Organized Solid Thin Films of Gold Nanorods with Different Sizes for Surface-Enhanced Raman Scattering Applications

Titelangaben

Tebbe, Moritz ; Männel, Max ; Fery, Andreas ; Pazos-Perez, Nicolas ; Alvarez-Puebla, Ramon A.:
Organized Solid Thin Films of Gold Nanorods with Different Sizes for Surface-Enhanced Raman Scattering Applications.
In: The Journal of Physical Chemistry C. Bd. 118 (2014) Heft 48 . - S. 28095-28100.
ISSN 1932-7455
DOI: https://doi.org/10.1021/jp5086685

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Abstract

Gold nanorods are among the most efficient structures for optical applications, especially in surface-enhanced Raman scattering applications. Notably, their use directly in colloidal solutions decreases their optical enhancing properties because of the impossibility of generating hot spots and the passivation of their surfaces by the surfactants used during their preparation, hindering the interaction of the analyte with the plasmonic surface. We present an easy and fast method for preparing organized lying-down nanorod films with particles of different aspect ratios, yielding efficient and clean plasmonic films populated with a large number of homogeneous hot spots.