Violet Luminescence from ZnO/Poly (ethylene glycol) ColloidalNanocomposite Prepared by Pulsed Laser Ablation in Liquid Media:Effect of PEG/Water Ratio

摘要

Laser ablation in liquid media has provided an easy, quick and versatile route for the synthesis of wide variety of nanostructures in the form of highly stable colloidal solution, which can be converted into powder as well as film form after simple processing method. Zinc oxide is an n type, wide and direct band gap ( 3.4 eV) semiconductor with high exciton binding energy, which makes it most suitable optoelectronic materials for Light Emitting Diodes (LEDs), Solar Cells, light detectors and other applications. Zinc oxide/polymer nanocomposite materials have profound application in the fabrication of these devices due to their composition dependent tunable optical properties.