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Chenming Xue, Yuhua Xue, Liming Dai, Augustine Urbas and Quan Li Size- and Shape-Dependent Fluorescence Quenching of Gold Nanoparticles on Perylene Dye Advanced Optical Materials 1

Article first published online: 27 JUN 2013 | DOI: 10.1002/adom.201300175

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Gold nanoparticles of different shapes and sizes are homogenously mixed with strong fluorescent perylene dye molecules in both solution and solid states, where the strong perylene fluorescence is quenched. When the smallest spherical gold nanoparticles are dropped on the perylene soaked paper followed by drying and sealing in a polydimethylsiloxane film, that area shows a black spot under UV light but appears visually identical to the surrounding area under daylight.

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