Transformative Heterointerface Evolution and Plasmonic Tuning of Anisotropic Trimetallic Nanoparticles
| Autor: | Gyeong-Hwan Kim, Mouhong Lin, Jae-Ho Kim, Jeong-Wook Oh, Jwa-Min Nam |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Field (physics) Chemistry Physics::Optics Nanoparticle Nanotechnology 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Catalysis 0104 chemical sciences Colloid and Surface Chemistry Nanocrystal Particle Surface plasmon resonance 0210 nano-technology Anisotropy Plasmon |
| Zdroj: | Journal of the American Chemical Society. 139(30) |
| ISSN: | 1520-5126 |
| Popis: | Multicomponent nanoparticles that incorporate multiple nanocrystal domains into a single particle represent an important class of material with highly tailorable structures and properties. The controlled synthesis of multicomponent NPs with 3 or more components in the desired structure, particularly anisotropic structure, and property is, however, challenging. Here, we developed a polymer and galvanic replacement reaction-based transformative heterointerface evolution (THE) method to form and tune gold-copper-silver multimetallic anisotropic nanoparticles (MAPs) with well-defined configurations, including structural order, particle and junction geometry, giving rise to extraordinarily high tunability in the structural design, synthesis and optical property of trimetallic plasmonic nanoantenna structures. MAPs can easily, flexibly integrate multiple surface plasmon resonance (SPR) peaks and incorporate various plasmonic field localization and enhancement within one structure. Importantly, a heteronanojunction in these MAPs can be finely controlled and hence tune the SPR properties of these structures, widely covering UV, visible and near-infrared range. The development of the THE method and new findings in synthesis and property tuning of multicomponent nanostructures pave ways to the fabrication of highly tailored multicomponent nanohybrids and realization of their applications in optics, energy, catalysis and biotechnology. |
| Databáze: | OpenAIRE |
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