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Tunneling Electrons Stimulate Individual Molecules

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Using a scanning tunneling microscope, a research team at the University of California, Irvine, has induced photoemission in individual porphyrin molecules on an aluminum oxide film, yielding fluorescence patterns that depend on the molecular conformations. The technique, which was reported in the Jan. 24 issue of Science, may find applications in the study of electron dynamics in conjugated polymers and organic molecules and of the influence of local plasmon modes on intermolecular fluorescence resonance energy transfer. In the experiments, the researchers employed a homebuilt...Read full article

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    Published: March 2003
    aluminum oxide filmindividual porphyrin moleculesMicroscopymolecular conformationsphotoemissionResearch & Technologyscanning tunneling microscopesTech Pulseyielding fluorescence patterns

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