Growth and Characterization of Iron Oxide Nanocrystalline Thin Films via Sol-Gel Dip Coating Method

The paper describes two methods of syntheses of iron oxides, microstructure and morphology of magnetite nanoparticles. Nanocomposite thin films of SiO2/Fe3O4 have been prepared with sol-gel dip coating technique: dip-coating from SiO2/Fe3O4 sol and encapsulation magnetite between two SiO2 layers. Structural and morphological characteristics of iron oxides particles and prepared film were analyzed by X-Ray Diffraction, SEM, FTIR, DTA, AFM. AFM topography of surface and measurements of roughness has shown that using iron oxide encapsulation between two SiO2 layers to provide the even distribution of iron oxide, results as high quality films with low Rq values 1.5 2.7 nm.

Download Full-text

Synthesis and Characterization of Nanocrystalline TiO2 Thin Films by Sol-Gel Dip Coating Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.678.108 ◽

2013 ◽

Vol 678 ◽

pp. 108-112 ◽

Cited By ~ 2

Author(s):

Narayanaswamy Gokilamani ◽

N. Muthukumarasamy ◽

Mariyappan Thambidurai

Keyword(s):

Thin Films ◽

Sol Gel ◽

Dip Coating ◽

X Ray Diffraction ◽

Tio2 Thin Films ◽

Atomic Force ◽

Coating Method ◽

Nanocrystalline Titanium ◽

Dip Coating Method

Nanocrystalline titanium dioxide (TiO2) thin films have been prepared by dip coating method. The TiO2 thin films have been coated on glass substrate and annealed at 400, 450 and 500° C respectively. The X- ray diffraction pattern shows that TiO2 nanocrystalline thin films are of anatase structure and the grain size is found to be in the range of 20-35 nm. The annealed films have been observed to be nanocrystalline in nature and the crystallinity has been observed to improve on annealing. The surface topography of the films has been studied using atomic force microscope. The optical properties have been studied using transmittance spectra. The band gap has been found to lie in the range of 3.70 to 3.83 eV depending on the annealing temperature.

Download Full-text

Influence of pH on ZnO nanocrystalline thin films prepared by sol–gel dip coating method

Bulletin of Materials Science ◽

10.1007/s12034-012-0305-7 ◽

2012 ◽

Vol 35 (3) ◽

pp. 327-331 ◽

Cited By ~ 30

Author(s):

K SIVAKUMAR ◽

V SENTHIL KUMAR ◽

N MUTHUKUMARASAMY ◽

M THAMBIDURAI ◽

T S SENTHIL

Keyword(s):

Thin Films ◽

Sol Gel ◽

Dip Coating ◽

Coating Method ◽

Dip Coating Method ◽

Influence Of Ph ◽

Nanocrystalline Thin Films

Download Full-text

Characterization of TiO2: ZnO thin films by sol-gel dip coating method

10.1063/5.0058239 ◽

2021 ◽

Author(s):

O. A. Aksan ◽

Z. B. B. Oral

Keyword(s):

Thin Films ◽

Sol Gel ◽

Dip Coating ◽

Zno Thin Films ◽

Coating Method ◽

Dip Coating Method

Download Full-text

Influence of Annealing Temperature on Nanocrystalline ZnO Thin Films Prepared by Sol-Gel Dip Coating Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.678.97 ◽

2013 ◽

Vol 678 ◽

pp. 97-102

Author(s):

K. Sivakumar ◽

V. Senthil Kumar ◽

Mariyappan Thambidurai ◽

Thottipalayam Subramaniyan Senthil

Keyword(s):

Thin Films ◽

Grain Size ◽

Band Gap ◽

Annealing Temperature ◽

Sol Gel ◽

Dip Coating ◽

Zno Thin Films ◽

Coating Method ◽

Dip Coating Method ◽

Nanocrystalline Thin Films

ZnO nanocrystalline thin films have been prepared on glass substrates by sol-gel dip coating method. The ZnO thin films have been coated at room temperature for the pH value of 10 and annealed at 300°, 400° and 500°C respectively. The X- ray diffraction pattern shows that ZnO nanocrystalline thin films are of hexagonal structure and the grain size is found to be in the range of 25-45 nm. Scanning electron microscope images show that the surface morphology improves with increase of annealing temperature. The TEM analysis reveals the formation of ZnO nanocrystalline with an average grain size of 44 nm. The compositional analysis results show that Zn and O are present in the sample. The optical studies shows that the films are highly transparent and exhibit a direct band gap. The band gap has been found to lie in the range of 3.07 to 3.32 nm depending on the annealed temperature suggesting the formation of ZnO nanocrystalline thin films.

Download Full-text

Synthesis of WO3 Electrochromic Sensor by Sol-Gel Method and Characterization of Its Electrochemical and Optical Properties

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.317-318.807 ◽

2006 ◽

Vol 317-318 ◽

pp. 807-810 ◽

Cited By ~ 3

Author(s):

Chang Yeoul Kim ◽

Jin Wook Choi ◽

Tae Yeoung Lim ◽

Duck Kyun Choi

Keyword(s):

Thin Film ◽

Sol Gel ◽

Dip Coating ◽

Xrd Pattern ◽

Starting Solution ◽

Oxide Crystal ◽

Heat Treated ◽

Coating Method ◽

Dip Coating Method

Electrochromic WO3 thin film was prepared by using tungsten metal solution in hydrogen peroxide as a starting solution and by sol-gel dip coating method. XRD pattern showed that tungsten oxide crystal phase formed at 400. In the view of electrochemical property, WO3 thin film which was heat-treated at 300 and was amorphous had better than that of the crystalline phase.

Download Full-text