Journal of Nanomedicine & Nanotechnology

Influence of Mg2+, Ca2+ and Sr2+ ions doping on the band gap energy of ZnO nanoparticle

9^th Nano Congress for Next Generation

August 01-02, 2016 Manchester, UK

Khalid Siraj

Jimma University, Ethiopia

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

Nanocrystalline materials have attracted a wide attention for application in nanodevice fabrication due to their unique properties and immense potential. Among various nanocrystalline materials ZnO nanoparticles have shown great potential for numerous applications. Owing to the unique properties of the ZnO nanoparticle, this study was conducted to investigate the lowering of the band gap energy and optical property doped with Mg2+, Ca2+ and Sr2+ ions. ZnO nanoparticle was synthesized by adding zinc acetate to aqueous NaOH solution and subjected to ultrasonic irradiation for 2 hr, after that a white precipitate was obtained which was filtered and washed with ethanol and de-ionized water, and dried in an oven at 600C for 3 hr. The dried white powder was then calcined at 4000C for 2 hr and subjected to UV-Vis spectrophotometer to characterize the synthesized ZnO nanoparticle. The band gap energy of ZnO undoped and doped with Mg2+, Ca2+ and Sr2+ ions was determined. From all dopants 0.006 M Mg2+ doped ZnO nanoparticles was found to be narrowing band gap more. A significant change in optical property was also observed in synthesized ZnO nanoparticle.

Biography :

Email: chemdocprof@gmail.com