Structural, Spectroscopic, Electrical and Humidity Sensing Investigations on Nanostructured Zinc Oxide (ZnO) Synthesized via Sol–Gel Method

2018 ◽  
Vol 10 (7) ◽  
pp. 665-669
Author(s):  
Anuradha Yadav
Keyword(s):  
Zinc Oxide ◽  
Sol Gel ◽  
Humidity Sensing ◽  
Gel Method ◽  
Sol Gel Method ◽  
Nanostructured Zinc Oxide

scholarly journals Optical Properties of Sn Doped ZnO Thin Film Prepared Using Sol-Gel Method for Optical Limiting Application

2021 ◽  
Vol 24 (3) ◽  
pp. 38-42
Author(s):  
Marwa Mudfer Alqaisi ◽  
◽  
Alla J. Ghazai ◽  
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Optical Properties ◽  
Sol Gel ◽  
Visible Region ◽  
Optical Limiting ◽  
Pure Zinc ◽  
Gel Method ◽  
Sol Gel Method ◽  
Doped Zno

In this work, pure Zinc oxide and tin doped Zinc oxide thin films nanoparticles with various volume concentrations of 2, 4, 6, and 8V/V% were prepared by using the sol-gel method. The optical properties were investigated by using UV-Visible spectroscope, and the value exhibits the direct allowed transition. The average of transmittance was around ~(17-23) %in visible region. The optical energy band gap was calculated with wavelength (300-900) nm for pure ZnO and Sn doped ZnO thin films which decreases with increasing concentration from 3.4 eV to 3.1 eV respectively and red shift. The real dielectric(εr) and the imaginary dielectric εiare the same behavior of the refractive index(n) the extinction coefficient (k) respectively. The optical limiting properties were studied by using an SDL laser with a wavelength of 235 nm. ZnO and doping thin films an found efficient as optic limiting and depend on the concentration of the all samples.

scholarly journals Growth and Characterization of Indium-Doped Zinc Oxide Thin Films Prepared by Sol-Gel Method

2012 ◽  
Vol 121 (1) ◽  
pp. 217-220 ◽  
Author(s):  
M.S. Kim ◽  
K.G. Yim ◽  
S. Kim ◽  
G. Nam ◽  
D.Y. Lee ◽  
...  
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Sol Gel ◽  
Oxide Thin Films ◽  
Gel Method ◽  
Sol Gel Method

Humidity Sensing Elements Based on Si-Bi-O Surface Layers Prepared via a Sol-Gel Method

2018 ◽  
Vol 18 (17) ◽  
pp. 6946-6953 ◽  
Author(s):  
Zvezditza Nenova ◽  
Toshko Nenov ◽  
Stephan Kozhukharov ◽  
Nedyu Nedev
Keyword(s):  
Sol Gel ◽  
Surface Layers ◽  
Humidity Sensing ◽  
Gel Method ◽  
Sol Gel Method

Structural and Physical Characterisation of Zinc Oxide Thin Films Prepared from Zinc Acetate via the Sol-gel Method

2007 ◽  
Vol 1035 ◽  
Author(s):  
Shane O'Brien ◽  
Lee H.K. Koh ◽  
Mehmet Copuroglu ◽  
Gabriel M. Crean
Keyword(s):  
Zinc Oxide ◽  
Film Thickness ◽  
Zinc Acetate ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Major Influence ◽  
Acetate Concentration ◽  
Gel Method ◽  
Sol Gel Method ◽  
Zinc Oxide Films

AbstractThe influence of zinc acetate concentration in the range 0.3 – 1.3M and annealing temperature in the range 450 – 550°C on the microstructure of zinc oxide films prepared by the sol-gel method was investigated. Zinc acetate concentration of the sol-gel deposited was found to be the major influence on the microstructure and in particular c-axis or (002) preferred orientation of the resulting film, due to its impact on film thickness, for a single sol-gel deposition employing fixed deposition conditions. Preferentially (002) orientated films were obtained from 0.3M zinc acetate sol-gels. However, an increase in zinc acetate concentration resulted in an increase in film thickness and a loss of preferentially (002) orientation. It was found that thick preferentially (002) oriented films could be produced by using multiple depositions of a 0.7M zinc acetate sol-gel using higher drying temperatures.

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