Abstract :
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In 21st century it is observed that field of nano phosphors materials are hugely significant and dynamic. There has been a great agreement of interest for nanoscale electronic and photonic applications i.e. flat panel displays including plasma display panels, field emission displays and electroluminescence displays. In all displays panels, phosphors are the key materials and became a very interesting research topic. The oxide- based phosphors with excellent thermal and chemical stability have received increasing concentration. Phosphors materials are generally synthesized by chemical methods. Chemical precipitation, sol gel, reaction in micro emulsions and chemical vapour synthesis are commonly used techniques for fabrications of nanophosphors. These methods are simple, economical and environmentally mild. Nano - crystalline form exhibit different electrical, optical and structural properties to those in bulk form. There are so many reasons for this remarkable difference in their nano versus bulk form i.e. quantum confinement effect, increased relative surface area etc.
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