https://doi.org/10.1140/epjd/e2003-00165-x
Surface-enhanced luminescence from Eu3+ complex nearby Ag colloids
Department of Chemical Science and Engineering,
Faculty of Engineering, Graduate School of Science and Technology,
Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
Corresponding author: a deki@kobe-u.ac.jp
Received:
10
September
2002
Published online:
3
July
2003
The effect of colloidal dispersion of silver
on the luminescent properties of Eu (III) complex with
pyridine-3,5-dicarboxylic acid (PyDC) was investigated. The
luminescence from Förster type europium complex was enhanced
several times with the presence of Ag colloid and the enhancement
factor showed Ag concentration dependence. The observed
enhancement effect was discussed in view of surface-enhancement
effect and optical absorption due to surface plasmon resonance,
both arising from excitation of surface plasmon polariton. The
coordination structure around Eu (III) ion was also affected with
the presence of Ag colloid, which induced the change in the
intensity ratio between two emission bands of
and
transitions of Eu (III) ion.
PACS: 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals / 81.07.Pr – Organic-inorganic hybrid nanostructures / 78.55.-m – Photoluminescence, properties and materials
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
