The impact of molecular polarization on the electronic properties of molecular semiconductorsM. N. Bussac1, 2, J. D. Picon1 and L. Zuppiroli1
1 Laboratoire d'Optoélectronique des Matériaux Moléculaires, Institut des matériaux École Polytechnique Fédérale de Lausanne - 1015 Lausanne, Switzerland
2 Centre de Physique Théorique, École polytechnique - 91128 Palaiseau Cedex, France
(Received 21 October 2003; accepted in final form 26 February 2004)
In a molecular semiconductor, the carrier is dressed with a polarization cloud that we treat as a quantum field of Frenkel excitons coupled to it. The consequences of the existence of this electronic polaron on the dynamics of an extra charge in a material like pentacene can thus be evaluated.
72.80.Le - Polymers; organic compounds (including organic semiconductors).
71.23.An - Theories and models; localized states.
33.15.Kr - Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility.
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