Lattice-matched carbon dots induced the oriented self-assembly of Cu nanoparticles
| Autor: | Zuan-Tao Lin, Wen-Zhao Chen, Wuyi Zhou, Liang Junhua, Yong-Lin Liu, Gang-Biao Jiang, Cao Piaoyang, Jian-Fei Huang |
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| Rok vydání: | 2017 |
| Předmět: |
Nanostructure
Materials science 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention symbols.namesake Crystallography Truncated octahedron Octahedron law symbols General Materials Science Self-assembly Crystallization 0210 nano-technology Mesocrystal Single crystal Raman scattering |
| Zdroj: | Carbon. 118:625-633 |
| ISSN: | 0008-6223 |
| Popis: | Orientation-induced crystallization is a widely applied method of forming crystal with highly oriented structure. Here, we reported a promising matrix for orientation-induced crystallization–carbon dots (CDs), who exhibited high lattice-matching with Cu crystal. First, CDs induce self-assembly of Cu nanoparticles through organics-inorganics interface interaction, forming self-assembled mesocrystal and single crystal with large size. Second, the CDs selectively deposit on Cu {111} plane via lattice-matching, endowing Cu self-assemblies with tunable morphology including sphere, truncated octahedron, octahedron, concave octahedron and hexpods. Third, CDs also protect Cu self-assemblies from oxidation and act as efficient interface for optical conversion and electron transfer. So using as surface-enhanced Raman scattering (SERS) substrate for the first time, the CDs-coating hexpods Cu mesocrystal require no post processing and exhibit high stability and surface-enhanced Raman scattering (SERS) activity which ordinary Cu nanostructure cannot achieve. |
| Databáze: | OpenAIRE |
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