1 June 2015 Spectral and dielectric properties of nematic liquid crystal doped semiconductor quantum dots CdSe/ZnS
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Abstract
We investigated the absorption and luminescence spectra and the low-frequency spectra of dielectric losses of the nematic liquid crystal (NLC) suspensions with quantum dots (QDs) CdSe/ZnS with a core diameter of 3.5 nm and 5.0 nm. The changing of luminescence intensity and dielectric losses in the region below 103 Hz were observed as result variation of a concentration and a QDs size in the spectra of NLC/QDs suspensions in comparison with the pure NLC. Luminescence quenching of the NLC and the increase of dielectric loss in the spectra were found with the increasing CdSe/ZnS concentration in interval between 0.07 - 0.3 wt. %.
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M. A. Kurachkina, M. A. Kurachkina, D. P. Shcherbinin, D. P. Shcherbinin, E. A. Konshina, E. A. Konshina, } "Spectral and dielectric properties of nematic liquid crystal doped semiconductor quantum dots CdSe/ZnS", Proc. SPIE 9519, Nanotechnology VII, 95190Z (1 June 2015); doi: 10.1117/12.2179024; https://doi.org/10.1117/12.2179024
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