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Proceedings Paper

Tunable hydrophobicity assisted by light-responsive surface micro-structures
Author(s): F. Pirani; A. Angelini; S. Ricciardi; F. Frascella; R. Rizzo; F. Ferrarese Lupi; N. De Leo; L. Boarino; Emiliano Descrovi
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Paper Abstract

In this work we investigate new degrees of freedom in controlling the physical properties of structured photo-sensitive materials that can be usefully exploited in many application fields. We employ azopolymers, a class of light responsive materials, which are structured in micro-pillar array. A reversible and controlled change in morphology of a pre-patterned polymeric film under properly polarized illumination is demonstrated to provide the opportunity to engineer surface structures and dynamically tune their properties. We exploit the laser process taking advantage of the light-induced deformation of a micro-textured azopolymeric film in order to modify the surface hydrophobicity along specific direction.

Paper Details

Date Published: 17 February 2017
PDF: 7 pages
Proc. SPIE 10092, Laser-based Micro- and Nanoprocessing XI, 100920A (17 February 2017); doi: 10.1117/12.2251008
Show Author Affiliations
F. Pirani, Istituto Italiano di Tecnologia (Italy)
Politecnico di Torino (Italy)
A. Angelini, Politecnico di Torino (Italy)
S. Ricciardi, Politecnico di Torino (Italy)
F. Frascella, Politecnico di Torino (Italy)
R. Rizzo, Politecnico di Torino (Italy)
F. Ferrarese Lupi, Istituto Nazionale di Ricerca Metrologica (Italy)
N. De Leo, Istituto Nazionale di Ricerca Metrologica (Italy)
L. Boarino, Istituto Nazionale di Ricerca Metrologica (Italy)
Emiliano Descrovi, Politecnico di Torino (Italy)

Published in SPIE Proceedings Vol. 10092:
Laser-based Micro- and Nanoprocessing XI
Udo Klotzbach; Kunihiko Washio; Rainer Kling, Editor(s)

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