Photoinduced transient stark spectroscopy in organic semiconductors: a method for charge mobility determination in the picosecond regime.

Cabanillas-Gonzalez, J; Virgili, T; Gambetta, A; Lanzani, G; Anthopoulos, T D; de Leeuw, D M

Cabanillas-Gonzalez, J; Virgili, T; Gambetta, A; Lanzani, G; Anthopoulos, T D; de Leeuw, D M.

Afiliación

Cabanillas-Gonzalez J; IFN-CNR, Dipartimento di Fisica, ULTRAS-INFM-CNR, Politecnico di Milano, Milano 20133, Milan, Italy.

Phys Rev Lett ; 96(10): 106601, 2006 Mar 17.

Article en En | MEDLINE | ID: mdl-16605770

RESUMEN

Subpicosecond photoinduced Stark spectroscopy experiments are carried out for measuring charge carrier mobility in organic semiconductors. The technique is demonstrated in state-of-art devices based on methanofullerene. The transient mobility of photogenerated charge carriers is measured in the picosecond time domain. Electric field dependent mobility is observed from the earliest time scales. In addition, two distinct transport regimes are revealed: a short-lived state, approximately 10 ps, of high mobility and a transient towards the trap limited transport, associated with the mesoscopic structure of the medium.

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2006 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos

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