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Titolo:
The stability of self-organized 1-nonanethiol-capped gold nanoparticle monolayer
Autore:
Jiang, P; Xie, SS; Yao, JN; Pang, S; Gao, HJ;
Indirizzi:
Chinese Acad Sci, Inst Phys, Beijing Lab Vacuum Phys, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100101, Peoples R China Chinese Acad Sci Beijing Peoples R China 100101 100101, Peoples R China
Titolo Testata:
JOURNAL OF PHYSICS D-APPLIED PHYSICS
fascicolo: 15, volume: 34, anno: 2001,
pagine: 2255 - 2259
SICI:
0022-3727(20010807)34:15<2255:TSOS1G>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERLATTICES; NANOCRYSTAL; DYNAMICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Jiang, P Chinese Acad Sci, Inst Phys, Beijing Lab Vacuum Phys, POB 2724, Beijing 100080, Peoples R China Chinese Acad Sci POB 2724 Beijing Peoples RChina 100080 R China
Citazione:
P. Jiang et al., "The stability of self-organized 1-nonanethiol-capped gold nanoparticle monolayer", J PHYS D, 34(15), 2001, pp. 2255-2259

Abstract

1-Nonanethiol-protected gold nanoparticles with the size of about 2 nm have been prepared by a wet chemical method through choosing a suitable ratio of Au:S (2.5:1). Size selective precipitation of nanoparticles has been used to narrow their size distribution, which facilitates the formation of an ordered nanoparticle close-packed structure. A Fourier transform infrared investigation provides the evidence of the encapsulation of Au nanoparticlesby 1-nonanethiol while an ultraviolet-visible spectrum shows a broad absorption around 520 nm, corresponding to surface plasmon band of Au nanoparticles. X-ray photoelectron spectroscopy of the samples demonstrates the metallic state of the gold (Au-0) and the existence of sulfur (S). The data fromx-ray powder diffraction measurements confirm that the gold nanoparticles have the same face-centred cubic crystalline structure as the bulk gold phase. Finally, transmission electron microscopy (TEM) characterization indicates that the size of the monodisperse colloidal gold nanoparticles is about2 nm and they can self-organize to form a two-dimensional hexagonal close-packed structure after evaporating a concentrated drop of nanoparticles-toluene solution on a carbon-coated TEM copper grid.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 06:35:38