SID Symp. Dig. (1985) pp. 68-70.
  8. R. L. Sutherland, V. P. Tondiglia, L. V. Natarajan, "Electrically switchable volume gratings in polymer-dispersed liquid crystals," Appl. Phys. Lett. 64, 1074-1076 (1994).
  9. N. Mizoshita, K. Hanabusa, T. Kato, "Fast and high-contrast electro-optical switching of liquid-crystalline physical gels: formation of oriented microphase-separated structures," Adv. Funct. Mater. 13, 313-317 (2003).
  10. Y. H. Fan, H. W. Ren, S. T. Wu, "Normal mode anisotropic liquid crystal gels," Appl. Phys. Lett. 82, 2945-2947 (2003).
  11. S. T. Wu, U. Efron, L. D. Hess, "Birefringence measurements of liquid crystals," Appl. Opt. 23, 3911-3915 (1984).
  12. S. Gauza, C. H. Wen, S. T. Wu, N. Janarthanan, C. S. Hsu, "Super high birefringence isothiocyanato biphenyl-bistolane liquid crystals," Jpn. J. Appl. Phys. 43, 7634-7638 (2004).
  13. C. Sekine, K. Fujisawa, K. Iwakura, M. Minai, "High birefringence phenylacetylene liquid crystals with low viscosity," Mol. Cryst. Liq. Cryst. 364, 711-718 (2000).
  14. A. Spadlo, R. Dabrowski, M. Filipowicz, Z. Stolarz, J. Przedmojski, S. Gauza, Y. H. Fan, S. T. Wu, "Synthesis, mesomorphic and optical properties of isothiocyanatotolanes," Liq. Cryst. 30, 191-198 (2003).
  15. I. K. Huh, Y. B. Kim, "Fluoro-isothiocyanated liquid crystal materials with high dielectric anisotropy and voltage holding ratio," Jpn. J. Appl. Phys. 41, 6466-6470 (2002).
  16. J. A. Malecki, J. Nowak, "Intermolecular interactions in benzene solutions of 4-heptyl-3$^{\prime}$-cyano-biphenyl studied with non-linear dielectric effects," J. Mol. Liquids 81, 245-252 (1999).
  17. S. T. Wu, "Birefringence dispersions of liquid crystals," Phys. Rev. A 30, 1270-1274 (1986).
  18. S. T. Wu, A. M. Lackner, U. Efron, "Optimal operation temperature of liquid crystal modulators," Appl. Opt. 26, 3441-3445 (1987).
  19. S. T. Wu, J. D. Margerum, H. B. Meng, L. R. Dalton, C. S. Hsu, S. H. Lung, "Room-temperature diphenyl-diacetylene liquid crystals," Appl. Phys. Lett. 61, 630-632 (1992).
  20. M. D. Wand, R. T. Vohra, W. N. Thurmes, K. M. More, "Tolane cinnamates-a new class of stable, high birefringence dopants," Ferroelectrics 180, 333-339 (1996).
  21. C. O. Catanescu, L. C. Chien, "High birefringence nematic liquid crystals for display and telecom applications," Mol. Cryst. Liq. Cryst. 411, 93-102 (2004).
  22. S. Gauza, H. Wang, C. H. Wen, S. T. Wu, A. J. Seed, R. Dabrowski, "High birefringence isothiocyanato tolane liquid crystals," Jpn. J. Appl. Phys. 42, 13463-3466 (2003).
  23. R. Dabrowski, J. Przedmojski, A. Spadlo, J. Dziaduszek, M. Tykarska, "Features of the smectic e phases in some strongly polar biphenyls and tolanes," Phase Transition 77, 1103-1110 (2004).
  24. G. W. Gray, D. G. McDonnell, "Synthesis and liquid crystal properties of chiral alkyl-cyano-biphenyls (and -p-terphenyls) and of some related chiral compounds derived from biphenyl," Mol. Cryst. Liq. Cryst. 37, 189-211 (1976).
  25. C. Sekine, K. Iwakura, N. Konya, M. Minai, K. Fujisawa, "Synthesis and properties of some novel high birefringence phenylacetylene liquid crystal materials with lateral substituents," Liq. Cryst. 28, 1375-1387 (2001).
  26. S. T. Wu, U. Finkenzeller, V. Reiffenrath, "Physical properties of diphenyldiacetylenicliquid crystals," J. Appl. Phys. 65, 4372-4376 (1989).
  27. P. T. Lin, S. T. Wu, C. Y. Chang, C. S. Hsu, "UV stability of high birefringence liquid crystals," Mol. Cryst. Liq. Cryst. 411, 243-253 (2004).
  28. C. O. Catanescu, L. C. Chien, "High birefringence difluoro-isothiocyanate biphenyl tolane liquid crystals," Liq. Cryst. 33, 115-120 (2006).
  29. C. H. Wen, S. Gauza, S. T. Wu, "Ultraviolet stability of liquid crystals containing cyano and isothiocyanato terminal groups," Liq. Cryst. 31, 1479-1485 (2004).
  30. I. K. Huh, Y. B. Kim, "Electro-optical properties of liquid crystal mixtures containing fluoroisothiocyanated compounds," Jpn. J. Appl. Phys. 41, 6484-6485 (2002).
  31. S. Gauza, J. Li, S. T. Wu, A. Spadlo, R. Dabrowski, Y. N. Tzeng, K. L. Cheng, "High birefringence and high resistivity isothiocyanate-based nematic liquid crystal mixtures," Liq. Cryst. 32, 1077-1085 (2005).

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