CHARACTERIZATION OF PULSED LASER DEPOSITED ZNO FILMS: INFLUENCE OF LASER AND BEAM PROFILE AT 532 AND 1064 NM
ZnO thin films have been elaborated using a pulsed laser deposition (PLD) technique onto glass substrate at room temperature. The PLD process is developed in oxygen atmosphere (1*10-1 mbar). The morphology, chemical composition and optical characteristics were studied as function of laser wavelength and laser profile (532 and 1064 nm). Film properties are strongly influenced by the Gaussian profile to flat top shaped laser beam at 532 nm and 1064 nm. At regardless of laser wavelength, films prepared with flat top profile exhibit smooth surface and preferential growth direction (101), it is detected reduction of the density defects like interstitial or vacancies atoms. The optical band gap, the ratio intensity visible/UV fluorescence and pea... Ver más
1794-1237
2463-0950
12
2016-05-16
27
34
Revista EIA - 2016
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-SinDerivadas 4.0.
info:eu-repo/semantics/openAccess
http://purl.org/coar/access_right/c_abf2
