Titanium dioxide thin films deposited by the sol-gel technique starting from titanium oxy-acetyl acetonate: gas sensing and photocatalyst applications

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.

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Sol–gel titanium dioxide thin films on platinum substrates: preparation and characterization

Journal of Electroanalytical Chemistry ◽

10.1016/s0022-0728(03)00064-0 ◽

2003 ◽

Vol 544 ◽

pp. 47-57 ◽

Cited By ~ 16

Author(s):

R.A Zoppi ◽

B.C Trasferetti ◽

C.U Davanzo

Keyword(s):

Thin Films ◽

Titanium Dioxide ◽

Sol Gel ◽

Titanium Dioxide Thin Films

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Photoluminescence of Dense Nanocrystalline Titanium Dioxide Thin Films: Effect of Doping and Thickness and Relation to Gas Sensing

ACS Applied Materials & Interfaces ◽

10.1021/am2006433 ◽

2011 ◽

Vol 3 (7) ◽

pp. 2281-2288 ◽

Cited By ~ 92

Author(s):

Candy Mercado ◽

Zachary Seeley ◽

Amit Bandyopadhyay ◽

Susmita Bose ◽

Jeanne L. McHale

Keyword(s):

Thin Films ◽

Titanium Dioxide ◽

Gas Sensing ◽

Nanocrystalline Titanium ◽

Nanocrystalline Titanium Dioxide ◽

Titanium Dioxide Thin Films ◽

Effect Of Doping

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Titanium dioxide thin films prepared by seeded supersonic beams for gas sensing applications

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2003.12.048 ◽

2004 ◽

Vol 100 (1-2) ◽

pp. 177-184 ◽

Cited By ~ 18

Author(s):

Antonella M Taurino ◽

Simonetta Capone ◽

Andrea Boschetti ◽

Tullio Toccoli ◽

Roberto Verucchi ◽

...

Keyword(s):

Thin Films ◽

Titanium Dioxide ◽

Gas Sensing ◽

Supersonic Beams ◽

Sensing Applications ◽

Titanium Dioxide Thin Films

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.667.58 ◽

2013 ◽

Vol 667 ◽

pp. 58-62 ◽

Cited By ~ 1

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.

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