Efficiency of Exciton and Charge Carrier Photogeneration in a Semiconducting Polymer

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Efficiency of Exciton and Charge Carrier Photogeneration in a Semiconducting Polymer

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dc.contributor.author Hendry, Euan en_GB
dc.contributor.author Schins, Juleon M. en_GB
dc.contributor.author Candeias, L. P. en_GB
dc.contributor.author Siebbeles, L. D. A. en_GB
dc.contributor.author Bonn, Mischa en_GB
dc.contributor.department University of Exeter (at the time of publication Euan Hendry was affiliated to Leiden University); Leiden University; Delft University of Technology; FOM Institute for Atomic and Molecular Physics, Amsterdam en_GB
dc.date.accessioned 2008-07-25T10:54:35Z en_GB
dc.date.accessioned 2011-01-25T11:55:03Z en_US
dc.date.accessioned 2013-03-20T13:24:04Z
dc.date.issued 2004 en_GB
dc.description.abstract We determine the efficiencies for the formation of excitons and charge carriers following ultrafast photoexcitation of a semiconducting polymer (MEH-PPV). The simultaneous, quantitative determination of exciton and charge photoyields is achieved through subpicosecond studies of both the real and the imaginary components of the complex conductivity over a wide frequency range. Predominantly excitons, with near-unity quantum efficiency, are generated on excitation, while only a very small fraction (<10-2) of free charges are initially excited, consistent with rapid (∼100  fs) hot exciton dissociation. These initial charges are very short lived, decaying on subpicosecond time scales. en_GB
dc.identifier.citation 92 (19), article 196601 en_GB
dc.identifier.doi 10.1103/PhysRevLett.92.196601 en_GB
dc.identifier.uri http://hdl.handle.net/10036/33212 en_GB
dc.language.iso en en_GB
dc.publisher American Physical Society en_GB
dc.relation.url http://dx.doi.org/10.1103/PhysRevLett.92.196601 en_GB
dc.relation.url http://link.aps.org/abstract/PRL/v92/e196601 en_GB
dc.title Efficiency of Exciton and Charge Carrier Photogeneration in a Semiconducting Polymer en_GB
dc.type Article en_GB
dc.date.available 2008-07-25T10:54:35Z en_GB
dc.date.available 2011-01-25T11:55:03Z en_US
dc.date.available 2013-03-20T13:24:04Z
dc.identifier.issn 0031-9007 en_GB
dc.identifier.issn 1079-7114 en_GB
dc.description Euan Hendry, Juleon M. Schins, L. P. Candeias, L. D. A. Siebbeles, and Mischa Bonn, Physical Review Letters, Vol. 92, article 196601 (2004). "Copyright © 2004 by the American Physical Society." en_GB
dc.identifier.journal Physical Review Letters en_GB


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