Switching of the fluorescence emission of single molecules between the locally excited and charge transfer states

A novel perylene imide and oligo-pentaphenyl bisfluorene containing molecule is shown to undergo electron transfer to form an emissive charge transfer state in di-benzyl ether and THF. At the single molecule level in a PMMA film, fluorescence spectra characteristic of both emissive states (locally e...

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Bibliographic Details
Published in:Chemical physics letters 2005-01, Vol.401 (4), p.503-508
Main Authors: Angeles Izquierdo, M., Bell, Toby D.M., Habuchi, Satoshi, Fron, Eduard, Pilot, Roberto, Vosch, Tom, De Feyter, Steven, Verhoeven, Jan, Jacob, Josemon, Müllen, Klaus, Hofkens, Johan, De Schryver, Frans C.
Format: Article
Language:English
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Summary:A novel perylene imide and oligo-pentaphenyl bisfluorene containing molecule is shown to undergo electron transfer to form an emissive charge transfer state in di-benzyl ether and THF. At the single molecule level in a PMMA film, fluorescence spectra characteristic of both emissive states (locally excited and charge transfer) are observed with 44% of the molecules studied showing switching between the two states. These results demonstrate that charge transfer fluorescence from single molecules can be used to report on the properties and dynamics of a molecule’s immediate surroundings or nano-environment.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2004.09.156