Electro-optical and dielectric properties of CdSe quantum dots and 6CHBT liquid crystals composites

Journal Article · Sat Nov 15 00:00:00 EST 2014 · AIP Advances

DOI:https://doi.org/10.1063/1.4901908· OSTI ID:22420157

Singh, U. B.; Dhar, R; Pandey, A. S. ^[1]; Kumar, S. ^[2]; Dabrowski, R. ^[3]

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1. Centre of Material Sciences, Institute of Interdisciplinary Studies, University of Allahabad, Allahabad-211002 (India)
2. Raman Research Institute, C. V. Raman Avenue, Bangalore-560080 (India)
3. Institute of Applied Sciences and Chemistry, Military University of Technology, 00-908-Warswa (Poland)

We have prepared the composites of a room temperature nematic liquid crystal namely 4-(trans-4-n-hexylcyclohexyl) isothiocyanatobenzoate (6CHBT) and Cadmium Selenide Quantum Dots (CdSe-QDs) and investigated their electro-optical and dielectric properties. Effect of dispersion of CdSe-QDs on various electro-optical and display parameters of host liquid crystalline material have been studied. Physical parameters, such as switching threshold voltage and splay elastic constant have been altered drastically for composites. Dispersion of QDs in a liquid crystals medium destabilizes nematic ordering of the host and decreases the nematic-to-isotropic transition temperature.

• OSTI ID: 22420157
• Journal Information: AIP Advances, Vol. 4, Issue 11; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CADMIUM
CADMIUM SELENIDES
DIELECTRIC PROPERTIES
DISPERSIONS
ELECTRIC POTENTIAL
LIQUID CRYSTALS
QUANTUM DOTS
TRANSITION TEMPERATURE