The spontaneous formation and plasmonic properties of ultrathin gold-silver nanorods and nanowires stabilized in oleic acid

  1. Crespo, J. 1
  2. López-De-Luzuriaga, J.M. 1
  3. Monge, M. 1
  4. Elena Olmos, M. 1
  5. Rodríguez-Castillo, M. 4
  6. Cormary, B. 4
  7. Soulantica, K. 4
  8. Sestu, Matteo . 2
  9. Falqui, A. 3
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 University of Cagliari
    info

    University of Cagliari

    Cagliari, Italia

    ROR https://ror.org/003109y17

  3. 3 King Abdullah University of Science and Technology
    info

    King Abdullah University of Science and Technology

    Jeddah, Arabia Saudí

    ROR https://ror.org/01q3tbs38

  4. 4 Université de Toulouse
    info

    Université de Toulouse

    Tolosa, Francia

Revista:
Chemical Communications

ISSN: 1359-7345

Año de publicación: 2015

Volumen: 51

Número: 93

Páginas: 16691-16694

Tipo: Artículo

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DOI: 10.1039/C5CC05542C SCOPUS: 2-s2.0-84947475104 WoS: WOS:000364861300024 GOOGLE SCHOLAR

Otras publicaciones en: Chemical Communications

Resumen

Ultrathin Au-Ag alloy nanorods and nanowires of different lengths and ca. 1.9 nm diameter are prepared through a low-temperature decomposition of the precursor [Au2Ag2(C6F5)4(OEt2)2]n in oleic acid. This nanostructure formation has been studied through TEM, HRTEM, EDS, HS-SPME-GC-MS and 19F NMR spectroscopy. The UNRs and UNWs display a length-dependent broad band in the mid-IR region that is related to the longitudinal mode of the surface plasmon resonance of the ultrathin nanostructures. © The Royal Society of Chemistry 2015.