Chou JW, Lin KC, Tang YT, Hsueh FK, Lee YJ, Luo CW, Chen YN, Yuan CT, Shih HC, Fan WC, Lin MC, Chou WC, Chuu DS. Fluorescence signals of quantum dots influenced by spatially controlled array structures.
Nanotechnology 2009;
20:415201. [PMID:
19755732 DOI:
10.1088/0957-4484/20/41/415201]
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Abstract
Fluorescence signals of quantum dots (QDs) influenced by different array structures of gold-coated silicon nanorods (SiNRs) were investigated via experimental observations and two-dimensional (2D) finite element method (FEM) simulations. On the densest gold-coated SiNRs array structure, the highest QD fluorescence quenching rates were observed and on the sparsest array structure, the highest QD fluorescence enhancement rates were observed. By developing a new technique which obtains the optical image of the array structures without losing information about the QD locations, we were able to further investigate how the QD fluorescence is influenced by spatially controlled array structures.
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