Spectral and dielectric properties of nematic liquid crystal doped semiconductor quantum dots CdSe/ZnS

M. A. Kurachkina; D. P. Shcherbinin; E. A. Konshina

doi:10.1117/12.2179024

1 June 2015 Spectral and dielectric properties of nematic liquid crystal doped semiconductor quantum dots CdSe/ZnS

M. A. Kurachkina, D. P. Shcherbinin, E. A. Konshina

Proceedings Volume 9519, Nanotechnology VII; 95190Z (2015) https://doi.org/10.1117/12.2179024
Event: SPIE Microtechnologies, 2015, Barcelona, Spain

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. %.

Citation Download Citation

M. A. Kurachkina, D. P. Shcherbinin, and 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); https://doi.org/10.1117/12.2179024

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