Synthesis and Microstructural Analysis of Benzylthiol-functionalized Au Nanocrystals

MRS Online Proceedings Library volume 959, Article number: 202 (2006) Cite this article

Abstract

We report on the synthesis and microstructural and microanalytical analysis of dodecanethiol and benzylthiol-stabilized Au nanoparticles (diameter range between 2 nm and 10 nm). Stable functionalized gold nanoparticles were synthesized by using two different routes: a two-phase liquid-liquid method and a one-phase method. The size, strain, shape and crystalline structure of the nanocrystals were determined by a full-pattern X-ray powder diffraction analysis and high-resolution electron microscopy. The chemical environment of the Au nanocrystals and their interaction with the thiols was investigated by X-ray photoelectron spectroscopy. Photoluminescence spectroscopy measurements show a characteristic IR emission at λ=960 nm of small sized Au nanocrystals (∼3 nm). The origin of this IR emission line seems to be correlated to the Au-S bonding and the size of the nanoparticles.

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Affiliations

  1. Dept.of Physics Technology and New Materials (FIM), ENEA, Strada Statale Appia, I-72100, Brindisi, Italy

    Floriana Vitale, Luciana Mirenghi, Emanuela Piscopiello, Maria Lucia Protopapa & Leander Tapfer

  2. Dept.of Chemistry, University “La Sapienza”, P.le Aldo Moro 5, I-00185, Roma, Italy

    Floriana Vitale, Ilaria Fratoddi & Maria Vittoria Russo

  3. Institute of Crystallography, CNR, via Amendola 122/O, I-70126, Bari, Italy

    Cinzia Giannini & Antonietta Guagliardi

  4. ETH Zurich and PSI Villigen, Lab. for Neutron Scattering, Villigen PSI, CH-5232, Switzerland

    Antonio Cervellino

  5. Dept.of Physics, University of Padova, via Marzolo 8, I-35131, Padova, Italy

    Giovanni Pellegrini, Enrico Trave, Giovanni Mattei & Paolo Mazzoldi

Authors
  1. Floriana Vitale
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  2. Luciana Mirenghi
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  3. Emanuela Piscopiello
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  4. Maria Lucia Protopapa
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  5. Leander Tapfer
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  6. Cinzia Giannini
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  7. Antonietta Guagliardi
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  8. Antonio Cervellino
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  9. Giovanni Pellegrini
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  10. Enrico Trave
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  11. Giovanni Mattei
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  12. Paolo Mazzoldi
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  13. Ilaria Fratoddi
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  14. Maria Vittoria Russo
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Corresponding author

Correspondence to Floriana Vitale.

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Vitale, F., Mirenghi, L., Piscopiello, E. et al. Synthesis and Microstructural Analysis of Benzylthiol-functionalized Au Nanocrystals. MRS Online Proceedings Library 959, 202 (2006). https://doi.org/10.1557/PROC-0959-M02-02

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