Influence of the Substrate/Photoactive Solution Interaction in Patterning and Adhesion of Photodeposited Films

Using the photochemical deposition of chromium hydroxide layers driven by a continuous Ar laser wave in a potassium chromate solution, we explored the adhesion and patterning properties of the induced deposit on glass substrates versus the composition and the pH of the photoactive solution. The experiments were performed with two interfering beams imprinting an optical pattern on the substrate and analyzing the resulting morphology of the deposit. The solubility, patterning and adhesion are investigated using both organic (acetic acid) and inorganic ( ) acids. The observed adhesion as a function of the HCl pH in the photodeposition process (surface versus bulk) was compared for several substrates. 1 ha l-0 00 95 27 1, v er si on 1 15 M ay 2 00 9 Author manuscript, published in "Applied Surface Science vol. 248, 1-4 (2005) 479-483" DOI : 10.1016/j.apsusc.2005.03.068 Ms# L-4053 Revised Version 4-ICPEPA, Lecce Italy 5-9 September 2004 PACS Numbers: 81.15.Fg, 81.10.Dn, 42.40.Eq, 42.70.Gi