PROJECT TITLE :
Homogeneous Liquid Crystal Alignment on Ion Beam-Induced Y2Sn2O7 Layers
Y2Sn2O7 nanoparticle layer fabricated by ion beam (IB) irradiation after annealing is reported here. Spherical particles were induced when IB irradiation as demonstrated by field emission scanning electron microscopy. When this layer was used as an alignment layer, homogeneous alignment of nematic liquid crystals (LCs) was observed with a small pretilt angle because of van der Waals interactions between LCs and also the Y2Sn2O7 layer and interactions between benzene rings of the LCs and broken chemical bonds. The ensuing electric-controlled twist nematic cell showed excellent electrical-optical properties, indicating that our approach holds nice potential for making industrial LC displays (LCDs).
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