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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 4404–4411

Photo- and electro-isomerization of azobenzenes based on polymer-dispersed liquid crystals doped with azobenzenes and their applications

Yen-Chen Liu, Ko-Ting Cheng, Hsin-Fu Chen, and Andy Ying-Guey Fuh  »View Author Affiliations

Optics Express, Vol. 22, Issue 4, pp. 4404-4411 (2014)

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We report the photo-isomerization and electro-isomerization effects in azobenzenes-doped polymer-dispersed liquid crystals during the switching of the liquid crystal (LC) device between transparent (cis-isomers dominant) and scattering states (trans-isomers dominant). The isothermal phase transition, which is a result of the illumination of UV light and the application of DC voltage, was the main mechanism to switch the LC device between transparency, scattering, and gray scales. This study discusses in detail the variations in the population of cis-isomers as functions of the period and the amplitude of the applied DC voltage.

© 2014 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.5470) Materials : Polymers
(230.0230) Optical devices : Optical devices

ToC Category:
Optical Devices

Original Manuscript: November 26, 2013
Revised Manuscript: January 29, 2014
Manuscript Accepted: January 31, 2014
Published: February 19, 2014

Yen-Chen Liu, Ko-Ting Cheng, Hsin-Fu Chen, and Andy Ying-Guey Fuh, "Photo- and electro-isomerization of azobenzenes based on polymer-dispersed liquid crystals doped with azobenzenes and their applications," Opt. Express 22, 4404-4411 (2014)

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