Can lattice models predict the density of states of amorphous organic semiconductors?

F. May, B. Baumeier, C. Lennartz, D. Andrienko

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

45 Citaten (Scopus)

Samenvatting

We extend existing lattice models of small-molecule amorphous semiconductors by accounting for changes in molecular polarizability upon charging or excitation. A compact expression of this contribution to the density of states is provided. Although the lattice model and the description based on a microscopic morphology both qualitatively predict an additional broadening, shift, and an exponential tail (traps) of the density of states, a quantitative agreement between the two cannot be achieved.

Originele taal-2Engels
Artikelnummer136401
TijdschriftPhysical Review Letters
Volume109
Nummer van het tijdschrift13
DOI's
StatusGepubliceerd - 25 sep 2012
Extern gepubliceerdJa

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