Macroscale Plasmonic Substrates for Highly Sensitive Surface-Enhanced Raman Scattering

María Alba, Nicolás Pazos-Pérez, Belén Vaz, Pilar Formentin, Moritz Tebbe, Miguel A. Correa-Duarte, Pedro Granero, Josep Ferré-Borrull, Rosana Álvarez, Josep Pallares, Andreas Fery, Ángel R. de Lera, Lluis F. Marsal, and Ramón A. Álvarez-Puebla

Angew. Chem. Int. Ed. 2013, 52, 6459‒6463

Modern-day wonders of the world: Nanostructured films of plasmonic pyramid arrays (see picture) were prepared by the simple stamping of preformed homogeneous nanocolloids. These materials show very high efficiency as optical enhancers and can be exploited for the design of quantitative, cheap, portable, and ultrasensitive optical sensors with excellent reversibility.