Growth, structural and optical properties of CdxZn1-xS thin films deposited using spray pyrolysis technique

Y. Raviprakash, Kasturi V. Bangera, G. K. Shivakumar

Research output: Contribution to journalArticle

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Abstract

CdxZn(1-x)S (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) thin films were deposited by the chemical spray pyrolysis technique using a less used combination of chemicals. Depositions were done at 573 K on cleaned glass substrates. The composition, surface morphology and structural properties of deposited films were studied using EDAX, SEM and X-ray diffraction technique. XRD studies reveal that all the films are crystalline with hexagonal (wurtzite) structure and inclusion of Cd into the structure of ZnS improved the crystallinity of the films. The value of lattice constant 'a' and 'c' have been observed to vary with composition from 0.382 to 0.415 nm and 0.625 to 0.675 nm, respectively. The band gap of the thin films varied from 3.32 to 2.41 eV as composition varied from x = 0.0-1.0. It was observed that presence of small amount of cadmium results in marked changes in the optical band gap of ZnS.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalCurrent Applied Physics
Volume10
Issue number1
DOIs
Publication statusPublished - 01-01-2010

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Spray pyrolysis
pyrolysis
sprayers
Structural properties
Optical properties
optical properties
Thin films
thin films
Chemical analysis
Optical band gaps
Cadmium
wurtzite
cadmium
Lattice constants
Surface morphology
Energy dispersive spectroscopy
crystallinity
Energy gap
inclusions
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "CdxZn(1-x)S (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) thin films were deposited by the chemical spray pyrolysis technique using a less used combination of chemicals. Depositions were done at 573 K on cleaned glass substrates. The composition, surface morphology and structural properties of deposited films were studied using EDAX, SEM and X-ray diffraction technique. XRD studies reveal that all the films are crystalline with hexagonal (wurtzite) structure and inclusion of Cd into the structure of ZnS improved the crystallinity of the films. The value of lattice constant 'a' and 'c' have been observed to vary with composition from 0.382 to 0.415 nm and 0.625 to 0.675 nm, respectively. The band gap of the thin films varied from 3.32 to 2.41 eV as composition varied from x = 0.0-1.0. It was observed that presence of small amount of cadmium results in marked changes in the optical band gap of ZnS.",
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Growth, structural and optical properties of CdxZn1-xS thin films deposited using spray pyrolysis technique. / Raviprakash, Y.; Bangera, Kasturi V.; Shivakumar, G. K.

In: Current Applied Physics, Vol. 10, No. 1, 01.01.2010, p. 193-198.

Research output: Contribution to journalArticle

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