Controlled synthesis and optical properties of Cu/C core/shell nanoparticles

Copper–carbon core–shell nanoparticles were synthesized on a large scale by metal–organic chemical vapor deposition using copper (II) acetylacetonate as precursor. It was shown that the thickness of carbon shell and the diameter of copper cores could be easily tuned from 1.5 to 7.9 nm and from 15 to...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2014-08, Vol.16 (8), p.1-8, Article 2545
Main Authors: Ma, Liang, Yu, Bowen, Wang, Shiliang, Su, Geng, Huang, Han, Chen, Hong, He, Yuehui, Zou, Jin
Format: Article
Language:English
Subjects:
Carbon
Characterization and Evaluation of Materials
CHEMICAL VAPOR DEPOSITION
Chemistry and Materials Science
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Copper
Cores
Cross-disciplinary physics: materials science
rheology
Crystallinity
Exact sciences and technology
FABRICATION
Fluorescence
Fullerenes and related materials
Fullerenes and related materials
diamonds, graphite
Inorganic Chemistry
Lasers
Materials Science
Methods of nanofabrication
Nanoparticles
Nanotechnology
Optical Devices
OPTICAL PROPERTIES
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Optics
PARTICLES
Photonics
Physical Chemistry
Physics
Research Paper
Shells
Specific materials
Spectral emissivity
Synthesis
Visible and ultraviolet spectra
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Summary:Copper–carbon core–shell nanoparticles were synthesized on a large scale by metal–organic chemical vapor deposition using copper (II) acetylacetonate as precursor. It was shown that the thickness of carbon shell and the diameter of copper cores could be easily tuned from 1.5 to 7.9 nm and from 15 to 21 nm, respectively, by controlling the reaction temperature and the flow of carrier gas in the synthesis process. The ultraviolet–visible absorption and fluorescence spectral analyses demonstrated that the thickness and crystallinity of the carbon shells had a significant effect on the surface-plasmon resonance band and the fluorescence emission properties of the copper nanocores, which suggested that the carbon shells could remarkably change the surface electronic states of the copper cores.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-014-2545-5