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Article Dans Une Revue Physical Review Letters Année : 2011

Band Dispersion and Electronic Lifetimes in Crystalline Organic Semiconductors

Simone Fratini
S. Ciuchi
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Résumé

The consequences of several microscopic interactions on the photoemission spectra of crystalline organic semiconductors are studied theoretically. It is argued that their relative roles can be disentangled by analyzing both their temperature and their momentum-energy dependence. Our analysis shows that the polaronic thermal band narrowing, which is the foundation of most theories of electrical transport in organic semiconductors, is inconsistent in the range of microscopic parameters appropriate for these materials. An alternative scenario is proposed to explain the experimental trends.
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Dates et versions

hal-00704575 , version 1 (05-06-2012)

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Simone Fratini, S. Ciuchi. Band Dispersion and Electronic Lifetimes in Crystalline Organic Semiconductors. Physical Review Letters, 2011, 106 (106), pp.166403. ⟨10.1103/PhysRevLett.106.166403⟩. ⟨hal-00704575⟩

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