Synthesis of AuAg core-shell nanocubes containing varying shaped cores and their localized surface plasmon resonances

We have synthesized AuAg core-shell nanocubes containing Au cores with varying shapes and sizes through modified seed-mediated methods. Bromide ions are found to be crucial in the epitaxial growth of Ag atoms onto Au cores and in the formation of the shell's cubic shape. The Au@Ag core-shell na...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 28(2012), 24 vom: 19. Juni, Seite 8959-64
1. Verfasser: Gong, Jianxiao (VerfasserIn)
Weitere Verfasser: Zhou, Fei, Li, Zhiyuan, Tang, Zhiyong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Silver 3M4G523W1G Gold 7440-57-5
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520 |a We have synthesized AuAg core-shell nanocubes containing Au cores with varying shapes and sizes through modified seed-mediated methods. Bromide ions are found to be crucial in the epitaxial growth of Ag atoms onto Au cores and in the formation of the shell's cubic shape. The Au@Ag core-shell nanocubes exhibit very abundant and distinct localized surface plasmon resonance (LSPR) properties, which are core-shape and size-dependent. With the help of theoretical calculation, the physical origin and the resonance mode profile of each LSPR peak are identified and studied. The core-shell nanocrystals with varying shaped cores offer a new rich category for LSPR control through the plasmonic coupling effect between core and shell materials 
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700 1 |a Tang, Zhiyong  |e verfasserin  |4 aut 
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