EFFECT OF ANNEALING TEMPERATURE ON THE OPTICAL AND STRUCTURAL PROPERTIES OF DIP-COATEDAl2O3THIN FILMS PREPARED BY SOL–GEL ROUTE

F. E. Ghodsi (), M. Mafakheri and A. Novinrooz
Additional contact information
F. E. Ghodsi: Department of Physics, Faculty of Science, The University of Guilan, Namjoo Ave., P. O. Box: 41335-1914, Rasht, Iran
M. Mafakheri: Department of Physics, Faculty of Science, The University of Guilan, Namjoo Ave., P. O. Box: 41335-1914, Rasht, Iran
A. Novinrooz: Ion Beam Application Department, AEOI-NRCAM, P. O. Box: 31585-4395, Karaj, Iran

Surface Review and Letters (SRL), 2005, vol. 12, issue 05n06, 793-797

Abstract: Thin films ofAl2O3were prepared by the sol–gel process. Dip-coating technique was used for deposition of theAl2O3thin films onto glass substrates. Optical and structural properties of the films were investigated with respect to the annealing temperature (100–500°C). The structure of these films was determined by X-ray diffraction (XRD). Scanning electron microscopy (SEM) was performed for the analysis of surface morphology. For determination of the optical constants ofAl2O3thin films, UV-Visible spectrophotometry measurements were carried out. Annealing temperature affects the structural and optical properties of theAl2O3thin films. The refractive index and extinction coefficient of the films at 550 nm wavelength increase from 1.56 to 1.66, and from3.41 × 10-5to5.54 × 10-5, respectively while optical band gap and thickness of the films decrease from 4.15 eV to 4.11 eV, and 360 nm to 260 nm, respectively, by increasing annealing temperature from 100°C to 500°C.

Keywords: Aluminum oxide; sol–gel; thin films; optical constants (search for similar items in EconPapers)
Date: 2005
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X05007979
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:12:y:2005:i:05n06:n:s0218625x05007979

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X05007979

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().