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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 661-664 |
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Hasani F, Simdar M, Bassam M A, Mousavi S S, Sajad B. Annealing Effects on Optical Properties Zinc Oxide (ZnO) Thin Films. ICOP & ICPET _ INPC _ ICOFS 2019; 25 :661-664
URL: http://opsi.ir/article-1-1869-en.html
URL: http://opsi.ir/article-1-1869-en.html
Faezeh Hasani * 
1, Mehrnaz Simdar1 , Mohammad amin Bassam2 , Seyedeh soraya Mousavi1 , Batool Sajad1
1, Mehrnaz Simdar1 , Mohammad amin Bassam2 , Seyedeh soraya Mousavi1 , Batool Sajad1
1- Physics Department, Alzahra University
2- Electronics Department, Malek Ashtar University
2- Electronics Department, Malek Ashtar University
Abstract: (1589 Views)
Zinc Oxide, as one of the most important metal oxides, has been widely applied in optical devices due to its unique properties. In fact, the specifications of the ZnO thin film depend thoroughly on the deposition method. Pulsed Laser Deposition (PLD) is one of the most efficient methods for preparing ZnO films. In this paper, the optical behavior of prepared ZnO thin films through PLD was investigated using two kinds of samples, as deposited layer and the annealed sample. For this aim, absorption, transmission and optical band gaps of the samples were measured by the use of UV-VIS spectroscopy. After annealing, the ultra-violet transmission rate was increased by 20% and the energy band gap was increased by 0.3 eV. Moreover, the surface morphology of the samples was studied using the optical and scanning electron microscopy images which ultimately showed an increase in the grain’s size.
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