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Large Enhancement of Quantum Dot Fluorescence by Highly Scalable Nanoporous Gold
Author(s) -
Zhang Ling,
Song Yunke,
Fujita Takeshi,
Zhang Ye,
Chen Mingwei,
Wang TzaHuei
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201304503
Subject(s) - materials science , nanoporous , quantum dot , fluorescence , nanopore , nanotechnology , plasmon , substrate (aquarium) , excitation , colloidal gold , optoelectronics , nanoparticle , optics , physics , oceanography , quantum mechanics , geology
Dealloyed nanoporous gold (NPG) dramatically enhances quantum dot (QD) fluorescence by amplifying near‐field excitation and increasing the radiative decay rate. Originating from plasmonic coupling, the fluorescence enhancement is highly dependent upon the nanopore size of the NPG. In contrast to other nanoengineered metallic structures, NPG exhibits fluorescence enhancement of QDs over a large substrate surface.