Nonlinear optical and optical power limiting studies of Zn1-xMnxO thin films prepared by spray pyrolysis

H. S. Sindhu, Shivaraj R. Maidur, Parutagouda Shankaragouda Patil, R. J. Choudhary, B. V. Rajendra

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Zn1-xMnxO (x = 0, 0.02, 0.04, 0.06, 0.08 and 0.1) thin films were deposited at 723 K temperature on glass substrate using a solution of molarity of 0.0125 M through spray pyrolysis method. X-ray diffractogram (XRD) analysis confirmed that all the films have (0 0 2) as a preferential orientation with hexagonal wurtzite structure. The increase of dopant marginally changed the crystallite size and lattice parameters. Surface morphology changes fibrous to spherical structure with an increase in doping. X-ray photoelectron spectroscope (XPS) measurements proved the occurrence of manganese is in the Mn2+ transition state along with Oxygen and Zinc content. The films showed ˜90-80% transmittance in the visible region with increasing in Mn concentration. The energy band-gap reduced with increase in dopant, due to sp-d exchange interactions. The nonlinear optical (NLO) properties were studied using z-scan technique under continuous wave (CW) diode pumped solid-state (DPSS) laser operating at 532 nm wavelength. Reverse saturable absorption (RSA) behaviors observed in both undoped and Mn doped films which is attributed to two-photon absorption (TPA) process. The optical limiting properties were also studied, which suggests that the prepared thin films could be used as optical limiters in the visible region.

Original languageEnglish
Pages (from-to)671-681
Number of pages11
JournalOptik
Volume182
DOIs
Publication statusPublished - 01-04-2019

Fingerprint

Spray pyrolysis
pyrolysis
sprayers
Doping (additives)
Thin films
thin films
optical properties
Solid state lasers
Limiters
Exchange interactions
X ray analysis
Crystallite size
Manganese
Photoelectrons
solid state lasers
wurtzite
Band structure
Lattice constants
continuous radiation
Surface morphology

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Sindhu, H. S. ; Maidur, Shivaraj R. ; Patil, Parutagouda Shankaragouda ; Choudhary, R. J. ; Rajendra, B. V. / Nonlinear optical and optical power limiting studies of Zn1-xMnxO thin films prepared by spray pyrolysis. In: Optik. 2019 ; Vol. 182. pp. 671-681.
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Nonlinear optical and optical power limiting studies of Zn1-xMnxO thin films prepared by spray pyrolysis. / Sindhu, H. S.; Maidur, Shivaraj R.; Patil, Parutagouda Shankaragouda; Choudhary, R. J.; Rajendra, B. V.

In: Optik, Vol. 182, 01.04.2019, p. 671-681.

Research output: Contribution to journalArticle

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AU - Sindhu, H. S.

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