Journal
JOURNAL OF LUMINESCENCE
Volume 177, Issue -, Pages 295-298Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2016.05.007
Keywords
Fluorescence; Local surface plasmon resonant; Gold nanorods; Enhancement; Quenching
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Funding
- National Natural Science Foundation of China [61405085, 61275147]
- Research Fund for the Doctoral Program of Liaocheng University
- Shandong Province Natural Science Foundation of China [ZR2013EML006]
- Research Foundation of Liaocheng University [318011311]
- Shandong province Taishan scholars construction special fund
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The gold nanorods (AuNRs) were precipitated on Eu(dbm)(3)phen doped films by different spin rates. The plasmonic enhancement and quenching effects of gold nanorods on the fluorescence of Eu(dbm)(3)phen were both demonstrated. The enhancement on the fluorescence is sensitive to the distribution of the AuNRs. Both fluorescence enhancement mechanisms, i.e. increase of the intense absorption of ligands and increase of quantum efficiency, promote the 20 fold enhancement, at which the excitation wavelength red-shifts from 362 nm to 372 nm. Higher absorption of ligands in the complex due to the AuNRs caused the bathochromic shift of excitation peak. The quenching factor at 612 nm reached to 0.47. (C) 2016 Elsevier B.V. All rights reserved.
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