Improvement in holographically formed polymer-dispersed liquid crystal performance through acrylated monomer functionality studies

Adam K. Fontecchio; Christopher C. Bowley; Gregory P. Crawford

doi:10.1117/12.365808

14 October 1999 Improvement in holographically formed polymer-dispersed liquid crystal performance through acrylated monomer functionality studies

Adam K. Fontecchio, Christopher C. Bowley, Gregory P. Crawford

Author Affiliations +

Proceedings Volume 3800, Liquid Crystals III; (1999) https://doi.org/10.1117/12.365808
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

We investigate the effect of monomer blends on the performance of holographically-formed polymer dispersed liquid crystals (H-PDLCs). Difunctional, trifunctional, and hexafunctional urethane acrylate resins are mixed in different ratios to yield monomers characterized by an effective functionality. Reflection H-PDLCs are formed using the different blends. Reflection efficiency and voltage response are measured. Monomer blends prepared with trifunctional/hexafunctional constituents are formed to yield H-PDLCs with higher reflection efficiency than their difunctional/hexafunctional counterparts, but require higher voltages to switch. Scanning electron microscope investigations are also undertaken.

Citation Download Citation

Adam K. Fontecchio, Christopher C. Bowley, and Gregory P. Crawford "Improvement in holographically formed polymer-dispersed liquid crystal performance through acrylated monomer functionality studies", Proc. SPIE 3800, Liquid Crystals III, (14 October 1999); https://doi.org/10.1117/12.365808

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