Synthesis and characterization of Aluminium oxide Nano particles doped polymer dispersed liquid crystal films

ABSTRACT: Alumina is a material which is used as catalyst, catalytic supports, absorbent and wearing resistant coating. This research focuses on synthesizing and characterizing of alumina nanoparticles synthesized using simple sol-gel method. Iron (III) nitrate 9-hydrate will be used as precurs

Project Title

Synthesis and characterization of Aluminium oxide Nano particles doped polymer dispersed liquid crystal films

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

ABSTRACT: Alumina is a material which is used as catalyst, catalytic supports, absorbent and wearing resistant coating. This research focuses on synthesizing and characterizing of alumina nanoparticles synthesized using simple sol-gel method. Iron (III) nitrate 9-hydrate will be used as precursor in synthesizing aluminum oxide (Al2O3) nanoparticles (AlO-NPs). Polymer dispersed liquid crystal (PDLC) is an important electrical switching material, in which liquid crystal is in the dispersed phase and is uniformly distributed in the polymer matrix and it has been employed in various applications: electro-optic display devices/display technologies, field-effect transistors (FETs), energy storage, and solar energy harvesting. 
In the present study, nanoparticles (AlO-NPs) doped PDLCs (smart glass) will be synthesized using epoxy resin monomers/hardener liquid crystal (NLCs)/ AlO-NPs nanoparticles by the polymerization induced phase separation (PIPS) heat curing process. Doping technique using AlO-NPs will be employed in the proposed study to check the influence of the dielectric constant and refractive index at the polymer/LC interface. The morphology and textural properties of the Al-O-NPs and synthesized smart glass panel films (PDLC) will be investigated via employing an X-ray diffractometer (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and UV-Vis spectrophotometry and liquid crystal device (LCD) parameters tester. The influence of doping using different metals with different concentrations and liquid crystal contents on the diffraction efficiency, and driving voltage will be investigated by measuring optical and electro-optical properties of the PDLCs films.

Project Objectives

• To synthesize the AIO-NPs will be carried out via facile approach.
•     Doping of the AIO-NPs with smart glass films enhance the optical, thermal and mechanical stability of the polymer matrix and interaction with the liquid crystal as well as their electro-optical properties.
•     To introduce the epoxy monomers thin films system in smart glass technology to enhance its application in optoelectronics, photonics and various display devices.
•     To introduce this technology in Pakistani universities as well as polymer and glass industries.

Project Implementation Method

Implementation method: 1. Synthesis of AlO-NPs. 2. Dopping of the NPs into PDLC films. 3. Characterization of the nanoparticles via XRD, FTIR, SEM and UV Spectroscopy. 4. Application of AlONPs com PDLC films.

The influence of doping using different metals with different concentrations and liquid crystals content and diffiraction efficiency, driving voltage and responce time will be investigated by measuring optical and electro optical properties of PDLC films.Moreover a comparison will be carried by between pure PDLC, and the AIO-NPs doped PDLC to check the voltage, driving voltage, and for other purposes to enhance the electro-optical performance of PDLC.This study will open the door not only for new approach to optimize the electro-optical properties of smart glass technology by introducing the epoxy resins with AIO-NPs but also will provide the new possebilities to achieve a wide range of applications particularly for energy efficient PDLC and display projectors.

Benefits of the Project

•    To proposed study is designed to synthesize the PDLC composite films with significantly low driving voltage high contrast ratio (CR) and fast response time.
•     Doping of PDLC composites material with AIO-NPs will result in optimizing the smart glass films for their applications in various fields such as electro-optic display devices, field-effect transistors (FETs), energy storage, photovoltaics sensors, lasers, smart food packaging, and biomedical devices.
•     To establish a prototype laboratory in polymer and glass industries.

Technical Details of Final Deliverable

1. Dopping of the synthesized AlO-NPs in PDLC to check the diffraction efficiency and driving voltage of the PDLC.                    2. Energy efficient PDLC for display projectors and vice versa. 

Final Deliverable of the Project

Hardware System

Core Industry

Manufacturing

Other Industries

Others

Core Technology

Others

Other Technologies

Sustainable Development Goals

Decent Work and Economic Growth

Required Resources

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