Electrically Switchable and Permanently Stable Light Scattering Modes by Dynamic Fingerprint Chiral Textures

ACS Applied Materials and Interfaces

Volumn 8, Issue 16, 2016, Pages 10483-10493

  Cheng, Ko Ting ^a   Lee, Po Yi ^a   Qasim, Malik M ^b   Liu, Cheng Kai ^a   Cheng, Wen Fa ^a   Wilkinson, Timothy D ^b  

^a NATIONAL CENTRAL UNIVERSITY   (Taiwan)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

bistability; cholesterics; dynamic scattering; fingerprint texture; light modulator; liquid crystal

Indexed keywords

CHAINS; DIELECTRIC MATERIALS; DOPING (ADDITIVES); ELECTRIC FIELD EFFECTS; ELECTRIC FIELDS; ELECTRIC SWITCHES; ELECTROMAGNETIC WAVE SCATTERING; LIGHT SCATTERING; LIQUID CRYSTALS; MODULATORS; NEMATIC LIQUID CRYSTALS; OPTICAL BISTABILITY;

CHOLESTERICS; DIFFERENT FREQUENCY; DYNAMIC SCATTERING; LOW OPERATING VOLTAGE; NEGATIVE DIELECTRIC; NEMATIC LIQUIDS; POLARIZATION INDEPENDENT; WIDE VIEWING ANGLE;

LIGHT MODULATORS;

EID: 84966415492     PISSN: 19448244     EISSN: 19448252     Source Type: Journal    
DOI: 10.1021/acsami.5b12854     Document Type: Article

References (28)

1. Blinov, L. M.; Chigrinov, V. G. Electrooptic Effects in Liquid Crystal Materials; Springer: New York, 1996.
2. Heilmeier, G. H.; Zanoni, L. A.; Barton, L. Dynamic Scattering: A New Electrooptic Effect in Certain Classes of Nematic Liquid Crystals Proc. IEEE 1968, 56, 1162-1171 10.1109/PROC.1968.6513
3. Heilmeier, G. H.; Goldmacher, J. E. A New Electric Field Controlled Reflective Optical Storage Effect in Mixed Liquid Crystal Systems Proc. IEEE 1969, 57, 34-38 10.1109/PROC.1969.6866
4. Coates, D.; Crossland, W. A.; Morrissy, J. H.; Needham, B. Electrically Induced Scattering Textures in Smectic A Phases and Their Electrical Reversal J. Phys. D: Appl. Phys. 1978, 11, 2025-2034 10.1088/0022-3727/11/14/012
5. Gardiner, D. J.; Morris, S. M.; Coles, H. J. High-Efficiency Multistable Switchable Glazing Using Smectic A Liquid Crystals Sol. Energy Mater. Sol. Cells 2009, 93, 301-306 10.1016/j.solmat.2008.10.023
6. Gardiner, D. J.; Coles, H. J. Organosiloxane Liquid Crystals for Fast-Switching Bistable Scattering Devices J. Phys. D: Appl. Phys. 2006, 39, 4948-4955 10.1088/0022-3727/39/23/008
7. Morris, S. M.; Gardiner, D. J.; Qasim, M. M.; Hands, P. J. W.; Wilkinson, T. D.; Coles, H. J. Lowering the Excitation Threshold of a Random Laser using the Dynamic Scattering States of an Organosiloxane Smectic A Liquid Crystal J. Appl. Phys. 2012, 111, 033106 10.1063/1.3681898
8. Khan, A. A.; Morris, S. M.; Gardiner, D. J.; Qasim, M. M.; Wilkinson, T. D.; Coles, H. J. Improving the Stability of Organosiloxane Smectic A Liquid Crystal Random Lasers using Redox Dopants Opt. Mater. 2015, 42, 441-448 10.1016/j.optmat.2015.02.002
9. Lu, Y.; Guo, J.; Wang, H.; Wei, J. Flexible Bistable Smectic-A Liquid Crystal Device Using Photolithography and Photoinduced Phase Separation Adv. Cond. Matter. Phys. 2012, 2012, 1-9 10.1155/2012/843264
10. Lu, Y.; Wei, J.; Shi, Y.; Jin, O.; Guo, J. Effects of Fabrication Condition on The Network Morphology and Electro-Optical Characteristics of Polymer-Dispersed Bistable Smectic A Liquid Crystal Device Liq. Cryst. 2013, 40, 581-588 10.1080/02678292.2013.776708
11. Yang, K. J.; Yoon, D. Y. Electro-Optical Characteristics of Dye-Doped Polymer Dispersed Liquid Crystals J. Ind. Eng. Chem. 2011, 17, 543-548 10.1016/j.jiec.2010.12.018
12. Chen, Y. D.; Fuh, A. Y. G.; Cheng, K. T. Particular Thermally Induced Phase Separation of Liquid Crystal and Poly(N-Vinyl Carbazole) Films and its Application Opt. Express 2012, 20, 16777-16784 10.1364/OE.20.016777
13. Chen, J. W.; Huang, C. C.; Chao, C. Y. Supramolecular Liquid-Crystal Gels Formed by Polyfluorene-Based π-Conjugated Polymer for Switchable Anisotropic Scattering Device ACS Appl. Mater. Interfaces 2014, 6, 6757-6764 10.1021/am500518c
14. Hsiao, Y. C.; Tang, C. Y.; Lee, W. Fast-switching Bistable Cholesteric Intensity Modulator Opt. Express 2011, 19, 9744-9749 10.1364/OE.19.009744
15. Kumar, P.; Kang, S. W.; Lee, S. H. Advanced Bistable Cholesteric Light Shutter with Dual Frequency Nematic Liquid Crystal Opt. Mater. Express 2012, 2, 1121-1134 10.1364/OME.2.001121
16. Li, Q.; Green, L.; Venkataraman, N.; Shiyanovskaya, I.; Khan, A.; Urbas, A.; Doane, J. W. Reversible Photoswitchable Axially Chiral Dopants with High Helical Twisting Power J. Am. Chem. Soc. 2007, 129, 12908-12909 10.1021/ja0747573
17. White, T. J.; Cazzell, S. A.; Freer, A. S.; Yang, D. K.; Sukhomlinova, L.; Su, L.; Kosa, T.; Taheri, B.; Bunning, T. J. Widely Tunable, Photoinvertible Cholesteric Liquid Crystals Adv. Mater. 2011, 23, 1389-1392 10.1002/adma.201003577
18. White, T. J.; Bricker, R. L.; Natarajan, L. V.; Tabiryan, N. V.; Green, L.; Li, Q.; Bunning, T. J. Phototunable Azobenzene Cholesteric Liquid Crystals With 2000 nm Range Adv. Funct. Mater. 2009, 19, 3484-3488 10.1002/adfm.200900396
19. Li, Q.; Li, Y.; Ma, J.; Yang, D. K.; White, T. J.; Bunning, T. J. Directing Dynamic Control of Red, Green, and Blue Reflection Enabled by a Light-Driven Self-Organized Helical Superstructure Adv. Mater. 2011, 23, 5069-5073 10.1002/adma.201103362
20. Lin, T. H.; Li, Y.; Wang, C. T.; Jau, H. C.; Chen, C. W.; Li, C. C.; Bisoyi, H. K.; Bunning, T. J.; Li, Q. Red, Green and Blue Reflections Enabled in an Optically Tunable Self-Organized 3D Cubic Nanostructured Thin Film Adv. Mater. 2013, 25, 5050-5054 10.1002/adma.201300798
21. Morris, S. M.; Qasim, M.; Cheng, K. T.; Castles, F.; Ko, D. H.; Gardiner, D. J.; Nosheen, S.; Wilkinson, T. D.; Coles, H. J.; Burgess, C.; Lee, H. Optically Activated Shutter using a Photo-Tunable Short-Pitch Chiral Nematic Liquid Crystal Appl. Phys. Lett. 2013, 103, 101105 10.1063/1.4818679
22. Xie, Y.; Fu, D.; Jin, O.; Zhang, H.; Wei, J.; Guo, J. Photoswitchable Molecular Switches Featuring Both Axial and Tetrahedral Chirality J. Mater. Chem. C 2013, 1, 7346-7356 10.1039/c3tc31488j
23. Guo, J.; Wang, J.; Zhang, J.; Shi, Y.; Wang, X.; Wei, J. Photo- and Thermal Switching of Blue Phase Films Reflecting Both Right- and Left-Circularly Polarized Light J. Mater. Chem. C 2014, 2, 9159-9166 10.1039/C4TC01638F
24. Škarabot, M.; Ravnik, M.; Žumer, S.; Tkalec, U.; Poberaj, I.; Babič, D.; Osterman, N.; Muševič, I. Interactions of quadrupolar nematic colloids Phys. Rev. E 2008, 77, 031705 10.1103/PhysRevE.77.031705
25. Geng, J.; Dong, C.; Zhang, L.; Ma, Z.; Shi, L.; Cao, H.; Yang, H. Electrically Addressed and Thermally Erased Cholesteric Cells Appl. Phys. Lett. 2006, 89, 081130 10.1063/1.2339026
26. Fuh, A. Y. G.; Wu, Z. H.; Cheng, K. T.; Liu, C. K.; Chen, Y. D. Direct Optical Switching of Bistable Cholesteric Textures in Chiral Azobenzene-Doped Liquid Crystals Opt. Express 2013, 21, 21840-21846 10.1364/OE.21.021840
27. Marusii, T. Ya.; Reznikov, Yu. A.; Reshetnyak, V. Yu.; Soskin, M. S.; Khizhnyak, A. I. Scattering of Light by Nematic Liquid Crystals in Cells with a Finite Energy of the Anchoring of the Director to The Wails Sov. Phys. JETP 1986, 64, 502-507
28. Wu, B. G.; West, J. L.; Doane, J. W. Angular discrimination of light transmission through polymer-dispersed liquid-crystal films J. Appl. Phys. 1987, 62, 3925-3931 10.1063/1.339211