130673 20240130150402.0 doi 10.1021/acsami.9b12624 sideral 115910 ART-2019-115910 eng Pagliusi, P. Tunable surface patterning of azopolymer by vectorial holography: the role of photoanisotropies in the driving force 2019 The capability to pattern polymer surfaces at different length scales is an important goal in different research fields, including display technologies, microelectronics, optics, as well as biorelated and medical science. However, the ability to optically and dynamically manipulate topography is a key feature enabling remote control of associated effects/processes mediated by the surface. Azopolymers are largely investigated to this aim based on their sensitivity to optical fields and reconfigurability capabilities. In this work, surface relief formation induced by polarization patterns on an amorphous azopolymer structurally engineered to have large photoinduced birefringence has been investigated both experimentally and theoretically. Based on the different light polarization patterns, depth and shape of the relief grating can be controlled. An optically induced gradient force model that includes both the spatial distribution and the anisotropy of the material permittivity has been theoretically analyzed. The proposed approach is able to explain the experimental results and to overcome the limitation of existing models. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 8.758 2019 NANOSCIENCE & NANOTECHNOLOGY 18 / 103 = 0.175 2019 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 33 / 314 = 0.105 2019 Q1 T1 2.568 2019 Materials Science (miscellaneous) 2019 Q1 Nanoscience and Nanotechnology 2019 Q1 Medicine (miscellaneous) 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Audia, B. Provenzano, C. Piñol, M. Universidad de Zaragoza (orcid)0000-0001-5556-2172 Oriol, L. Universidad de Zaragoza (orcid)0000-0002-0922-5615 Cipparrone, G. 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 11, 37 (2019), 34471-34477 ACS appl. mater. interfaces ACS applied materials & interfaces 1944-8244 1178180 http://zaguan.unizar.es/record/130673/files/texto_completo.pdf Postprint 750072 http://zaguan.unizar.es/record/130673/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130673 articulos driver 2024-01-30-14:06:47 ARTICLE