Universiti Teknologi Malaysia Institutional Repository

Au nanostructures by colloidal lithography: from quenching to extensive fluorescence enhancement

Xie, Fang and Centeno, Anthony and Ryan, Mary and Riley, David Jason and Alford, Neil M. (2013) Au nanostructures by colloidal lithography: from quenching to extensive fluorescence enhancement. Journal of Materials Chemistry B, 1 (4). pp. 536-543. ISSN 2050-7518

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Official URL: http://dx.doi.org/10.1039/c2tb00278g

Abstract

Enhanced local electric fields are created by nanoparticles when pumped at wavelengths corresponding to Localised Surface Plasmon Resonance (LSPR) modes, leading to Metal Induced Fluorescence Enhancement (MIFE). This paper describes the fluorescent enhancement due to reproducible and tuneable Au nanostructures on glass substrates fabricated over large areas by colloidal lithography. Interparticle separation, particle resonance, and the fluorescent dye properties (quantum yield and emission/excitation wavelengths) are all important factors influencing the fluorescent enhancement. A maximum fluorescence enhancement of 69 times from near infra-red (NIR) dye Alexa Fluor® 790 was observed.

Item Type:Article
Uncontrolled Keywords:electric fields, metal nanoparticles, nanostructures, substrates
Subjects:T Technology > T Technology (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:49425
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:02 Dec 2015 02:08
Last Modified:30 Nov 2018 06:55

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