Significant metal enhanced fluorescence of Ag2S quantum dots in the second near-infrared window

I. G. Theodorou; Z. A. R. Jawad; H. Qin; E. O. Aboagye; A. E. Porter; M. P. Ryan; F. Xie

doi:10.1039/C6NR03220F

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Significant metal enhanced fluorescence of Ag₂S quantum dots in the second near-infrared window†

I. G. Theodorou,^a Z. A. R. Jawad,^a H. Qin,^a E. O. Aboagye,^b A. E. Porter,^a M. P. Ryan^a and F. Xie*^a

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* Corresponding authors

^a Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
E-mail: f.xie@imperial.ac.uk
Tel: +44 (0)207 594 9693

^b Department of Medicine, Imperial College London, Du Cane Road, London W12 0NN, UK

Abstract

The amplification of light in NIR-II from Ag₂S QDs via metal enhanced fluorescence (MEF) is reported for the first time. Significant fluorescence enhancement of over 100 times for Ag₂S QDs deposited on Au-nanostructured arrays, paves the way for novel sensing and imaging applications based on Ag₂S QDs, with improved detection sensitivity and contrast enhancement.

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Article information

DOI: https://doi.org/10.1039/C6NR03220F
Article type: Communication
Submitted: 20 Apr 2016
Accepted: 04 Jun 2016
First published: 06 Jun 2016

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Nanoscale, 2016,8, 12869-12873

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Significant metal enhanced fluorescence of Ag₂S quantum dots in the second near-infrared window

I. G. Theodorou, Z. A. R. Jawad, H. Qin, E. O. Aboagye, A. E. Porter, M. P. Ryan and F. Xie, Nanoscale, 2016, 8, 12869 DOI: 10.1039/C6NR03220F

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