Effect of Na doping on photoluminescence and laser stimulated nonlinear optical features of ZnO nanostructures

U. G. Deekshitha, Krithika Upadhya, Albin Antony, Aninamol Ani, M. Nowak, I. V. Kityk, J. Jedryka, P. Poornesh, K. B. Manjunatha, Suresh D. kulkarni

Research output: Contribution to journalArticle

Abstract

In this work, nonlinear optical properties of Na: ZnO thin films (Na: ZnO) have been experimentally elaborated. The principal possibility to operate the nonlinear optical features using external laser beams is shown. The Na: ZnO films were synthesized by spray pyrolysis technique at a deposition temperature equal to about 400 °C. XRD graph reveals that the grown films were polycrystalline in nature with a dominant peak corresponding to (0 0 2) plane. Despite the difference in the ionic radii of the Na (0.95Ao) and Zn (0.74A°), an angle shift in the XRD peak was not observed, whereas there was a significant change in peak intensity. The photoluminescence (PL) spectra resulted in three emission centres spectrally situated in violet, blue and green colour region due to the presence of native defect states in the forbidden energy gap. Second and third harmonic generation (SHG, THG) experiments stimulated by external coherent light beams show the existence of THG maxima for 15% Na doped Zn:O which was quite different with respect to SHG maximum for pure ZnO. The main innovation of this work is the possibility to change nonlinear optical susceptibility varying Na doping concentration and by coherent laser treatment, contrary to the previous works where these parameters have not been explored.

Original languageEnglish
Pages (from-to)139-148
Number of pages10
JournalMaterials Science in Semiconductor Processing
Volume101
DOIs
Publication statusPublished - 01-10-2019

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Harmonic generation
Nanostructures
Photoluminescence
Doping (additives)
photoluminescence
Spray pyrolysis
Lasers
lasers
Laser beams
Energy gap
Optical properties
Innovation
coherent light
Color
light beams
Thin films
Defects
pyrolysis
sprayers
harmonic generations

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Deekshitha, U. G. ; Upadhya, Krithika ; Antony, Albin ; Ani, Aninamol ; Nowak, M. ; Kityk, I. V. ; Jedryka, J. ; Poornesh, P. ; Manjunatha, K. B. ; kulkarni, Suresh D. / Effect of Na doping on photoluminescence and laser stimulated nonlinear optical features of ZnO nanostructures. In: Materials Science in Semiconductor Processing. 2019 ; Vol. 101. pp. 139-148.
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Effect of Na doping on photoluminescence and laser stimulated nonlinear optical features of ZnO nanostructures. / Deekshitha, U. G.; Upadhya, Krithika; Antony, Albin; Ani, Aninamol; Nowak, M.; Kityk, I. V.; Jedryka, J.; Poornesh, P.; Manjunatha, K. B.; kulkarni, Suresh D.

In: Materials Science in Semiconductor Processing, Vol. 101, 01.10.2019, p. 139-148.

Research output: Contribution to journalArticle

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AU - Upadhya, Krithika

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AU - Nowak, M.

AU - Kityk, I. V.

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AU - Manjunatha, K. B.

AU - kulkarni, Suresh D.

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