Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5402211 | Journal of Luminescence | 2011 | 6 Pages |
Abstract
Nickel-doped tin oxide nanoparticles (sub-5Â nm size) with intense fluorescence emission behavior have been synthesized by sol-gel route. The structural and compositional analysis has been carried out by using XRD, TEM, FESEM and EDAX. The optical absorbance spectra indicate a band gap narrowing effect and it was found to increase with the increase in nickel concentration. The band gap narrowing at low dopant concentration (<5%) can be assigned to SnO2âSnO2âx alloying effect and for higher doping it may be due to the formation of defect sub-bands below the conduction band.
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Authors
Arham S. Ahmed, Shafeeq M. Muhamed, M.L. Singla, Sartaj Tabassum, Alim H. Naqvi, Ameer Azam,