Identification of two Ag-2,2':6',2"-terpyridine surface species on Ag nanoparticle surfaces by excitation wavelength dependence of SERS spectra and factor analysis: evidence for chemical mechanism contribution to SERS of Ag(0)-tpy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10284584" target="_blank" >RIV/00216208:11310/15:10284584 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/15:10284584
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1002/jrs.4585/pdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/jrs.4585/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/jrs.4585" target="_blank" >10.1002/jrs.4585</a>

Result language
angličtina
Original language name
Identification of two Ag-2,2':6',2"-terpyridine surface species on Ag nanoparticle surfaces by excitation wavelength dependence of SERS spectra and factor analysis: evidence for chemical mechanism contribution to SERS of Ag(0)-tpy
Original language description
Measurement and interpretation of the excitation wavelength dependence of surface-enhanced Raman scattering (SERS) spectra of molecules chemisorbed on plasmonic, e.g. Ag nanoparticle (NP) surfaces, are of principal importance for revealing the charge transfer (CT) mechanism contribution to the overall SERS enhancement. SERS spectra, their excitation wavelength dependence in the 445-780-nm range and factor analysis (FA) were used for the identification of two Ag-2,2':6',2"-terpyridine (tpy) surface species, denoted Ag+-tpy and Ag(0)-tpy, on Ag NPs in systems with unmodified and/or purposefully modified Ag NPs originating from hydroxylamine hydrochloride-reduced hydrosols. Ag+-tpy is a spectral analogue of [Ag(tpy)]+ complex cation, and its SERS shows virtually no excitation wavelength dependence. By contrast, SERS of Ag(0)-tpy surface complex generated upon chlorideinduced compact aggregate formation and/or in strongly reducing ambient shows a pronounced excitation wavelength dependence
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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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
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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