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Journal Article Characterization of Electrophoretic Particles for a Reflective Display Device
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Authors
Ji Eun Jung, Chul Am Kim, Seung-Youl Kang, Gi Heon Kim, Ji Young Oh, Kyung Soo Suh
Issue Date
2008-12
Citation
Molecular Crystals and Liquid Crystals, v.492, pp.83-89
ISSN
1542-1406
Publisher
Taylor & Francis
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1080/15421400802333493
Abstract
Titanium dioxide (TiO2) nanoparticles were encapsulated with polystyrene (PS)-based copolymeric materials for an electrophoretic display application. This coating process was performed in order to improve the dispersion stability of electrophoretic pigment particles in a dielectric medium and to reduce the density mismatch between TiO2 and the dielectric medium. The characteristics of polymer-coated TiO2 nanoparticles of the density, chemical structure, particle size, shape, and morphology, were examined respectively by FT-IR, thermogravimetric analysis, particle size analysis, and SEM. Additionally, the electrophoretic mobility of the fabricated nanoparticles with a charge control agent was determined by measurements of the zeta potential.
KSP Keywords
Charge Control, Coating process, Dielectric medium, Display device, Fourier Transform Infrared Spectroscopy(FTIR), Particle size analysis, Pigment particles, Thermogravimetric analysis(TG), TiO2 nanoparticles, chemical structure, dispersion stability