• Open Access

Organized Plasmonic Clusters with High Coordination Number and Extraordinary Enhancement in Surface-Enhanced Raman Scattering (SERS)

Authors

  • Dr. Nicolas Pazos-Perez,

    1. Physikalische Chemie II, Universität Bayreuth, Universitätsstrasse 30, 95440 Bayreuth (Germany)
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    • These authors contributed equally to this work.

  • Dr. Claudia Simone Wagner,

    1. Colloid chemistry, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz (Germany)
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    • These authors contributed equally to this work.

  • Dr. Jose M. Romo-Herrera,

    1. Centro de Nanociencias y Nanotecnología, UNAM, km 107 Carretera Tijuana-Ensenada, C.P. 22860, Ensenada B.C. (México)
    2. Departamento de Química-Física, Universidade de Vigo, 36310 Vigo (Spain)
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  • Prof. Luis M. Liz-Marzán,

    1. Departamento de Química-Física, Universidade de Vigo, 36310 Vigo (Spain)
    2. Ikerbasque, Basque Foundation for Science, 48011 Bilbao (Spain) and Centre for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 182, 20009 San Sebastián (Spain)
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  • Prof.  F Javier García de Abajo,

    Corresponding author
    1. Instituto de Quimica-Fisica Rocasolano-CSIC, Serrano 119, 28006, Madrid (Spain)
    • Instituto de Quimica-Fisica Rocasolano-CSIC, Serrano 119, 28006, Madrid (Spain)
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  • Prof. Alexander Wittemann,

    Corresponding author
    1. Colloid chemistry, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz (Germany)
    • Colloid chemistry, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz (Germany)
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  • Prof. Andreas Fery,

    Corresponding author
    1. Physikalische Chemie II, Universität Bayreuth, Universitätsstrasse 30, 95440 Bayreuth (Germany)
    • Physikalische Chemie II, Universität Bayreuth, Universitätsstrasse 30, 95440 Bayreuth (Germany)
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  • Prof. Ramón A. Alvarez-Puebla

    Corresponding author
    1. ICREA (Catalan Institution for Research and Advanced Studies), Passeig Lluís Companys 23, 08010 Barcelona (Spain) and Department of Electronic Engineering & Center for Chemical Technology of Catalonia, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona (Spain)
    • ICREA (Catalan Institution for Research and Advanced Studies), Passeig Lluís Companys 23, 08010 Barcelona (Spain) and Department of Electronic Engineering & Center for Chemical Technology of Catalonia, Universitat Rovira i Virgili, Avda. Països Catalans 26, 43007 Tarragona (Spain)
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  • This work was funded by the Spanish Ministerio de Economia y Competitividad (CTQ2011-23167, MAT2010-15374, MAT2010-14885, and Consolider NanoLight.es), the Xunta de Galicia (09TMT011314PR), and the European Research Council (Advanced Grant PLASMAQUO; Starting Grant METAMECH; and FP7/2008 Metachem Project under grant agreement no. 228762); German research foundation (DFG) within collaborative research center 840, TPs A3 and B5.

Abstract

original image

Highly symmetric gold nanoparticle clusters with coordination numbers up to seven were produced by using coating with block copolymers. The resulting clusters were separated by density gradient centrifugation and characterized by using SEM and optical spectroscopy (see picture).

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