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Nanosized‐Silica‐Reinforced Holographic Polymer‐Dispersed Liquid Crystals
Author(s) -
Kim Eun Hee,
Woo Ju Yeon,
Kim Byung Kyu
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500784
Subject(s) - materials science , nucleation , polymer , diffraction efficiency , liquid crystal , chemical engineering , holography , diffraction , viscosity , elasticity (physics) , composite material , optics , organic chemistry , chemistry , optoelectronics , grating , physics , engineering
Summary: Nanosized silicas added to holographic polymer‐dispersed liquid crystals (HPDLC) provide the resin phase with increased elasticity, dimensional stability, and the high diffraction efficiency of the gratings. On the other hand, nucleation and growth of periodic modulation are delayed, especially with small‐sized silica because of the increased viscosity of the resin mixture. Effects of the LC/resin composition and cell gap on the diffraction efficiency have also been studied.AFM image of silica added HPDLC.