Influence of Glacial Acetic Acid and Nitric Acid as a Chelating Agent in Sol-gel Process to the Nanostructured Titanium Dioxide Thin Films

2009 ◽  
Author(s):  
M. K. Ahmad ◽  
M. Rusop ◽  
Mohamad Rusop ◽  
Tetsuo Soga
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Glacial Acetic Acid ◽  
Sol Gel ◽  
Chelating Agent ◽  
Nanostructured Titanium ◽  
Sol Gel Process ◽  
Titanium Dioxide Thin Films

Structural, Optical and Electrical Properties of Titanium Dioxide Thin Films with Different Molarity

2013 ◽  
Vol 667 ◽  
pp. 58-62 ◽  
Author(s):  
S.K.M. Maarof ◽  
Saifollah Abdullah ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Electrical Properties ◽  
Sol Gel ◽  
Visible Region ◽  
Optical And Electrical Properties ◽  
A Value ◽  
Sol Gel Process ◽  
Coating Method ◽  
Titanium Dioxide Thin Films

Titanium dioxide, TiO2 is one of the semiconductor materials that can be produced in many ways, such as magnetron sputtering, CVD, and sol-gel process. This paper studied on the production of TiO2 by sol-gel method using titanium tetra (IV) isopropoxide, TTiP. The solution of TiO2 then deposited as a thin films onto glass substrate by spin-coating method. The purpose of this paper is to investigate the effect of molarity on the morphology, optical and electrical properties of the thin films. The effect on the morphology was observed by AFM. The electrical properties then observed by IV characteristic and finally on the optical properties were investigated by UV-Vis. The transmission obtained from UV-Vis showed that TiO2 thin films are decreased around 18% at higher molarity in a visible region. The bandgap also decrease at high molarity. Higher molarity of TiO2 in current-voltage characteristic gave a value of current density for 1.03×10-4 A/m2 and resistivity 1.95×107 Ωm.

Characterization and application of niobium-doped titanium dioxide thin films prepared by sol–gel process

2021 ◽  
Vol 127 (8) ◽  
Author(s):  
Gustavo Henrique M. Gomes ◽  
Magnum A. M. L. de Jesus ◽  
André S. Ferlauto ◽  
Marcelo M. Viana ◽  
Nelcy D. S. Mohallem
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Niobium Doped ◽  
Doped Titanium Dioxide ◽  
Titanium Dioxide Thin Films

scholarly journals Optical and electrical properties of sol-gel spin coated titanium dioxide thin films

2017 ◽  
Vol 225 ◽  
pp. 012021
Author(s):  
Anusuya Sahoo ◽  
A R Jayakrishnan ◽  
K Kamakshi ◽  
J P B Silva ◽  
K C Sekhar ◽  
...  
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Electrical Properties ◽  
Sol Gel ◽  
Optical And Electrical Properties ◽  
Titanium Dioxide Thin Films

Preparation of Titanium Oxide and Metal Titanates as Powders, Thin Films, and Microspheres by Novel Inorganic Sol-Gel Process

2005 ◽  
Vol 900 ◽  
Author(s):  
A. Deptuła ◽  
Kenneth C Goretta ◽  
Tadeusz Olczak ◽  
Wieslawa Lada ◽  
Andrzej G. Chmielewski ◽  
...  
Keyword(s):  
Thin Films ◽  
Ascorbic Acid ◽  
Nitric Acid ◽  
Titanium Oxide ◽  
Sol Gel ◽  
Solid State Reactions ◽  
X Ray Diffraction ◽  
Metal Hydroxides ◽  
X Ray ◽  
Sol Gel Process

ABSTRACTTitanium oxide and titanates based on Ba, Sr and Ca were prepared from commercial solutions of TiCl4 and HNO3. The main preparation steps for the sols consisted of elimination of chloride anions by distillation with nitric acid and addition of metal hydroxides for the titanates. Resulting sols were gelled and used to (1) prepare irregularly shaped powders by evaporation; (2) produce by a dipping technique thin films on glass, Ag, or Ti substrates; and (3) produce spherical powders (diameters <100 μm) by solvent extraction. Results of thermal and X-ray-diffraction analyses indicated that the temperatures required to form the various compounds were lower than those necessary to form the compounds by conventional solid-state reactions and comparable to those required with use of organometallic based sol-gel methods. Temperatures of formation could be further reduced by addition of ascorbic acid to the sols.

Self-Organization in Nanoparticle Titanium Dioxide Thin Films

1998 ◽  
Vol 519 ◽  
Author(s):  
S.D. Burnside ◽  
V. Shklover ◽  
C.A. Barbe ◽  
K. Brooks ◽  
P. Comte ◽  
...  
Keyword(s):  
Thin Films ◽  
Titanium Dioxide ◽  
Sol Gel ◽  
Photovoltaic Performance ◽  
Nitrogen Adsorption ◽  
Self Organization ◽  
X Ray Diffraction ◽  
Nanocrystalline Titanium ◽  
Titanium Dioxide Thin Films ◽  
Adsorption Desorption

AbstractNanocrystalline titanium dioxide has been synthesized using a sol-gel technique followed by hydrothermal growth at temperatures in the range 190-270°C. Thin films of these colloids were studied using x-ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorption/desorption. Self-organization of the nanocrystalline particles in regular arrays was observed in films made from colloids autoclaved at lower temperatures. We present herein initial photovoltaic performance of these semiconducting films used as working electrodes in a dye-sensitized solar cell.

Sign in / Sign up

Export Citation Format

Share Document