Influence of the laser power on the optical properties of thin films prepared by laser evaporation

✍ Scribed by M. Zuluaga; A. Pardo; J. Torres; J.E. Alfonso

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 130 KB
• Volume: 39
• Category: Article
• ISSN: 0026-2692
• DOI: 10.1016/j.mejo.2008.01.010

✦ Synopsis

MoO 3 thin films were prepared in this work by evaporating an MoO 3 target using a CO 2 laser operating on a continuous wave mode. The samples were grown at different laser light intensities. They were characterized through X-ray diffraction and transmittance measurements in the visible spectrum. The optical properties of the material were determined from the simulation of the experimental transmittance spectra. It was found that samples prepared at low laser intensities grow in the phase of MoO 3 . The samples present a mix of MoO 3 phases a; b and b 0 if the laser intensity is increased. The refraction index values decrease when laser radiation is increased.