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Temperature Dependence on Opto-structural Parameters of Sol-gel Derived Tin Doped Zirconia Nanoparticles

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Title Temperature Dependence on Opto-structural Parameters of Sol-gel Derived Tin Doped Zirconia Nanoparticles
 
Creator Rani, Saruchi
Verma, Surbhi
Kumar, Sushil
 
Subject Nanoparicles
Sol-gel
Annealing
Structural parameters
Optical parameters
 
Description 102-107
Recently, nanocrystalline zirconia was widely employed in photocatalytic applications.Tin doped zirconia nanoparticles
were prepared by sol-gel process followed by spin coating technique. The as-produced powders and thin films were heat treated
in air at 500, 650 and 800 °C for 2h. Structural parameters of annealed samples were characterized by X-ray diffraction and
Fourier transformed infrared studies. XRD spectra revealed the mixed phases such as t-ZrO2, m-ZrO2 and o-ZrSnO4. Structural
parameters viz. crystallite size, lattice constants, dislocation density, microstrain, orientation parameter and activation energy
were evaluated. XRD data depicted that crystallite size increased, while lattice parameters slightly decreased with increase in
annealing temperature. Expected functional groups were established by FTIR spectra. Optical parameters of nanopowders/thin
films such as PL emission wavelength and optical band gap were determined by photoluminescence and UV-visible absorption.
The energy band gaps of thin films were increased with increase in temperature. The emission peak exhibited a blue shift with
increase in temperature. In addition, thermogravimetric-differential thermal analysis of as prepared sample was investigated.
 
Date 2023-02-20T11:14:16Z
2023-02-20T11:14:16Z
2023-02
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/61391
https://doi.org/10.56042/ijpap.v61i2.69833
 
Language en
 
Publisher CSIR-NIScPR
 
Source IJPAP Vol.61(02) [Feb 2023]