Modified voltammetric, impedimetric and optical behavior of polymer- assisted sol-gel MgFe 2 O 4 nanostructured thin films

2017 ◽  
Vol 250 ◽  
pp. 143-151 ◽  
Author(s):  
Z. Bazhan ◽  
F.E. Ghodsi ◽  
J. Mazloom
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Nanostructured Thin Films ◽  
Optical Behavior

scholarly journals Opto-Electronic Properties of Epoxy/Silicone Blend Based Thin Films

2021 ◽  
Author(s):  
Younes Ziat ◽  
Hamza Belkhanchi ◽  
Maryama Hammi ◽  
Charaf Laghlimi ◽  
A Moutcine
Keyword(s):  
Thin Films ◽  
Indium Tin Oxide ◽  
Optical Transition ◽  
Sol Gel ◽  
Glass Substrates ◽  
Nanostructured Thin Films ◽  
Ito Glass ◽  
Potential Applications ◽  
Optical Applications ◽  
Nitrogen Doped Carbon

Abstract Recently, the rise of two dimensional amorphous nanostructured thin films have ignited a big interest because of their intriguingly isotropic structural and physical properties leading to potential applications in the nano-optoelectronics. However, according to literature, most of optoelectronic properties are investigated on chalcogenides related heterostructures. This has motivated the present work aiming to provide a new platform for the fabrication, examination of the properties and the applications of 2D nanostructured thin films based on epoxy/silicone blend. Thin films of Epoxy/Silicone loaded with nitrogen doped carbon nanotubes (N-CNTs) were prepared by sol-gel method and deposited on Indium Tin Oxide (ITO) glass substrates at room temperature. Further examination of optical properties aimed the investigation of optical pseudo-gap and Urbach energy and enabled the determination of processed films thickness based on Manifacier and Swanepol method. The results indicated that the unloaded thin films have a direct optical transition with a value of 3.61 eV followed by noticeable shift towards narrowing gaps depending on the loading rate. Urbach's energy is 0.19 eV for the unloaded thin films, and varies from 0.43 to 1.33 eV for the loaded thin films with increasing the rate of N-CNTs. It is inversely variable with the optical pseudo-gap. Finally, Epoxy/Silicone loaded with N-CNTs nanocomposites films can be developed as active layers with specific optical characteristics, giving the possibility to be used in electro-optical applications.

Synthesis, Properties, and Applications of Special Substrates Coated by Titanium Dioxide Nanostructured Thin Films via Sol-Gel Process

2011 ◽  
pp. 246-279
Author(s):  
Hamid Dadvar ◽  
Farhad E. Ghodsi ◽  
Saeed Dadvar
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Sol Gel ◽  
Precursor Solution ◽  
Tio2 Thin Films ◽  
Simple Method ◽  
Nanostructured Thin Films ◽  
Precursor Material ◽  
Synthesis Properties ◽  
Antibacterial Surfaces

In this chapter, the sol-gel made titanium dioxide nanostructured thin films deposited on special substrates such as glasses, mica, steels, textiles, fibers, and other organic/inorganic substrates were reviewed. Through this review, several distinctive properties such as optical, electrical, photocatalytic, morphological, and mechanical properties of TiO2 nanostructured thin films were described. Also, a wide range of practical application of TiO2 nanostructured thin films such as dye-sensitised solar cells, optical coatings, humidity and gas sensors, selfcleaning, dielectric, and antibacterial surfaces were discussed in details. Dip and spin coating techniques were demonstrated as suitable methods for deposition of thin films. It has been shown that properties of such films can be affected by type of coating technique, stabilizer, precursor material, solvents, pH and viscosity of precursor solution, aging, and etc. Finally, Successive Interference Fringes Method (SIFM) was presented as a simple method for the determination of optical constants and thickness of TiO2 thin films from single transmission measurements.

Sol–gel TiO2 and W/TiO2 nanostructured thin films for control of drunken driving

2002 ◽  
Vol 83 (1-3) ◽  
pp. 230-237 ◽  
Author(s):  
C. Garzella ◽  
E. Comini ◽  
E. Bontempi ◽  
L.E. Depero ◽  
C. Frigeri ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Nanostructured Thin Films ◽  
Drunken Driving

Characterization of Mn doped ZnO wrinkle-network nanostructured thin films deposited by sol-gel spin coating technique

2019 ◽  
Author(s):  
Ashutosh Kumar Dikshit ◽  
Abhishek Kumar Singh ◽  
Kamal . ◽  
Yogendra Kumar Prajapati ◽  
Parthasarathi Chakrabarti
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Spin Coating Technique ◽  
Coating Technique ◽  
Nanostructured Thin Films ◽  
Doped Zno ◽  
Mn Doped

SiO2-ZrO2 Sol-Gel Nanostructured Thin Films with Optical Properties

2004 ◽  
Vol 264-268 ◽  
pp. 553-556
Author(s):  
Maria Crışan ◽  
Măriuca Gartner ◽  
L. Predoana ◽  
D. Crışan ◽  
R. Scurtu ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Nanostructured Thin Films

Synthesis, Properties, and Applications of Special Substrates Coated by Titanium Dioxide Nanostructured Thin Films via Sol-Gel Process

2014 ◽  
pp. 218-250
Author(s):  
Hamid Dadvar ◽  
Farhad E. Ghodsi ◽  
Saeed Dadvar
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Sol Gel ◽  
Precursor Solution ◽  
Tio2 Thin Films ◽  
Simple Method ◽  
Nanostructured Thin Films ◽  
Precursor Material ◽  
Synthesis Properties ◽  
Antibacterial Surfaces

In this chapter, the sol-gel made titanium dioxide nanostructured thin films deposited on special substrates such as glasses, mica, steels, textiles, fibers, and other organic/inorganic substrates were reviewed. Through this review, several distinctive properties such as optical, electrical, photocatalytic, morphological, and mechanical properties of TiO2 nanostructured thin films were described. Also, a wide range of practical application of TiO2 nanostructured thin films such as dye-sensitised solar cells, optical coatings, humidity and gas sensors, selfcleaning, dielectric, and antibacterial surfaces were discussed in details. Dip and spin coating techniques were demonstrated as suitable methods for deposition of thin films. It has been shown that properties of such films can be affected by type of coating technique, stabilizer, precursor material, solvents, pH and viscosity of precursor solution, aging, and etc. Finally, Successive Interference Fringes Method (SIFM) was presented as a simple method for the determination of optical constants and thickness of TiO2 thin films from single transmission measurements.

Effect of Temperature on TiO2/ZnO Nanostructure Thin Films

2016 ◽  
Vol 840 ◽  
pp. 262-266 ◽  
Author(s):  
Nur Syahraain Zulkiflee ◽  
Rosniza Hussin
Keyword(s):  
Thin Films ◽  
Calcination Temperature ◽  
Sol Gel ◽  
Diffraction Method ◽  
Dip Coating ◽  
Effect Of Temperature ◽  
Zno Nanostructure ◽  
Glass Substrates ◽  
Nanostructured Thin Films ◽  
Coating Method

TiO2/ZnO nanostructured thin films were grown using sol-gel route. The nanostructured thin films were deposited by dip coating method on glass substrates and calcined at different temperatures (400°C, 500°C, and 600°C). The thin films were characterized using X-Ray Diffraction method (XRD), Atomic Force Microscope (AFM), and Ultraviolet Visible Spectroscopy (UV-Vis). The XRD pattern showed that the crystallinity of the calcined thin films had improved when the calcination temperature was increased. According to AFM observation and analysis, surface roughness of the thin films controllable via growth condition. While the transmittance percentage of ultraviolet by Titanium Dioxide (TiO2) thin films through UV-Vis could be improved by combination with Zinc Oxide (ZnO). The percentage of transmittance by TiO2/ZnO nanostructured thin films continue to improve as the calcination temperature were increased.

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