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Single-molecule surface-enhanced Raman spectroscopy from a molecularly-bridged silver nanoparticle dimer
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SYSNO ASEP 0306775 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Single-molecule surface-enhanced Raman spectroscopy from a molecularly-bridged silver nanoparticle dimer Title Povrchem zesílená Ramanova spektroskopie na úrovni jedné molekuly z jednoho stříbrného dimeru nanočástic spojených molekulovým můstkem Author(s) Vlčková, B. (CZ)
Moskovits, M. (US)
Pavel, I. (US)
Šišková, Karolína (UMCH-V)
Sládková, M. (CZ)
Šlouf, Miroslav (UMCH-V) RID, ORCIDSource Title Chemical Physics Letters. - : Elsevier - ISSN 0009-2614
Roč. 455, 4-6 (2008), s. 131-134Number of pages 4 s. Language eng - English Country NL - Netherlands Keywords SM-SERS ; nanoparticle dimer ; silver nanoparticles Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA203/07/0717 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) DOI 10.1016/j.cplett.2008.02.078 Annotation Silver nanoparticle dimers were produced and immobilized on a functionalized TEM finder grid, by sequential assembly using bifunctional molecular linker 4,4'-diaminoazobenzene. SERS spectra recorded were ascribed to the specific dimer by TEM-imaging. Temporal fluctuations (blinking) of SERS signal demonstrate observation of single-molecule Raman. Observed recurrence times are consistent with known surface diffusion constants, suggesting that single molecule dynamics causing the blinking might arise from breaking of linker bond to one of the nanoparticles, linker diffusion over the other nanoparticle and return to the hot spot. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2008
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