Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10656571 | Journal of Alloys and Compounds | 2012 | 7 Pages |
Abstract
⺠Nanocomposite ZrO2-SnO2 thin films with varying molar ratio ZrO2/SnO2 are synthesized from zirconium oxychloride octahydrate and tin(II) chloride dihydrate by sol-gel dip coating method. ⺠XRD spectra show the growth of orthorhombic ZrSnO4 phase in ZS55 sample with molar ratio 0.5/0.5 of ZrO2/SnO2 at 2θ = 51.7° and 62.7° along with tetragonal ZrO2 and tetragonal SnO2 phase at the annealing temperature 500 °C. ⺠XPS spectra reveal the presence of oxygen vacancies in the nanocomposite ZrO2-SnO2 thin film. ⺠Band gap and superior refractive index tailoring is observed in the nanocomposite ZrO2-SnO2 thin films, which have opened up a new dimension in optical applications. ⺠The PL emission peak at 424 nm indicates the presence of oxygen vacancies in ZrSnO4 which interact with interfacial atoms of zirconium and tin giving rise to photoluminescence.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
K. Joy, S. Sujatha Lakshmy, Prabitha B. Nair, Georgi P. Daniel,