Effect of cadmium selenide quantum dots on the dielectric and physical parameters of ferroelectric liquid crystal

Journal Article · Mon Jul 21 04:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4890352· OSTI ID:22308490

Singh, D. P.; Gupta, S. K.; Varia, M. C.; Kumar, S. ^[1]; Kumar, A. ^[2]

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1. Soft Condensed Matter Laboratory, Raman Research Institute, C. V. Raman Avenue, Sadashivnagar, Bangalore 560080 (India)
2. Department of Physics, Deshbandhu College, Delhi University, Delhi-110019 (India)

The effect of cadmium selenide quantum dots (CdSe QDs) on the dielectric relaxation and material constants of a ferroelectric liquid crystal (FLC) has been investigated. Along with the characteristic Goldstone mode, a new relaxation mode has been induced in the FLC material due to the presence of CdSe QDs. This new relaxation mode is strongly dependent on the concentration of CdSe QDs but is found to be independent of the external bias voltage and temperature. The material constants have also been modified remarkably due to the presence of CdSe QDs. The appearance of this new relaxation phenomenon has been attributed to the concentration dependent interaction between CdSe QDs and FLC molecules.

• OSTI ID: 22308490
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 3 Vol. 116; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CADMIUM SELENIDES
CONCENTRATION RATIO
DIELECTRIC PROPERTIES
ELECTRIC POTENTIAL
FERROELECTRIC MATERIALS
INTERACTIONS
LIQUID CRYSTALS
MOLECULES
QUANTUM DOTS
RELAXATION
SIMULATION