Semiconductor Physics, Quantum Electronics & Optoelectronics. 2006. V. 9, N 2. P. 061-064.
Micropatterning in bistable cholesteric device
with Bragg’s reflection
1Chernigov State University, 53, G. Polubotka str., 14038 Chernigov, Ukraine, e-mail: skucheev@yahoo.com
Abstract. In this work, the method to form bistable patterning in a cholesteric cell with Bragg’s reflection in the visible spectral range is demonstrated. In order to reach this, we used a Si/SiO 2 structure in which a potential relief on SiO 2 surface is induced due to enrichment and depletion of required form areas of the silicon near-surface layer during external electric field action. The patterning of enrichment is determined by the positive charge embedded into SiO 2 film, which is formed by thermodiffusion of aluminum atoms. Keywords: liquid crystal, selective reflection, silicon, patterning electrode.
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