Bulletin of Materials Science, ( ISI ), Volume (37), No (3), Year (2014-5) , Pages (527-532)

Title : ( Structural verification and optical characterization of SiO2–Au–Cu2O nanoparticles )

Authors: hosein rezvani , Nasser Shahtahmassebi , Mahmood Rezaee Roknabadi , MASOUD KARIMIPOUR , Mohammad Mahdi Bagheri Mohagheghi ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract. In this paper, SiO2–Au–Cu2O core/shell/shell nanoparticles were synthesized by reducing gold chloride on 3-amino-propyl-triethoxysilane molecules attached silica nanoparticle cores for several stages. Cu2O nanoparticles were synthesized readily with the size of 4–5 nm using a simple route of sol–gel method. Then, they were clung to the surface of Au seeds. The morphology of the resultant particles was studied using transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Transmission electron microscopy images demonstrate growth of monodispersed gold seeds and Cu2O nanoparticles in narrow size up to 10 nm and 5 nm, respectively. The presence of gold and Cu2O coating was confirmed by X-ray diffraction, Fourier transform infrared spectroscopy and UV–Vis spectroscopy. Absorption spectroscopy shows considerably 40 nm blue shift in absorption edge for SiO2–Au–Cu2O nanostructure rather than SiO2–Au core/shell nanoparticles.

Keywords

Plasmon; blue shift; SiO2–Au–Cu2O core/shell/shell; sol–gel; APTES
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1043049,
author = {Rezvani, Hosein and Shahtahmassebi, Nasser and Rezaee Roknabadi, Mahmood and MASOUD KARIMIPOUR and Mohammad Mahdi Bagheri Mohagheghi},
title = {Structural verification and optical characterization of SiO2–Au–Cu2O nanoparticles},
journal = {Bulletin of Materials Science},
year = {2014},
volume = {37},
number = {3},
month = {May},
issn = {0250-4707},
pages = {527--532},
numpages = {5},
keywords = {Plasmon; blue shift; SiO2–Au–Cu2O core/shell/shell; sol–gel; APTES molecules},
}

[Download]

%0 Journal Article
%T Structural verification and optical characterization of SiO2–Au–Cu2O nanoparticles
%A Rezvani, Hosein
%A Shahtahmassebi, Nasser
%A Rezaee Roknabadi, Mahmood
%A MASOUD KARIMIPOUR
%A Mohammad Mahdi Bagheri Mohagheghi
%J Bulletin of Materials Science
%@ 0250-4707
%D 2014

[Download]