화학공학소재연구정보센터
Applied Surface Science, Vol.314, 208-214, 2014
Laser-assisted preparation and photoelectric properties of grating-structured Pt/FTO thin films
In order to improve the transparency and conductivity of commercial fluorine-doped tin oxide (FTO) glass, platinum (Pt) layers were deposited on the FTO film by direct current (DC) magnetron sputtering, followed by being irradiating with a 532 nm nanosecond pulsed laser for the dual purpose of inducing grating structures and annealing. Introducing a Pt layer decreased the average transmittance (400-800 nm) and the sheet resistance of the initial FTO film from 80.2% and 8.4 Omega/sq to 68.6% and 7.9 Omega/sq, respectively. The ideal grating-structured Pt/FTO film was obtained by laser irradiation with a fluence of 1.05 J/cm(2), and X-ray diffraction (XRD) analysis confirmed that this film underwent optimal annealing. As a result, it exhibited an average transmittance (400-800 nm) of 84.1% and a sheet resistance of 6.8 Omega/sq. These results indicated that laser-assisted treatment combined with introduction of metal layer can effectively improve photoelectric properties of FTO single-layer films. (C) 2014 Elsevier B.V. All rights reserved.