Influence of structure and surface morphology on optical limiting property of spray pyrolyzed ZCO thin films

H. S. Sindhu; Shivaraj R. Maidur; Parutagouda Shankaragouda Patil; B. V. Rajendra

doi:10.1016/j.cplett.2020.137975

Influence of structure and surface morphology on optical limiting property of spray pyrolyzed ZCO thin films

H. S. Sindhu, Shivaraj R. Maidur, Parutagouda Shankaragouda Patil, B. V. Rajendra^*

^*Corresponding author for this work

Department of Physics, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The spray pyrolyzed Zn_1−xCo_xO (x = 0.01–0.10 at%) (ZCO) films showed polycrystalline nature with a prominent peak of (0 0 2) plane. Fibrous structure changes to the rice-grain type morphology with an increase in doping. XPS analysis confirmed the existence of Co ions in the +2 state. The transmittance and energy bandgap (E_g) of deposits reduces with an increase in doping level due to Co²⁺. The Z-scan technique was used to measure the third-order optical nonlinearities using DPSS CW laser at 532 nm excitation wavelength. The calculated third-order nonlinear susceptibility χ⁽³⁾ is in the order of ~10⁻⁷ esu. The measured optical limiting threshold is in the range of 5.8–9.6 kJ/cm². The deposits can be used in light sensitive devices for optical limiter application.

Original language	English
Article number	137975
Journal	Chemical Physics Letters
Volume	759
DOIs	https://doi.org/10.1016/j.cplett.2020.137975
Publication status	Published - 16-11-2020

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2020.137975

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title = "Influence of structure and surface morphology on optical limiting property of spray pyrolyzed ZCO thin films",

abstract = "The spray pyrolyzed Zn1−xCoxO (x = 0.01–0.10 at%) (ZCO) films showed polycrystalline nature with a prominent peak of (0 0 2) plane. Fibrous structure changes to the rice-grain type morphology with an increase in doping. XPS analysis confirmed the existence of Co ions in the +2 state. The transmittance and energy bandgap (Eg) of deposits reduces with an increase in doping level due to Co2+. The Z-scan technique was used to measure the third-order optical nonlinearities using DPSS CW laser at 532 nm excitation wavelength. The calculated third-order nonlinear susceptibility χ(3) is in the order of ~10−7 esu. The measured optical limiting threshold is in the range of 5.8–9.6 kJ/cm2. The deposits can be used in light sensitive devices for optical limiter application.",

author = "Sindhu, {H. S.} and Maidur, {Shivaraj R.} and {Shankaragouda Patil}, Parutagouda and Rajendra, {B. V.}",

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doi = "10.1016/j.cplett.2020.137975",

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T1 - Influence of structure and surface morphology on optical limiting property of spray pyrolyzed ZCO thin films

AU - Sindhu, H. S.

AU - Maidur, Shivaraj R.

AU - Shankaragouda Patil, Parutagouda

AU - Rajendra, B. V.

PY - 2020/11/16

Y1 - 2020/11/16

N2 - The spray pyrolyzed Zn1−xCoxO (x = 0.01–0.10 at%) (ZCO) films showed polycrystalline nature with a prominent peak of (0 0 2) plane. Fibrous structure changes to the rice-grain type morphology with an increase in doping. XPS analysis confirmed the existence of Co ions in the +2 state. The transmittance and energy bandgap (Eg) of deposits reduces with an increase in doping level due to Co2+. The Z-scan technique was used to measure the third-order optical nonlinearities using DPSS CW laser at 532 nm excitation wavelength. The calculated third-order nonlinear susceptibility χ(3) is in the order of ~10−7 esu. The measured optical limiting threshold is in the range of 5.8–9.6 kJ/cm2. The deposits can be used in light sensitive devices for optical limiter application.

AB - The spray pyrolyzed Zn1−xCoxO (x = 0.01–0.10 at%) (ZCO) films showed polycrystalline nature with a prominent peak of (0 0 2) plane. Fibrous structure changes to the rice-grain type morphology with an increase in doping. XPS analysis confirmed the existence of Co ions in the +2 state. The transmittance and energy bandgap (Eg) of deposits reduces with an increase in doping level due to Co2+. The Z-scan technique was used to measure the third-order optical nonlinearities using DPSS CW laser at 532 nm excitation wavelength. The calculated third-order nonlinear susceptibility χ(3) is in the order of ~10−7 esu. The measured optical limiting threshold is in the range of 5.8–9.6 kJ/cm2. The deposits can be used in light sensitive devices for optical limiter application.

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Influence of structure and surface morphology on optical limiting property of spray pyrolyzed ZCO thin films

Abstract

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