Effect of sol temperature on the structure, morphology, optical and photoluminescence properties of nanocrystalline zirconia thin films

Berlin, I. John; Lakshmi, Jaya; Lekshmy, S. Sujatha; Daniel, Georgi P.; Thomas, P.V.; Joy, K.

doi:10.1007/s10971-011-2443-6

Cited by 34 publications

(19 citation statements)

References 49 publications

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“…The PL and especially PA of zirconia films have been seldom reported [5,6], although PL and PA have been observed in a ZrO 2 sol and nanoparticle systems [7][8][9][10]. It has been proposed for these systems that PL centers are defect centers related to oxygen vacancies and interstitial defects.…”

Section: Introductionmentioning

confidence: 99%

Zirconia films formed by plasma electrolytic oxidation: Photoluminescent and photocatalytic properties

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Zirconia films formed by plasma electrolytic oxidation: Photoluminescent and photocatalytic properties

et al. 2015

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“…The stirring was continued for 90 min until a clear transparent sol is obtained. Zirconium oxychloride octahydrate, water, nitric acid and acetyl-acetone were taken in the molar ratio 1:20:0.4:3 [34]. Fig.…”

Section: Methodsmentioning

confidence: 99%

“…In our earlier studies, we have observed that pure zirconia thin films attain a mixed tetragonal and monoclinic (m) crystalline phases at an annealing temperature of 500 • C [34]. The results of the present study shows the presence of stabilized tetragonal ZrO 2 (t-ZrO 2 ) polymorph in ZS91, ZS73, ZS55 and ZS73 samples annealed at 500 • C. These crystallization products probably results from a ZrO 2 -SnO 2 surface interaction, similarly as in the ZrO 2 /SO 4 2− system [36] that prevents the diffusion of oxygen from the atmosphere into the ZrO 2 lattice and triggers the t-ZrO 2 to m-ZrO 2 transition.…”

Section: X-ray Diffraction Studiesmentioning

confidence: 96%

Band gap and superior refractive index tailoring properties in nanocomposite thin film achieved through sol–gel co-deposition method

Joy¹,

Lakshmy²,

Nair³

et al. 2012

Journal of Alloys and Compounds

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“…The optical loss in thin films is dependent on surface roughness [9]. The sol temperature determines the structural and optical properties of thin films [10].…”

Section: Introductionmentioning

confidence: 99%

Investigation of physical properties of perovskite PZT thin films as a function of sol temperature

Sreelalitha

Thyagarajan

2016

J Mater Sci: Mater Electron

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PZT [Pb (Zr 0.52 Ti 0.48 )O 3 ] thin films were prepared on quartz substrate by sol gel spin coating technique. The Zr/Ti ratio was kept at 52/48 which is morphotropic phase boundary (MPB). At MPB both tetragonal and rhombohedral phases coexist and greatly influence the physical properties. In this work the PZT thin films were coated with sol kept at room temperature and at 125°C as 3 (SQ1) and 2 (SQ2) layers. The structural, morphological, compositional and optical properties of coated thin films were studied using X-ray diffraction, scanning electron microscopy (SEM) and UV-Visible spectroscopy. The X-ray diffraction patterns reveal perovskite phase formation for both the films annealed to 660°C. The micro structural parameters such as lattice constant, crystallite size, dislocation density and strain were determined. The grain size increases with increase in sol temperature from 24 to 27 nm. The SEM analysis indicates dense structure of films with good adhesion to the substrate. The cross sectional view of the films provides the thickness of films as 760 and 955 nm. The EDAX data gives the composition of the films. Optical spectra indicate that the films have direct band transitions. The band gap values were dependent on crystallite size and strain. As thickness increases the band gap value decreases from 3.73 to 3.26 eV.

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Effect of sol temperature on the structure, morphology, optical and photoluminescence properties of nanocrystalline zirconia thin films

Cited by 34 publications

References 49 publications

Zirconia films formed by plasma electrolytic oxidation: Photoluminescent and photocatalytic properties

Zirconia films formed by plasma electrolytic oxidation: Photoluminescent and photocatalytic properties

Band gap and superior refractive index tailoring properties in nanocomposite thin film achieved through sol–gel co-deposition method

Investigation of physical properties of perovskite PZT thin films as a function of sol temperature

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