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Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
Published on: March 2, 2016
Large enhancement of quantum dot fluorescence by highly scalable nanoporous gold
Ling Zhang1, Yunke Song, Takeshi Fujita
1WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan; Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, 21218, USA.
Abstract:
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.

