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Monolayer Contact Doping of Silicon Surfaces and Nanowires Using Organophosphorus Compounds
Published on: December 2, 2013
Communication: Highest occupied molecular orbital-lowest unoccupied molecular orbital gaps of doped silicon clusters
J T Lau1, M Vogel, A Langenberg
1Institut für Methoden und Instrumentierung der Synchrotronstrahlung, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, G-I2, Albert-Einstein-Straße 15, 12489 Berlin, Germany. tobias.lau@helmholtz-berlin.de
Abstract:
A method to determine band gaps of size-selected and isolated nanoparticles by combination of valence band and core-level photoionization spectroscopy is presented. This approach is widely applicable and provides a convenient alternative to current standard techniques for the determination of band gaps by optical or photoelectron spectroscopy. A first application to vanadium doped silicon clusters confirms a striking size-dependence of their highest occupied-lowest unoccupied molecular orbital gaps.
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