Surface enhanced thermo lithography

Maria Laura Coluccio, Alessandro Alabastri, Simon Bonanni, Roksana Majewska, Elisabetta Dattoli, Marianna Barberio, Patrizio Candeloro, Gerardo Perozziello, Vincenzo Mollace, Enzo M. Di Fabrizio, Francesco Gentile

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We used electroless deposition to fabricate clusters of silver nanoparticles (NPs) on a silicon substrate. These clusters are plasmonics devices that induce giant electromagnetic (EM) field increments. When those EM field are absorbed by the metal NPs clusters generate, in turn, severe temperature increases. Here, we used the laser radiation of a conventional Raman set-up to transfer geometrical patterns from a template of metal NPs clusters into a layer of thermo sensitive Polyphthalaldehyde (PPA) polymer. Temperature profile on the devices depends on specific arrangements of silver nanoparticles. In plane temperature variations may be controlled with (i) high nano-meter spatial precision and (ii) single Kelvin temperature resolution on varying the shape, size and spacing of metal nanostructures. This scheme can be used to generate strongly localized heat amplifications for applications in nanotechnology, surface enhanced thermo-lithography (SETL), biology and medicine (for space resolved cell ablation and treatment), nano-chemistry.
Original languageEnglish (US)
Pages (from-to)52-58
Number of pages7
JournalMicroelectronic Engineering
Volume174
DOIs
StatePublished - Jan 13 2017

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