title: Conducting shrinkable nanocomposite based on au-nanoparticle implanted plastic sheet: tunable thermally induced surface wrinkling.
abstract: A thermally shrinkable and conductive nanocomposite material is prepared by supersonic cluster beam implantation (SCBI) of neutral Au nanoparticles (Au NPs) into a commercially available thermo-retractable polystyrene (PS) sheet. Micronanowrinkling is obtained during shrinking, which is studied by means of SEM, TEM and AFM imaging. Characteristic periodicity is determined and correlated with nanoparticle implantation dose, which permits us to tune the topographic pattern. Remarkable differences emerged with respect to the well-known case of wrinkling of bilayer metal-polymer. Wrinkled composite surfaces are characterized by a peculiar multiscale structuring that promises potential technological applications in the field of catalytic surfaces, sensors, biointerfaces, and optics, among others.
authors: †Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy.
authors: Francesco
authors: F
authors: Greco
authors: ‡CIMAINA and Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, 20133 Milano, Italy.
authors: Andrea
authors: A
authors: Bellacicca
authors: §Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy.
authors: Mauro
authors: M
authors: Gemmi
authors: §Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy.
authors: Valentina
authors: V
authors: Cappello
authors: †Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy.
authors: Virgilio
authors: V
authors: Mattoli
authors: ‡CIMAINA and Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, 20133 Milano, Italy.
authors: Paolo
authors: P
authors: Milani
mesh_terms: D000327:Adsorption; D004553:Electric Conductivity; D006046:Gold / Q000737:chemistry*; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D054802:Molecular Imprinting / Q000379:methods*; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D010969:Plastics / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature
chemical_list: D010969:Plastics; D006046:Gold
keywords: buckling; implantation; metal NPs; nanocomposite; pattern; shrink; surface wrinkling