Ngom, B.D.Sakho, O.Ndiaye, S.Bartali, R.Diallo, A.Gaye, M.B.Bady, S.Manyala, Ncholu I.Maaza, M.Beye, A.C.2016-09-022016-09-022011-08-11Ngom, BD, Sakho, O, Ndiaye, S, Bartali, R, Diallo, A, Gaye, MB, Bady, S, Manyala, N, Maaza, M & Beye, AC 2011, 'Photon-induced tunable and reversible wettability of pulsed laser deposited W-doped ZnO nanorods', European Physical Journal : Applied Physics, vol. 55, no. 2, pp. 20501-1-20501-5.1286-0042 (print)1286-0050 (online)10.1051/epjap/2011100296http://hdl.handle.net/2263/56586ZnO nanorods arrays were prepared on soda lime glass substrate by pulsed laser deposition method. Hexagonal rod-like ZnO rods were obtained under different conditions.Well-defined ZnO nanorods arrays were selected among different samples having various morphologies and sizes already studied by X-ray diffraction (XRD) and atomic force microscopy (AFM). Here, we report on the contact angle measurement (CAM) of one of these samples. A systematic change of the surface wettability is observed in W-doped ZnO nanostructures. The water contact angle (WCA) of a 1 wt.% of WO3 target content was found to be the transition doping level from hydrophilic surface to a hydrophobic surface. We attributed the transition in surface wettability of the film with the doping to incorporation increase of tungsten into the film. Such characteristic surface wettability can play a key role in the adhesion of various layers on W-ZnO nanorods arrays for optoelectronic device applications.en© EDP Sciences, 2011Soda lime glassZnO NanorodsX-ray diffraction (XRD)Atomic force microscopy (AFM)Water contact angle (WCA)Article