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Strong quantum-confinement effects in the conduction band of germanium nanocrystals

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7 Author(s)
Bostedt, C. ; Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, California 94550Institut für Experimentalphysik, Universität Hamburg, Germany ; van Buuren, T. ; Willey, T.M. ; Franco, N.
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Quantum-confinement effects in the conduction band of deposited germanium nanocrystals are measured to be greater than in similar-sized silicon nanocrystals. The germanium particles are condensed out of the gas phase and their electronic properties are determined with x-ray absorption spectroscopy. The conduction band edge shifts range from 0.2 eV for 2.7 nm particles up to 1.1 eV for 1.2 nm particles. © 2004 American Institute of Physics.

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Applied Physics Letters  (Volume:84 ,  Issue: 20 )