Electroless deposition and nanolithography can control the formation of materials at the nano-scale for plasmonic applications
Type
ArticleAuthors
Coluccio, Maria LauraGentile, Francesco
Francardi, Marco
Perozziello, Gerardo
Malara, Natalia
Candeloro, Patrizio

Di Fabrizio, Enzo M.

KAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Date
2014-03-27Permanent link to this record
http://hdl.handle.net/10754/325364
Metadata
Show full item recordAbstract
The new revolution in materials science is being driven by our ability to manipulate matter at the molecular level to create structures with novel functions and properties. The aim of this paper is to explore new strategies to obtain plasmonic metal nanostructures through the combination of a top down method, that is electron beam lithography, and a bottom up technique, that is the chemical electroless deposition. This technique allows a tight control over the shape and size of bi- and three-dimensional metal patterns at the nano scale. The resulting nanostructures can be used as constituents of Surface Enhanced Raman Spectroscopy (SERS) substrates, where the electromagnetic field is strongly amplified. Our results indicate that, in electroless growth, high quality metal nanostructures with sizes below 50 nm may be easily obtained. These findings were explained within the framework of a diffusion limited aggregation (DLA) model, that is a simulation model that makes it possible to decipher, at an atomic level, the rules governing the evolution of the growth front; moreover, we give a description of the physical echanisms of growth at a basic level. In the discussion, we show how these findings can be utilized to fabricate dimers of silver nanospheres where the size and shape of those spheres is controlled with extreme precision and can be used for very large area SERS substrates and nano-optics, for single molecule detection. 2014 by the authors; licensee MDPI, Basel, Switzerland.Citation
Coluccio M, Gentile F, Francardi M, Perozziello G, Malara N, et al. (2014) Electroless Deposition and Nanolithography Can Control the Formation of Materials at the Nano-Scale for Plasmonic Applications. Sensors 14: 6056-6083. doi:10.3390/s140406056.Publisher
MDPI AGJournal
SensorsPubMed ID
24681672PubMed Central ID
PMC4029638ae974a485f413a2113503eed53cd6c53
10.3390/s140406056
Scopus Count
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