1. bookVolume 63 (2021): Issue 1 (December 2021)
Journal Details
License
Format
Journal
eISSN
2784-1057
First Published
15 Dec 2012
Publication timeframe
1 time per year
Languages
English
access type Open Access

Structural, Chemical and Optical Properties of Pure and Al-Doped Zno Thin Films Derived by Sol–Gel Dip Coating Process

Published Online: 22 Dec 2021
Volume & Issue: Volume 63 (2021) - Issue 1 (December 2021)
Page range: 57 - 71
Received: 03 May 2021
Accepted: 14 Jun 2021
Journal Details
License
Format
Journal
eISSN
2784-1057
First Published
15 Dec 2012
Publication timeframe
1 time per year
Languages
English
Abstract

Pure and Al-doped ZnO thin films were successfully deposited with sol-gel dip coating on both substrates Si (100) and glass. The structural, chemical, morphological and optical properties as a function of the annealing temperature and dopant atomic concentration were investigated by means of X-ray diffraction, Energy dispersive X-ray, Scanning Electron Microscopy, and spectrophotometry. All the pure and doped films show a polycrystalline nature and hexagonal in structure. Accurate doping was proven by EDX. In addition, the SEM analysis revealed that the films possess uniform distribution throughout the surface and the grain dimension decreases with Al doping. From the transmittance measurements, it is see that all films are over 55% in the visible region and the band gap energy increases from 3.28 to 3.45 eV with the increase of Al concentration.

Keywords

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