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Chemically Functionalized Gold Nanosphere-Blended Nematic Liquid Crystals for Photonic Applications
Bhupendra Pratap Singh1, Samiksha Sikarwar2, Shikha Agarwal1
1Liquid Crystal Research Laboratory, Department of Physics, University of Lucknow, Lucknow226007, India.
ACS Omega
|January 23, 2023
Summary
This study introduces novel electroluminescent composite systems using nematic liquid crystals blended with gold nanospheres. These materials exhibit enhanced light-emission and improved electro-optical properties for advanced display applications.
Area of Science:
- Materials Science
- Optoelectronics
- Nanotechnology
Background:
- Growing demand for functional materials in organic optoelectronics.
- Need for materials with tailored light-emissive properties.
Purpose of the Study:
- To develop highly emissive and aggregation-induced emission (AIE) electroluminescent composite systems.
- To investigate the electro-optical properties of nematic liquid crystals (NLC) blended with gold nanospheres (GNSs).
Main Methods:
- Blending polyethylene-functionalized gold nanospheres (GNSs) with nematic liquid crystals (NLC).
- Characterization of electro-optical properties, including threshold voltage, fall time, and rotational viscosity.
- Analysis of UV absorbance and luminescence properties.
Main Results:
- Significant reduction in threshold voltage (around 24%).
- Substantial decrease in fall time and rotational viscosity with increasing GNS concentration.
- Enhanced UV absorbance and luminescence attributed to surface plasmon resonance and AIE effect.
Conclusions:
- The developed composite systems exhibit superior electro-optical and luminescence properties.
- The enhanced properties make these materials suitable for next-generation display applications.
- Synergistic effects between GNSs and NLC contribute to improved material performance.
