Enhance the performance of liquid crystal as an optical switch by doping CdS quantum dots

The electrical and optical properties results were studied for Cadmium Sulphide (CdS) Nanoparticles / Nematic liquid crystal (5CB) mixtures. Doping of CdS nanoparticles increases the spontaneous polarization and response time, the increase is due to large dipole-dipole interaction between the liquid...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. Conference series Vol. 1003; no. 1; pp. 12093 - 12100
Main Authors Ahmed, Sudad S, Ibrahim, Rawa K, Al- Naimee, Kais, Naje, Asama N, Ibrahim, Omar A, Majeed, K A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2018
Subjects
Cadmium sulfide
Dipole interactions
Doping
Liquid crystals
Nanoparticles
Nematic crystals
Optical properties
Optical switching
Physics
Quantum dots
Response time
Threshold voltage
Online AccessGet full text

Cover

More Information
Summary:The electrical and optical properties results were studied for Cadmium Sulphide (CdS) Nanoparticles / Nematic liquid crystal (5CB) mixtures. Doping of CdS nanoparticles increases the spontaneous polarization and response time, the increase is due to large dipole-dipole interaction between the liquid crystal (LC) molecules and CdS nanoparticles, which increase the anchoring energy. The electro-optic measurements revealed a decrease (∼40%) in threshold voltage, and faster response time in doped sample cells than Pure 4'-n-pentyl-4-cyanobiphenyl (5CB) nematic liquid crystal.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1003/1/012093