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Title: SiO2 Nanoparticle Sequestration via Reactive Functionalization in Holographic Polymer-Dispersed Liquid Crystals

Journal Article · · Advanced Materials
 [1];  [2];  [3];  [3];  [4];  [4];  [2]
  1. Air Force Research Lab., Wright-Patterson AFB, OH (United States); University of Illinois
  2. Univ. of Illinois at Urbana-Champaign, IL (United States)
  3. Science Applications International Corporation, Beavercreek, OH (United States)
  4. Air Force Research Lab., Wright-Patterson AFB, OH (United States)
+ Show Author Affiliations

Holographic photopolymerization of reactively functionalized silica nanoparticles in polymer/liquid-crystal systems leads to sequestration of the silica nanoparticles in the polymeric domain of holographic polymer-dispersed liquid-crystals Bragg gratings. Here, excellent dispersion of the nanoparticles maintains the optical properties of the reflection grating without additional scattering while lowering the voltage necessary to switch the state of the grating.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Science Foundation
Grant/Contract Number:
FG02-07ER46471; FG02-07ER46453
OSTI ID:
1876377
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 36 Vol. 21; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (10)

Morphology of anisotropic polymer-dispersed liquid crystals and the effect of monomer functionality journal December 1997
One-Step, Micrometer-Scale Organization of Nano- and Mesoparticles Using Holographic Photopolymerization: A Generic Technique journal October 2001
TiO2 Nanoparticle-Photopolymer Composites for Volume Holographic Recording journal October 2005
Optically Switchable Bragg Reflectors journal August 2004
Nanosized-Silica-Reinforced Holographic Polymer-Dispersed Liquid Crystals journal April 2006
Monodisperse colloidal silica spheres from tetraalkoxysilanes: Particle formation and growth mechanism journal December 1992
Electro-optics and structure of polymer dispersed liquid crystals doped with nanoparticles of inorganic materials journal April 2007
Silica-nanoparticle-dispersed methacrylate photopolymers with net diffraction efficiency near 100% journal January 2004
Development of a new kind of switchable holographic grating made of liquid-crystal films separated by slices of polymeric material journal January 2004
Electrically Switchable Bragg Gratings from Liquid Crystal/Polymer Composites journal January 2000

Cited By (5)

A temperature and electric field-responsive flexible smart film with full broadband optical modulation journal January 2017
Silica aerogel films via ambient pressure drying for broadband reflectors journal January 2018
Enhanced electrophoretic separation of proteins by tethered SiO2 nanoparticles in an SDS-polyacrylamide gel network journal January 2020
Holographic nanocomposites for recording polymer-nanoparticle periodic structures: II. Mechanism of formation of polymer-nanoparticle bulk periodic structure and effect of parameters of forming field on structure efficiency journal January 2011
Mutual diffusion dynamics with nonlocal response in SiO_2 nanoparticles dispersed PQ-PMMA bulk photopolymer journal July 2011

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Related Subjects

36 MATERIALS SCIENCE
Bragg gratings
holographic photopolymerization
holographic polymer dispersed liquid crystals
nanoparticle assembly
silica nanoparticles