Effect of the La3+-Doping Concentration on the Properties of TiO2 Thin Films by Sol-Gel Process

Tao Bai; Shi Gen Zhu

doi:10.4028/www.scientific.net/AMR.1082.451

Paper Titles

Vibration of Laminated Composite Plates by Generalized Multiquadrics with Optimal Shape Parameter and Exponent
p.429

Shape Parameter Optimization of Inverse Multiquadrics Radial Basis Function for Vibration of Laminated Composite Plates
p.433

Silicon Doped Boron and Glass Based Surface Bonding Strength Analysis via Anodic Bonding Approach
p.437

Failure Analysis and Precaution of NPN Transistors G3G33A
p.441

Effect of the La³⁺-Doping Concentration on the Properties of TiO₂ Thin Films by Sol-Gel Process
p.451

The Nano Tungsten Thin Film and its Contacting Property with Aluminium Electrodes
p.455

Out-of-Plane Thermal Conductivity of Silicon Thin Film Doped with Germanium
p.459

Superhydrophobic Polyimide via UV Photo-Oxidation and Fluoroalkyl Silanization: Changes in Surface Chemistry
p.463

Ambient Temperature Based Thermal Aware Energy Efficient ROM Design on FPGA
p.467

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1082Effect of the La3+-Doping Concentration on the...

Effect of the La³⁺-Doping Concentration on the Properties of TiO₂ Thin Films by Sol-Gel Process

Abstract:

Various rare earth (La³⁺) doped titaniumdioxide(TiO₂) thin films (La³⁺-doped TiO₂) have been successfully prepared on a glass substrate by a sol–gel dip coating route using titanium tetraisopropoxide and lanthanum chloride as the initial materials. After the La³⁺-doped TiO₂ thin films were calcined at 500°C for 1h, the effect of La³⁺-doping on the properties of films were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric- differential scanning calorimeter techniques (TG/DTG). The XRD results showed that all La³⁺-doped TiO₂ thin films contained only a single crystalline phase of anatase TiO₂ after calcining at 500°C for 1h. Moreover, the XRD results also revealed that the crystallinity and crystalline size decreased with increased La³⁺-doping. SEM micrographs showed that all La³⁺- doped TiO₂ thin films have smooth surfaces containing granular nanocrystallines and are without cracks. TG/DTG measurement showed that there was a significant weight loss of the TiO₂ precursor calcined in the temperature range from ambient to 660 °C, which was due to the volatilizing of water and organic and the phase transformation.

You might also be interested in these eBooks

Advanced Materials and Engineering Materials IV

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 1082)

Pages:

451-454

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1082.451

Citation:

Cite this paper

Online since:

December 2014

Authors:

Tao Bai*, Shi Gen Zhu

Keywords:

Films, Rare Earth, Sol-Gel, TiO₂

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] B. O'Regan, M. Grätzel. A low-cost, high-efficiency solar call based on dye-sensitized colloidal TiO2 films[J]. Nature , 353(1991)937–940.

DOI: 10.1038/353737a0

Google Scholar

[2] M.V. Dozzi, C. D'Andrea, B. Ohtani, G. Valentini, E. Selli. Fluorine-dope TiO2 materials: photocatalytic activity vs. time-resolved photoluminescence[J]. The Journal of Physical Chemistry. C, 117(2013)25586–25595.

DOI: 10.1021/jp4095563

Google Scholar

[3] V.A. Ganesh, A.S. Nair, H.K. Raut, T.M. Walsh, S. Ramakrishna. Photocatalytic superhydrophilic TiO2 coating on glass by electrospinning[J]. RSC Advances. 2(2012)2067–(2072).

DOI: 10.1039/c2ra00921h

Google Scholar

[4] L. Huang, T. Liu, H. Zheng, W. Guo, W. Zeng. Hydrothermal synthesis of different TiO2 nanostructures: structure, growth and gas sensor properties[J]. J. Mater. Sci.: Mater. Electron. 23(2012)2024–(2029).

DOI: 10.1007/s10854-012-0697-6

Google Scholar

[5] Henrist C, Dewalque J, Mathis F, Cloots R. Control of the porosity of anatasethin films prepared by EISA: influence of thickness and heat treatment[J]. Microporous and Mesoporous Materials, 117(2009)292–296.

DOI: 10.1016/j.micromeso.2008.07.001

Google Scholar

[6] Crepaldi EL, Soler-Illia GJdAA, Grosso D, Cagnol F, Ribot F, SanchezC. Controlled formation of highly organized mesoporous titania thin films: from mesostructured hybrids to mesoporous nanoanatase TiO2[J]. Journal of the American Chemical Society, 125(2003).

DOI: 10.1021/ja030070g

Google Scholar