Reference : Total internal reflection sum-frequency generation spectroscopy and dense gold nanoparti...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/26602
Total internal reflection sum-frequency generation spectroscopy and dense gold nanoparticles monolayer: a route for probing adsorbed molecules
English
Tourillon, Gérard [ > > ]
Dreesen, Laurent mailto [Université de Liège - ULg > Département de physique > Biophotonique >]
Volcke, Cédric [ > > ]
Sartenaer, Yannick [ > > ]
Thiry, Paul A. [ > > ]
Peremans, André [ > > ]
2007
Nanotechnology
Institute of Physics
18
7 pp
Yes (verified by ORBi)
International
0957-4484
1361-6528
[en] We show that sum-frequency generation spectroscopy performed in the total internal reflection configuration (TIR–SFG) combined with a dense gold nanoparticles monolayer allows us to study, with an excellent signal to noise ratio and high signal to background ratio, the conformation of adsorbed molecules. Dodecanethiol (DDT) was used as probe molecules in order to assess the potentialities of the approach. An enhancement of more than one order of magnitude of the SFG signals arising from the adsorbed species is observed with the TIR geometry compared to the external reflection one while the SFG non-resonant contribution remains the same for both
configurations. Although further work is required to fully understand the origin of the SFG process on nanoparticles, our work opens new possibilities for studying nanostructures.
Researchers ; Professionals
http://hdl.handle.net/2268/26602

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
nanotechnology_2007_N18-Tourillon.pdfPublisher postprint948.53 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.