ICCAS OpenIR
Formation of silver nanoparticles and self-assembled two-dimensional ordered superlattice
He, ST; Yao, JN; Jiang, P; Shi, DX; Zhang, HX; Xie, SS; Pang, SJ; Gao, HJ
2001-03-06
Source PublicationLANGMUIR
ISSN0743-7463
Volume17Issue:5Pages:1571-1575
Abstract1-Nonanethiol-capped silver nanoparticles of about 4.18 nm in diameter were prepared using a liquid-liquid two-phase method. Two-dimensional ordered superlattices of the nanoparticles were formed on carbon films coated on transmission electron microscopy (TEM) copper grids by evaporating a drop of the dispersion in chloroform. The formation process of the silver nanoparticles was investigated by UV-visible absorption spectroscopy and TEM. A blue shift of the maximum absorption peak position of the UV-vis spectra occurred at the beginning of the reaction, followed by a red shift. This result indicated that large thiol-capped silver nanoparticles were formed at the beginning, then the large particles were decomposed into small particles, and in the final stage the small particles enlarged slightly again. The TEM images show directly the same process with the results from the UV-vis spectra. In addition, the W-visible spectra of the silver nanoparticle colloidal phase obtained finally show that the system is monodisperse and can remain stable for several weeks.
Indexed BySCI
Language英语
WOS IDWOS:000167290800040
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:257[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77956
Collection中国科学院化学研究所
Corresponding AuthorGao, HJ
Affiliation1.Chinese Acad Sci, Inst Phys, Beijing Lab Vacuum Phys, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Ctr Mol Sci, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
He, ST,Yao, JN,Jiang, P,et al. Formation of silver nanoparticles and self-assembled two-dimensional ordered superlattice[J]. LANGMUIR,2001,17(5):1571-1575.
APA He, ST.,Yao, JN.,Jiang, P.,Shi, DX.,Zhang, HX.,...&Gao, HJ.(2001).Formation of silver nanoparticles and self-assembled two-dimensional ordered superlattice.LANGMUIR,17(5),1571-1575.
MLA He, ST,et al."Formation of silver nanoparticles and self-assembled two-dimensional ordered superlattice".LANGMUIR 17.5(2001):1571-1575.
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