Structural and optical properties of ZnO thin film prepared by sol-gel spin coating

2020 ◽  
Vol 38 (1) ◽  
pp. 17-22
Author(s):  
G Balakrishnan ◽  
Vivek Sinha ◽  
Yogesh Palai Peethala ◽  
Manoj Kumar ◽  
R.J. Golden Renjith Nimal ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Zinc Acetate Dihydrate ◽  
Sol Gel ◽  
Hexagonal Structure ◽  
Zno Thin Films ◽  
Zno Films ◽  
Structural And Optical Properties ◽  
Vis Spectroscopy

AbstractZinc oxide (ZnO) thin films were deposited on Si (1 0 0) and glass substrates by sol-gel spin coating technique. Zinc acetate dihydrate, monoethanolamine and isopropanol were used as the sources for precursor solution and the resulting gel was used for the preparation of ZnO thin films. The films were annealed at different temperatures (100 °C to 500 °C) and the effect of annealing on the structural and optical properties was investigated. X-ray diffraction (XRD) and UV-Vis spectroscopy were used for the analysis of the films. The XRD results indicated the polycrystalline hexagonal structure of the ZnO films with (0 0 2) orientation. The optical properties of the films were studied using UV-Vis spectrophotometer in the wavelength range of 190 – 1100 nm. The optical characterization of the ZnO thin films showed the high transmittance of ~90 % for the films annealed at 400 °C. The films showed the absorbance ~360 – 390 nm and bandgap values of 3.40 – 3.10 eV, depending on the annealing temperature of the films.

Structural and optical properties of ZnO thin films by the spin coating Sol-Gel method

2011 ◽  
Vol 60 (1) ◽  
pp. 66-70 ◽  
Author(s):  
E. F. Keskenler ◽  
S. Doğan ◽  
B. Diyarbakır ◽  
S. Duman ◽  
B. Gürbulak
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Structural And Optical Properties ◽  
Gel Method ◽  
Sol Gel Method

EFFECTS OF Ge DOPING THROUGH ION IMPLANTATION ON THE STRUCTURAL AND OPTICAL PROPERTIES OF ZnO THIN FILMS PREPARED BY SOL-GEL TECHNIQUE

2007 ◽  
Vol 21 (31) ◽  
pp. 5257-5263 ◽  
Author(s):  
S. W. XUE ◽  
X. T. ZU ◽  
X. XIANG ◽  
M. Y. CHEN ◽  
W. G. ZHENG
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Ion Implantation ◽  
Deep Level ◽  
Sol Gel ◽  
Visible Region ◽  
Zno Thin Films ◽  
Zno Films ◽  
Near Band Edge ◽  
Structural And Optical Properties

ZnO thin films were first prepared by the sol–gel process, and then Ge ions were implanted into the ZnO films. The effects of ion implantation on the structural and optical properties of the ZnO films were investigated by X-ray diffraction, photoluminescence (PL), and optical transmittance measurements. Measurement results showed that the intensity of the (002) diffraction peak was decreased and the full width at half maximum was narrowed. PL emission was greatly extinguished after Ge ion implantation. Both the near band edge (NBE) excitonic UV emission at 391 nm and the defect related deep level emission centered at 470 nm in the visible region were decreased after Ge ion implantation. NBE peak and the absorption edge were observed to have a blueshift toward higher energy.

STRUCTURAL AND OPTICAL PROPERTIES OF ZnO THIN FILMS PREPARED BY SPIN COATING METHOD — INFLUENCE OF CONCENTRATION AND SPIN RATE

2012 ◽  
Vol 19 (02) ◽  
pp. 1250018
Author(s):  
V. LAKSHMIPRIYA ◽  
B. NATARAJAN ◽  
N. JEYAKUMARAN ◽  
N. PRITHIVIKUMARAN
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Band Gap Energy ◽  
Zno Thin Films ◽  
Structural And Optical Properties ◽  
Spin Coating Method ◽  
Spin Speed ◽  
Coating Method

ZnO thin films were prepared onto the glass substrates by the sol–gel spin coating method for various Zn concentrations and at different spin rates. The influence of concentration of zinc and spin rate on the structural and optical properties of the ZnO thin films were investigated. It was observed that the zinc concentration and spin rate influence the grain size and morphology of the ZnO thin films. The optical band gap energy was found to increase with decrease of Zn concentration and increase in spin speed. The photoluminescence peaks show green radiation at ~485 nm. It was also observed that the enrichment of zinc and variation in spin speed influence the intensity of luminescence peaks.

Boron Doping Effects on the Structural and Optical Properties of Sol-Gel Transparent ZnO Films

2013 ◽  
Vol 547 ◽  
pp. 145-151 ◽  
Author(s):  
Sirirat T. Rattanachan ◽  
P. Krongarrom ◽  
Thipwan Fangsuwannarak
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Zno Films ◽  
Structural And Optical Properties ◽  
Preferential Growth ◽  
Glass Substrates ◽  
Doping Effects ◽  
Coating Method

In this study, undoped and B-doped ZnO thin films were successfully deposited on the glass substrates by a sol-gel spin coating method. The influence of doping concentrations and the annealing temperature effects on the structural and optical properties of ZnO thin films were investigated. All of films exhibited polycrystalline structure, with a preferential growth along the c-axis plane and the optical transparency with visible transmittance was higher than 90%. The crystallite size was calculated using a well-known Scherrer’s formula and found to be in the range of 11-18 nm. The optical band gap of these films were determined and compared with those obtained for undoped ZnO thin film.

scholarly journals Co doping induced structural and optical properties of sol–gel prepared ZnO thin films

2014 ◽  
Vol 318 ◽  
pp. 309-313 ◽  
Author(s):  
Ebru Gungor ◽  
Tayyar Gungor ◽  
Deniz Caliskan ◽  
Abdullah Ceylan ◽  
Ekmel Ozbay
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Structural And Optical Properties ◽  
Co Doping
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