Steady-state and time-resolved luminescence of Ru(II) polypyridine complexes attached to Ag nanoparticles: Effect of chemisorption in comparison with electrostatic bonding
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10295354" target="_blank" >RIV/00216208:11310/15:10295354 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.saa.2015.05.088" target="_blank" >http://dx.doi.org/10.1016/j.saa.2015.05.088</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.saa.2015.05.088" target="_blank" >10.1016/j.saa.2015.05.088</a>
Alternative languages
Result language
angličtina
Original language name
Steady-state and time-resolved luminescence of Ru(II) polypyridine complexes attached to Ag nanoparticles: Effect of chemisorption in comparison with electrostatic bonding
Original language description
Steady state and nanosecond time resolved luminescence (namely, 3MLCT phosphorescence) of [Ru(bpy)3]2+ and of [Ru(bpy)2(dcbpy)]2+/bpy = 2,20-bipyridine; dcbpy = 2,20-bipyridyl-4,40-dicarboxylic acid/attached to Ag NPs (the former by the electrostatic bonding, the latter by chemisorption) in non-aggregated Ag NP hydrosol systems has been investigated, and compared to the luminescence characteristics of the complexes in aqueous solutions. The intensity decrease of the 452 nm (and/or 455 nm, respectively)main band and elimination of the short wavelength shoulders in the excitation spectra and the intensity decrease of the emission spectra observed for both complexes upon their attachment to Ag NPs is attributed to the overlap of the excitation spectra with the surface plasmon extinction (SPE) of Ag NPs. The overlap leads to a loss of excitation energy by SPE as well as to a decrease of the 1MLCT to 3MLCT intersystem crossing efficiency. The time-resolved luminescence study shows that the
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP208%2F10%2F0941" target="_blank" >GAP208/10/0941: Engineering of surface-modified optical processes in molecules and semiconductor quantum dots by plasmon resonances in metal nanoparticle assemblies.</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
ISSN
1386-1425
e-ISSN
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Volume of the periodical
150
Issue of the periodical within the volume
2015
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
657-663
UT code for WoS article
000361774900075
EID of the result in the Scopus database
2-s2.0-84935925437