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Separation of Time‐Resolved Phenomena in Surface‐Enhanced Raman Scattering of the Photocatalytic Reduction of p ‐Nitrothiophenol
Author(s) -
van Schrojenstein Lantman E. M.,
de Peinder P.,
Mank A. J. G.,
Weckhuysen B. M.
Publication year - 2015
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201500027
Subject(s) - monolayer , photocatalysis , nanoparticle , raman scattering , plasmon , raman spectroscopy , materials science , excited state , surface enhanced raman spectroscopy , substrate (aquarium) , nanotechnology , photochemistry , spectroscopy , excitation , plasmonic nanoparticles , chemistry , optoelectronics , catalysis , optics , physics , atomic physics , organic chemistry , oceanography , quantum mechanics , geology
The front cover artwork is provided by Prof. Bert Weckhuysen (Utrecht University, The Netherlands). The image outlines the experimental approach taken. Single Ag nanoparticles (grey) are deposited on a self‐assembled monolayer of p ‐nitrothiophenol (pNTP, red) assembled on a flat Au substrate (yellow). The monolayer of pNTP can be reduced to p,p’‐dimercaptoazobisbenzene (DMAB) through photocatalysis over plasmonic nanoparticles. By using a laser excitation of 785 nm (yellow arrow) the coupled plasmons of Au and Ag are excited and give sufficient surface enhanced Raman spectroscopy (SERS) enhancement effect to observe dynamics and kinetics over single nanoparticle hotspots. Read the full text of the article at 10.1002/cphc.201402709 .