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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M.-C. Daniel, D. Astruc, Chem. Rev. 104, 293, (2004).
M. Busby, C. Chiorboli, F. Scandola, J. Phys. Chem. B 110, 6020, (2006) and references therein.
M. Brust, M. Walker, D. Bethell, D.J. Schiffrin, R.J. Whyman, J. Chem. Soc. Chem. Commun. 801, (1994).
S.R. Johnson, S.D. Evans, S.W. Mahon, A. Ulman, Langmuir 13, 51, (1997).
C. K. Yee, R. Jordan, A. Ulman, H. White, A. King, M. Rafailovich, J. Sokolov, Langmuir 15, 3486, (1999).
F. Vitale, L. Mirenghi, E. Piscopiello, G. Pellegrini, E. Trave, G. Mattei, I. Fratoddi, M.V. Russo, L. Tapfer, P. Mazzoldi, Mat. Sci. Eng. C, (2006) (in press).
A. Cervellino, C. Giannini, A. Gagliardi, D. Zanchet, Eur. Phys. J. B 41, 485, (2004).
M. Buttner, H. Kroger, I. Gerhards, D. Mathys, P. Oelhafen, Thin Solid Films 495, 180, (2006).
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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