Vibronic spectroscopy of single C 60 molecules and monolayers with the STM

Nilay A. Pradhan, Ning Liu, Wilson Ho

Research output: Contribution to journalArticlepeer-review

Abstract

A scanning tunneling microscope is used to study the differential conductance (dI/dV) of single C 60 molecules in isolation and in monolayers adsorbed on NiAl(110) and on an ultrathin alumina film grown on the NiAl-(110) surface. On the oxide layer, the electronic bands in the dI/dV spectra display a series of equally spaced features, attributed to the vibronic states of the molecules, which are absent when the molecules are adsorbed on the metal. A comparison between the molecular spectra measured on the oxide film reveals the effect of adsorption temperature and geometry, as well as intermolecular interactions on the vibronic features.

Original languageEnglish
Pages (from-to)8513-8518
Number of pages6
JournalJournal of Physical Chemistry B
Volume109
Issue number17
DOIs
Publication statusPublished - 5 May 2005
Externally publishedYes

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