Author/Authors :
Watkins، نويسنده , , N.J. and Zangmeister، نويسنده , , C.D. and Chan، نويسنده , , C.K. and Zhao، نويسنده , , W. and Ciszek، نويسنده , , J.W. and Tour، نويسنده , , J.M. and Kahn، نويسنده , , A. and van Zee، نويسنده , , R.D.، نويسنده ,
Abstract :
Ultraviolet photoemission spectroscopy, inverse photoemission spectroscopy, and two-photon photoemission spectroscopy are techniques commonly used to examine the electronic structure of surfaces and interfaces. We have used all three to study self-assembled monolayers of 4,4′-bis(phenylethynyl)benzenethiol on gold, a system often studied for potential application in molecular electronic junctions. We compare the results of these measurements and discuss them in relation to electronic structure calculations. The result is a better understanding of the valence electronic structure for this system, of the spectroscopic methods involved, and of previous measurements.
