標題: Optical properties of gold particle-cluster core-satellite nanoassemblies
作者: Yu, Pyng
Wen, Xiaoming
Toh, Yon-Rui
Lee, Yu-Chieh
Tang, Jau
光電工程學系
Department of Photonics
公開日期: 2013
摘要: Better understanding of core-satellite nanostructures is of great interest to researchers owing to their unusual properties and is key to their promising applications. The well-developed techniques based on protein-nanoparticle interactions were adopted to produce core-satellite nanoassemblies of similar to 10 nm core of Au nanoparticles (AuNPs) covered by Au-25@BSA or Au-10@histidine nanoclusters (NCs). The photoexcited dynamics in the core-satellite nanoassemblies were studied using steady-state and time-resolved spectroscopic measurements. Fluorescence quenching in AuNP-AuNCs core-satellite nanostructures was observed and confirmed as static quenching. The AuNPs alter neither radiative decay nor nonradiative decay in both nanoclusters. This indicates that the electron/energy transfer within the NP-NCs core-satellite nanoassemblies is absent, in contrast to the results involving other larger NP-NPs core-satellite nanoassemblies.
URI: http://hdl.handle.net/11536/22912
http://dx.doi.org/10.1039/c3ra42388c
ISSN: 2046-2069
DOI: 10.1039/c3ra42388c
期刊: RSC ADVANCES
Volume: 3
Issue: 42
起始頁: 19609
結束頁: 19616
顯示於類別:期刊論文


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