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Title: Resonance energy transfer: Dye to metal nanoparticles

In the present study, surface energy transfer (SET) from Coumarin 540A (C540 A) to Gold nanoparticle (Au) is demonstrated. The observed results show pronounced effect on the photoluminescence intensity and shortening of the lifetime of Coumarin 540A upon interaction with the spherical gold nanoparticle, also there are measured effects on radiative rate of the dye. Experimental results are analyzed with fluorescence resonance energy transfer (FRET) and SET theories. The results obtained from distance-dependent quenching provide experimental evidence that the efficiency curve slope and distance of quenching is best modeled by surface energy transfer process.
Authors:
; ;  [1]
  1. Laser Spectroscopy Programme, Department of Physics, Karnatak University, Dharwad-580003 (India)
Publication Date:
OSTI Identifier:
22490326
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COUMARIN; DYES; EFFICIENCY; ENERGY TRANSFER; FLUORESCENCE; GOLD; LIFETIME; NANOPARTICLES; PHOTOLUMINESCENCE; QUENCHING; RESONANCE; SPHERICAL CONFIGURATION; SURFACE ENERGY