WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan; Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, 21218, USA.
Adv Mater. 2014 Feb 26;26(8):1289-94. doi: 10.1002/adma.201304503. Epub 2013 Dec 12.
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.
脱合金纳米多孔金（NPG）通过放大近场激发和增加辐射衰减率，显著增强量子点（QD）的荧光。这种荧光增强源于等离子体耦合，高度依赖于 NPG 的纳米孔尺寸。与其他纳米工程金属结构相比，NPG 在较大的基底表面上表现出对 QD 的荧光增强。
