Incorporation of luminescent semiconductor nanoparticles into liquid crystal matrix

Characterization of size of synthesized semiconductor copper indium sulfide (CuInS2) nanoparticles used for doping liquid crystal E7 is presented. The method of production of uniform dispersions of the nanoparticles in liquid crystals avoiding aggregation of the nanoparticles is discussed. It was possible to prepare doped liquid crystal with almost uniform dispersion of nanoparticles in the cell, which are visible as defects in homogenous liquid crystal phase. Electrorefractive and photo-electrorefractive characterizations of the mixtures have been done with pure E7 sample as a reference and the results are discussed.