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Electro-optic bistability in organosiloxane bimesogenic liquid crystals
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gardiner, Damian J. Davenport, Christopher James Newton, Jm Coles, Harry J. |
| Copyright Year | 2006 |
| Abstract | In this paper we report the electro-optic characterization of two homologous series of low molar mass bimesogenic siloxane-containing liquid crystals. The materials used have two alkoxycyanobiphenyl mesogenic units with variable alkyl chain joined by a two- or five-siloxane moiety and all exhibit stable smectic A mesophases over wide temperature ranges (up to 100°C wide). Due to their inherent ruggedness these materials have potential for use in polarizer-free, bistable, scattering display and storage devices. The bistable modes are at low and high frequencies. The low frequency mode (write) is a highly scattering focal conic texture resulting from electrohydrodynamic instabilities while the high frequency mode (erase) is a clear state due to dielectric reorientation of the material. Both modes are preserved upon removal of the applied electric field. We present threshold voltages as a function of temperature, frequency, and cell thickness and response times as a function of voltage for each of the bistab... |
| Starting Page | 113517 |
| Ending Page | 113517 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.2203391 |
| Volume Number | 99 |
| Alternate Webpage(s) | http://www-g.eng.cam.ac.uk/CMMPE/JAP_99_113517_2006.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.2203391 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
