Metal and Metal Oxide Transformation and Texturing Using Pulsed Fiber Laser. (2015)

• Record Type: Journal Article
• Authors: Kotsedi, L.; Sechogela, P.; Eaton, S.M.; Demir, A.G.; Franceschini, F.; Previtali, B.; Ramponi, R.; Swart, H.C.; Maaza, M.
• Is Part Of: Materials today. Volume 2:Number 7(2015)
• Page Start: 3950
• Page End: 3956
• Publication Date: 2015
• Subjects: Amorphous -- Oxidation -- High resolution SEM -- Vanadium oxide -- TOF-SIMS -- UV-Vis-NIR reflectance -- Laser fluence.; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2015.08.024
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Thin films of amorphous vanadium metal were deposited on a glass substrate using the electron beam evaporator, these thin films were thenexposed to a focused1064 nm wavelengthnanosecond laser pulses. The laser fluence was selected such that it was below the ablation threshold of the films, x-ray diffraction measurementrevealedthe formation of an oxide phase of vanadium after the laser exposure.The time of flight-secondary ion mass spectrometry data analysisshowed a uniform elemental distribution of the elements on the films, whereas the Rutherford backscattering spectrometry results showed that the concentration of oxygen as a function of the laser fluence wasincreasing, hinting to the incorporation of the oxygen atoms in the films as the laser fluenceincreases. UV-Vis-NIRpercentage reflectance measurements showed small evolution in the visible part of the spectrum due to laserexposure.