The adsorption and charge transfer dynamics of bi-isonicotinic acid on Au(111)

Taylor, John B. (författare)

Mayor, Louise C. (författare)

Swarbrick, Janine C. (författare)

O'Shea, James N. (författare)

Isvoranu, Cristina (författare): Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Schnadt, Joachim (författare): Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

(creator_code:org_t)

AIP Publishing, 2007
2007
Engelska.
Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 127:13

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Abstract Ämnesord

Stäng

The interaction of bi-isonicotinic acid (4,4[prime]-dicarboxy-2,2[prime]-bipyridine) with the Au(111) surface has been investigated using electron spectroscopic techniques. Near edge x-ray absorption fine structure (NEXAFS) spectra show that monolayers of the molecule lie flat to the surface and also reveal that the monolayer is sensitive to the preparation conditions employed. Core level x-ray photoelectron spectroscopy (XPS) shows that the adsorbed molecule does not undergo deprotonation upon adsorption. The “core-hole clock” implementation of resonant photoemission has been used to probe the coupling between molecule and substrate. This technique has revealed the possibility of ultrafast backtransfer from the substrate into the molecule upon resonant excitation of a N 1s core level electron. This is supported by a NEXAFS and XPS investigation of energy level alignments in the system. ©2007 American Institute of Physics

Av författaren/redakt...: Taylor, John B.; Mayor, Louise C.; Swarbrick, Janin ...; O'Shea, James N.; Isvoranu, Cristi ...; Schnadt, Joachim

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