scholarly journals The Effect of Spin Coating Speed and deposition parameters on the Crystalline Size of ZnO Thin Films

2013 ◽  
Vol 6 (4) ◽  
pp. 100-106
Author(s):  
Aqeel Ali Al-Attar ◽  
Safaa Mohammad Hasony ◽  
Ali Hussein Ali
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Optical And Electrical Properties ◽  
Zno Thin Film ◽  
Glass Substrates ◽  
Rotation Rates ◽  
Deposition Parameters ◽  
Coating Method

ZnO thin films have been deposited onto the glass-substrates by the sol-gel spin coating method at different chuck rotation rates. This method was used for the preparation of thin films on the important semiconductors ІІ-VІ. The effect of deposition parameters on the structural, optical and electrical properties of the ZnO thin film was investigated. Zinc acetate dehydrate, 2- methoxethanol and monoethanolamine (MEA) were used as a starting material, solvent and stabilizer, respectively. XRD of the dried gel showed that weight loss continued until 300°C, with smallest particle size at 400 rpm spin coating speed.

Photoluminescence and Transparent Conductive Properties of the Al and Sb Codoped ZnO Thin Films Annealed in Different Atmospheres

2012 ◽  
Vol 457-458 ◽  
pp. 42-45
Author(s):  
Wen Wu Zhong ◽  
Fa Min Liu ◽  
Qin Yi Shi ◽  
Wei Ping Chen
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Spin Coating Method ◽  
Glass Substrates ◽  
Coating Method ◽  
Hexagonal Nanorods ◽  
Conductive Properties

Al and Sb codoped ZnO thin films were prepared through a sol-gel spin coating method on glass substrates and annealed in different atmospheres. The XRD results show that the films have hexagonal wurtzite ZnO structure and SEM results reveal that the films annealed in hydrogen consist of hexagonal nanorods with diameters of 84 nm and lengths of 422 nm, however the films annealed in other atmospheres without nanorods. The photoluminescence (PL) spectrum shows that the emission peaks of the films are mostly at 390 and 460 nm, and the film annealed in hydrogen has the strongest intensity of peak at 390 nm and the film annealed in air has the strongest intensity of peak at 460 nm. The electrical properties show that the films annealed in hydrogen have a lowest resistivity of 1.02×10-3 Ω•cm.

Structural, Optical and Electrical Characteristics of Polycrystalline ZnO Thin Film Prepared by Sol-Gel Spin-Coating Method

2013 ◽  
Vol 667 ◽  
pp. 24-29
Author(s):  
Mohamad Hafiz Mamat ◽  
A.A.A. Halim ◽  
Mohd Zainizan Sahdan ◽  
S. Amizam ◽  
Zuraida Khusaimi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Deposition Process ◽  
Zno Thin Films ◽  
Zno Thin Film ◽  
Sem Images ◽  
Glass Substrates ◽  
Annealing Temperatures

The effect of annealing temperatures on the Zinc Oxide (ZnO) thin films properties has been investigated. 1.0 M ZnO solution was prepared by sol-gel method as coating solution for ZnO thin films deposition process. The thin films deposition was conducted by spin-coating technique on the silicon and glass substrates. The scanning electron microscopy (SEM) images reveal the evolution of ZnO surface morphology with annealing temperatures. The crystallinity improvement occurred at higher annealing temperature as shown by x-ray diffraction (XRD) result. The optical properties found to be varied at different annealing temperatures. The current-voltage (I-V) measurement results suggested the improvement of ZnO thin film electrical properties with annealing temperatures.

Characterization of Nanostructured ZnO Thin Films Deposited by Sol-Gel Spin Coating

2009 ◽  
Vol 79-82 ◽  
pp. 703-706
Author(s):  
Shan Yu Quan ◽  
Ming Tian ◽  
Lin Mei Yang
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Band Gap Energy ◽  
Zno Thin Films ◽  
Optical Absorbance ◽  
Glass Substrates ◽  
Uv Illumination ◽  
Deposition Parameters ◽  
Double Beam

ZnO thin films have been deposited onto the glass substrates by the sol-gel spin coating method at different chuck rotation rates. The effect of deposition parameters on the structural, optical and electrical properties of the ZnO thin films was investigated. The crystal structure and orientation of the ZnO thin films were investigated by X-ray diffraction (XRD) patterns. The optical absorbance and transmittance measurements were recorded by using a double beam spectrophotometer. The optical absorption studies reveal that the transition is direct band gap energy. The I-V plots of the ZnO thin films were carried out in dark and under UV-illumination. The result shows the obtained ZnO thin films can be used as a photovoltaic material.

Multifractal analysis of Mg‐doped ZnO thin films deposited by sol–gel spin coating method

2021 ◽  
Author(s):  
Ştefan Ţălu ◽  
Samah Boudour ◽  
Idris Bouchama ◽  
Bandar Astinchap ◽  
Hamta Ghanbaripour ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Multifractal Analysis ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno ◽  
Mg Doped

scholarly journals (0 0 2)-oriented growth and morphologies of ZnO thin films prepared by sol-gel method

2016 ◽  
Vol 34 (3) ◽  
pp. 555-563 ◽  
Author(s):  
Dongyun Guo ◽  
Yang Ju ◽  
Chengju Fu ◽  
Zhixiong Huang ◽  
Lianmeng Zhang
Keyword(s):  
Thin Films ◽  
Mechanical Stress ◽  
Spin Coating ◽  
Zinc Acetate ◽  
Sol Gel ◽  
Boiling Temperature ◽  
Zno Thin Films ◽  
Oriented Growth ◽  
Gel Method ◽  
Coating Method

AbstractZinc acetate was used as a starting material to prepare Zn-solutions from solvents and ligands with different boiling temperature. The ZnO thin films were prepared on Si(1 0 0) substrates by spin-coating method. The effect of baking temperature and boiling temperature of the solvents and ligands on their morphologies and orientation was investigated. The solvents and ligands with high boiling temperature were favorable for relaxation of mechanical stress to form the smooth ZnO thin films. As the solvents and ligands with low boiling temperature were used to prepare Zn-solutions, the prepared ZnO thin films showed (0 0 2) preferred orientation. As n-propanol, 2-methoxyethanol, 2-(methylamino)ethanol and monoethanolamine were used to prepare Zn-solutions, highly (0 0 2)-oriented ZnO thin films were formed by adjusting the baking temperature.

STRUCTURAL AND OPTICAL INVESTIGATIONS ON NANOCRYSTALLINE TiO2 THIN FILMS PREPARED BY SOL–GEL SPIN COATING TECHNIQUE

2010 ◽  
Vol 09 (04) ◽  
pp. 355-358 ◽  
Author(s):  
T. S. SENTHIL ◽  
M. THAMBIDURAI ◽  
N. MUTHUKUMARASAMY ◽  
R. BALASUNDARAPRABHU
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Anatase Phase ◽  
Sol Gel ◽  
Diffraction Method ◽  
Tio2 Thin Films ◽  
Nanocrystalline Tio2 ◽  
Glass Substrates ◽  
Coating Method ◽  
Different Temperatures

TiO2 thin films have been deposited onto well cleaned glass substrates by sol–gel spin coating method. The prepared TiO2 films have been annealed at different temperatures (350°C, 450°C and 550°C). The structural properties of the films have been studied using X-ray diffraction method and High Resolution Transmission Electron Microscope (HRTEM). The as-deposited films have been found to be amorphous in nature. The crystalline quality has been observed to improve with annealing temperature. The annealed TiO2 films have been found to exhibit anatase phase. The optical properties have been studied using transmittance spectrum.

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