Effect of the Number Shots of Laser on Structural Transformations and Optical Properties of ZnS Nanoparticles Thin Films
Mohammed, A., Mohammed, N., Khudhair, I. (2018). Effect of the Number Shots of Laser on Structural Transformations and Optical Properties of ZnS Nanoparticles Thin Films. EKB Journal Management System, 51(4), 108-117. doi: 10.21608/ajnsa.2018.12602
A.Z. Mohammed; N.J. Mohammed; I.K. Khudhair. "Effect of the Number Shots of Laser on Structural Transformations and Optical Properties of ZnS Nanoparticles Thin Films". EKB Journal Management System, 51, 4, 2018, 108-117. doi: 10.21608/ajnsa.2018.12602
Mohammed, A., Mohammed, N., Khudhair, I. (2018). 'Effect of the Number Shots of Laser on Structural Transformations and Optical Properties of ZnS Nanoparticles Thin Films', EKB Journal Management System, 51(4), pp. 108-117. doi: 10.21608/ajnsa.2018.12602
Mohammed, A., Mohammed, N., Khudhair, I. Effect of the Number Shots of Laser on Structural Transformations and Optical Properties of ZnS Nanoparticles Thin Films. EKB Journal Management System, 2018; 51(4): 108-117. doi: 10.21608/ajnsa.2018.12602

Effect of the Number Shots of Laser on Structural Transformations and Optical Properties of ZnS Nanoparticles Thin Films

Arab Journal of Nuclear Sciences and Applications
Article 12, Volume 51, Issue 4, October 2018, Page 108-117  XML PDF (789.92 K)
Document Type: Original Article
DOI: 10.21608/ajnsa.2018.12602
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Authors
A.Z. Mohammed1; N.J. Mohammed* 2; I.K. Khudhair
1Physics Department, Faculty of Science, Zagazig University, Zagazig, Egypt
2Physics Department, Faculty of Science, Al-Mustansiriyah University, Iraq
Abstract
Effects of the number of shots of laser and annealing temperature on the structural, morphological, and optical properties of zinc sulfide nanoparticles (ZnS NPs) thin films, prepared by pulsed laser deposition technique (PLD), were investigated. XRD results show that ZnS NPs exhibit a hexagonal phase at 623k. Transformation in the shape of nanoparticles to nanoflowers and nanorods appeared with increasing number of shots of laser at the same annealing temperature (623K) was observed from scanning electron microscopy (SEM) images. The optical properties were studied from all transmittance data. The experimental results show that the as-deposited ZnS NPs film exhibit a cubic structure and the crystallinity increased in the annealed films. It is also found that the grain size of the as grown samples at 300K, rises linearly from 9 to 11 nm with increasing the number of shots from 1000 to 3000 and rapidly from 10 to 18 nm after annealing at 623K. Additionally, the increase of the number of shots from 1000 to 3000 leads to a decrease in the energy gap values and increases their values after heat treatment keeping their behavior decreasing as the number of shots of laser increases. Also, photoluminescence (PL) measurements explained quenching its value after annealing temperature.
Keywords
ZnS; Pulsed laser deposition; Nanoparticles; Nano leaves; Nanoflowers; nanorods; Photoluminescence (PL); Annealing Temperature
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