Thermodynamically Stable Dispersions of Quantum Dots in a Nematic Liquid Crystal

Langmuir ◽  
2013 ◽  
Vol 29 (30) ◽  
pp. 9301-9309 ◽  
Author(s):  
Maksym F. Prodanov ◽  
Nataliya V. Pogorelova ◽  
Alexander P. Kryshtal ◽  
Andrey S. Klymchenko ◽  
Yves Mely ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal

scholarly journals Quantum-dots-dispersed bent-core nematic liquid crystal and cybotactic clusters: Experimental and theoretical insights

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Sourav Patranabish ◽  
Yiwei Wang ◽  
Aloka Sinha ◽  
Apala Majumdar
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal

scholarly journals Effect of Doping ofCd1−xZnxS/ZnS Core/Shell Quantum Dots in Negative Dielectric Anisotropy Nematic Liquid Crystal p-Methoxybenzylidene p-Decylaniline

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 605
Author(s):  
Ayushi Rastogi ◽  
Fanindra Pandey ◽  
Rajiv Manohar ◽  
Shri Singh
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Dielectric Permittivity ◽  
Nematic Liquid Crystal ◽  
Phase Shifters ◽  
Ion Trapping ◽  
Dielectric Anisotropy ◽  
Core Shell ◽  
Optical Parameters ◽  
Dielectric Parameters

We report the effect of the doping of Cd1−xZnxS/ZnS core/shell quantum dots (CSQDs) in nematic liquid crystal p-methoxybenzylidenep-decylaniline (MBDA) at 0.05 wt/wt%, 0.1 wt/wt%, 0.15 wt/wt%, 0.2 wt/wt%, 0.25 wt/wt%, and 0.3 wt/wt% concentrations of CSQDs in MBDA. Dielectric parameters with and without bias with respect to frequency have been investigated. The change in electro-optical parameters with temperature has also been demonstrated. The increase in the mean dielectric permittivity was found due to the large dipole moment of CSQDs, which impose stronger interactions with the liquid crystal molecules. The dielectric anisotropy changes sign on doping CSQDs in MBDA liquid crystal. It was concluded that the CSQD doping noticeably increased the dielectric permittivity of nematic MBDA in the presence of an electric field. The doping of CSQDs in nematic MBDA liquid crystal reduced the ion screening effect effectively. This phenomenon is attributed to the competition between the generated ionic impurities during the assembling process and the ion trapping effect of the CSQDs. The rotational viscosity of nematic liquid crystal decreased with increasing concentration of the CSQDs, with a faster response time observed for the 0.05 wt/wt% concentration. The birefringence of the doped system increased with the inclusion of CSQDs in MBDA. These results find application in the field of display devices, phase shifters, LC – gratings, TIR waveguide, industries, and projectors.

scholarly journals Nanocomposites of a nematic liquid crystal doped with magic-sized CdSe quantum dots

2011 ◽  
Vol 21 (34) ◽  
pp. 12710 ◽  
Author(s):  
Javad Mirzaei ◽  
Martin Urbanski ◽  
Kui Yu ◽  
Heinz-S. Kitzerow ◽  
Torsten Hegmann
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Cdse Quantum Dots

Effect of dispersed CdSe/ZnS quantum dots on optical and electrical characteristics of nematic liquid crystal cells

2011 ◽  
Vol 37 (11) ◽  
pp. 1011-1014 ◽  
Author(s):  
E. A. Konshina ◽  
E. O. Gavrish ◽  
A. O. Orlova ◽  
M. V. Artem’ev
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Electrical Characteristics ◽  
Crystal Cells

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

2015 ◽  
Author(s):  
M. A. Kurachkina ◽  
D. P. Shcherbinin ◽  
E. A. Konshina
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Dielectric Properties ◽  
Nematic Liquid Crystal ◽  
Semiconductor Quantum Dots

Chemically and thermally stable, emissive carbon dots as viable alternatives to semiconductor quantum dots for emissive nematic liquid crystal–nanoparticle mixtures with lower threshold voltage

2015 ◽  
Vol 43 (2) ◽  
pp. 183-194 ◽  
Author(s):  
Martin Urbanski ◽  
Javad Mirzaei ◽  
Anshul Sharma ◽  
Daniel Hofmann ◽  
Heinz-S. Kitzerow ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Threshold Voltage ◽  
Carbon Dots ◽  
Semiconductor Quantum Dots ◽  
Lower Threshold ◽  
Thermally Stable

Ionic impurities in nematic liquid crystal doped with quantum dots CdSe/ZnS

2016 ◽  
Vol 44 (4) ◽  
pp. 648-655 ◽  
Author(s):  
D.P. Shcherbinin ◽  
E.A. Konshina
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Ionic Impurities
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