Two-Dimensional Plasmonic Superlattice Based on Au Nanoparticles Self-Assembling onto a Functionalized Substrate

Content Provider	Semantic Scholar
Author	Corricelli, Michela Depalo, Nicoletta Fanizza, Elisabetta Altamura, Davide Giannini, Cinzia Siliqi, Dritan Mundo, Rosa Di Palumbo, Fabio Kravets, V. G. Grigorenko, Alexander N. Agostiano, A. Striccoli, Marinella Curri, M. L.
Copyright Year	2014
Abstract	Au nanoparticles (NPs) self-assembled by means of a simple solvent evaporation strategy in a two-dimensional (2D) superlattice with a highly controlled geometry and extending over micrometers squared when drop cast onto a suitably functionalized silicon substrate. The assembly procedure was defined by carefully monitoring experimental parameters, namely, dispersing solvent, deposition temperature, Au NP concentration, and chemistry of supporting substrate. The investigated parameters were demonstrated to play a significant role on the delicate energetic balance of the mutual NPs as well as NP–substrate interactions, ultimately directing the NP assembly. Remarkably, substrate surface chemistry revealed to be decisive to control the extent of the organization. Scanning electron microscopy demonstrated that the 2D superlattice extends uniformly over hundreds of square micrometers. Grazing-incidence small-angle X-ray scattering investigation validated the Au NP organization in crystalline domains and confirme...
Starting Page	7579
Ending Page	7590
Page Count	12
File Format	PDF HTM / HTML
DOI	10.1021/jp4126792
Volume Number	118
Alternate Webpage(s)	http://www.ipcf.cnr.it/Biblio/IPCF_BA_2014_artT.pdf
Alternate Webpage(s)	https://doi.org/10.1021/jp4126792
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article