scholarly journals Effect of iron doping on structural and optical properties of TiO2 thin film by sol–gel routed spin coating technique

2017 ◽  
Vol 07 (04) ◽  
pp. 1750024 ◽  
Author(s):  
Stephen Lourduraj ◽  
Rayar Victor Williams
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Visible Region ◽  
Spin Coating Technique ◽  
Optical Measurements ◽  
Structural And Optical Properties ◽  
Coating Technique

Thin films of iron (Fe)-doped titanium dioxide (Fe:TiO[Formula: see text] were prepared by sol–gel spin coating technique and further calcined at 450[Formula: see text]C. The structural and optical properties of Fe-doped TiO2 thin films were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet–visible spectroscopy (UV–vis) and atomic force microscopic (AFM) techniques. The XRD results confirm the nanostructured TiO2 thin films having crystalline nature with anatase phase. The characterization results show that the calcined thin films having high crystallinity and the effect of iron substitution lead to decreased crystallinity. The SEM investigations of Fe-doped TiO2 films also gave evidence that the films were continuous spherical shaped particles with a nanometric range of grain size and film was porous in nature. AFM analysis establishes that the uniformity of the TiO2 thin film with average roughness values. The optical measurements show that the films having high transparency in the visible region and the optical band gap energy of Fe-doped TiO2 film with iron (Fe) decrease with increase in iron content. These important requirements for the Fe:TiO2 films are to be used as window layers in solar cells.

scholarly journals The Effect of Indium Doped SnO2 Thin Films on Optical Properties Prepared by Sol-Gel Spin Coating Technique

2019 ◽  
Vol 1397 ◽  
pp. 012005
Author(s):  
A. Doyan ◽  
Susilawati ◽  
S. Hakim ◽  
L. Muliyadi ◽  
M. Taufik ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Spin Coating Technique ◽  
Coating Technique ◽  
Sno2 Thin Films

scholarly journals Effect of annealing atmosphere on structural and optical properties of CZTS thin films prepared by spin-coating

2018 ◽  
Vol 53 (1) ◽  
pp. 13-20 ◽  
Author(s):  
S Akhanda ◽  
R Matin ◽  
MS Bashar ◽  
M Sultana ◽  
A Kowsar ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Visible Region ◽  
Annealing Atmosphere ◽  
Tin Sulfide ◽  
Structural And Optical Properties ◽  
Copper Zinc ◽  
Czts Thin Films

Copper zinc tin sulfide (CZTS) thin films were deposited by spin coating procedure of a sol-gel prepared from the solution of copper (II)chloride, zinc acetate, tin (II) chloride and thiourea in 2-methoxyehtanol followed by annealing under two different atmospheres viz. N2 gas and Sulphur (S) powder at 530 °C for 5 minutes. The effect of different annealing atmosphere on the structural and optical properties of the CZTS thin films were investigated. The X-ray diffraction study showed higher intensity peaks for films annealed under N2 gas ambient. SEM study revealed that the surfaces of the films in both cases are non-uniform. Films annealed in N2 gas atmosphere showed better absorption coefficient (exceeding 104 cm-1 in the visible region) than the sulphurized ones. The optical band gap (Eg) of the films were found to be in the range of 1.46 - 1.53 eV.Bangladesh J. Sci. Ind. Res.53(1), 13-20, 2018

Structural, Optical and Electrical Characterization of Mo Doped In2O3 Thin Films Prepared via Sol-Gel Spin Coating Technique

2012 ◽  
Vol 576 ◽  
pp. 607-610 ◽  
Author(s):  
Saeed Mohammadi ◽  
Hossein Abdizadeh ◽  
Mohammad Reza Golobostanfard
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Visible Region ◽  
Electrical Characterization ◽  
Optical Transmittance ◽  
Spin Coating Technique ◽  
Coating Technique ◽  
Glass Substrates ◽  
Average Optical Transmittance

The optically transparent conducting molybdenum doped indium oxide (IMO) thin films were deposited on glass substrates by sol-gel spin coating technique. The effect of various molybdenum contents in the range of 0.25–1 at.% on the structural, morphological, optical and electrical properties was studied. XRD results confirmed the formation of cubic bixbyite structure of In2O3 with preferred orientation along (222) plane. Microstructural studies show nearly spherical morphology for thin films with size in the range of 20-40 nm. The films doped with 0.25 at.% Mo found to exhibit a minimum electrical resistivity of 188×10-3 Ω.cm and an average optical transmittance of more than 80% in the visible region with a band gap of 3.85 eV.

Influences of Preheating Temperature on the Structural and Optical Properties of ZnO Thin Films by So-Gel Spin Coating Technique

2014 ◽  
Vol 925 ◽  
pp. 401-405 ◽  
Author(s):  
Sharul Ashikin Kamaruddin ◽  
Mohd Zainizan Sahdan ◽  
Kah Yoong Chan ◽  
Nayan Nafarizal ◽  
Hashim Saim
Keyword(s):  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Spin Coating Technique ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Coating Technique ◽  
Preheating Temperature

The Zinc Oxide (ZnO) films were fabricated on glass coated with indium tin oxide (ITO) substrate by sol-gel spin coating technique. With regard to the preheating temperatures, the effects of growth mechanism ZnO films on the optical and structural properties were investigated. In this study, the preheating temperatures were varied from 250°C, 280°C, and 300°C. The X-ray diffraction (XRD) and ultraviolet-visible (UV-Vis) spectroscopy were used to examine the structural and optical properties of the ZnO films. The XRD results revealed that, the ZnO films are highly crystalline for all samples which are dominated by (002) peak orientation. Meanwhile, observation from optical results indicated that, the variation of transmittance spectra were turn out and it is proportional to the preheating temperatures used. Overall, we realized that the properties of the ZnO films in the sol-gel spin coating technique strongly depend on the preheating temperature and need to be considered as important factor to obtain the high-quality of the ZnO films. Keywords: Sol-gel, Zinc oxide film, X-ray diffraction

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