Low-power operation of vertically aligned liquid-crystal system via anatase-TiO2 nanoparticle dispersion

Won Kyu Lee, Ji Hyuk Choi, Hyun Jae Na, Ji Hun Lim, Jeong Min Han, Jeong Yeon Hwang, Dae Shik Seo

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


Electro-optic performance of a liquid-crystal (LC) system is enhanced by TiO2 nanoparticle dispersed in nematic liquid crystal (NLC). The 2.5 V threshold voltage of LC for device operation is lowered to 0.5 V through TiO2 nanoparticle mixing up to 2 wt.%. To characterize the shape and size distribution of the nanoparticles, high-resolution transmission electron microscopy is employed. Transmittance spectra for the TiO2 dispersed LC structure and nondispersed LC structure showed that transparency of the TiO2 dispersed LC is similar to that of pure liquid LC.

Original languageEnglish
Pages (from-to)3653-3655
Number of pages3
JournalOptics Letters
Issue number23
Publication statusPublished - 2009 Dec 1

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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