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Title: The effect of the solution flow rate on the properties of zinc oxide (ZnO) thin films deposited by ultrasonic spray

In this work, we used a system based on ultrasonic spray pyrolysis technique. By witch, we have deposited thin films of zinc oxide (ZnO) with the variation of solution flow rate from 50 ml / h to 150 ml / h, and set other parameters such as the concentration of the solution, the deposition time, substrate temperature and the nozzel -substrate distance. In order to study the influence of the solution flow rate on the properties of the films produced, we have several characterization techniques such as X-ray diffraction to determine the films structure, the scanning electron microscopy SEM for the morphology of the surfaces, EDS spectroscopy for the chemical composition, UV-Visible-Nir spectroscopy for determination the optical proprieties of thin films.The experimental results show that: the films have hexagonal structure at the type (wurtzite), the average size of grains varies from 20.11 to 32.45 nm, the transmittance of the films equals 80% in visible rang and the band gap is varied between 3.274 and 3.282 eV, when the solution flow rate increases from 50 to 150 ml/h.
Authors:
; ; ; ; ; ;  [1]
  1. Physics of thin films and applications laboratory, University of biskra, BP 145 RP, 07000 Biskra (Algeria)
Publication Date:
OSTI Identifier:
22391290
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1653; Journal Issue: 1; Conference: APMAS 2014: 4. International Congress in Advances in Applied Physics and Materials Science, Fethiye (Turkey), 24-27 Apr 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION SPECTROSCOPY; CHEMICAL COMPOSITION; CONCENTRATION RATIO; DEPOSITION; ELECTRONIC STRUCTURE; ENERGY GAP; ENERGY-LOSS SPECTROSCOPY; EV RANGE; FLOW RATE; HEXAGONAL LATTICES; MATHEMATICAL SOLUTIONS; MORPHOLOGY; PYROLYSIS; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; THIN FILMS; X-RAY DIFFRACTION; ZINC OXIDES