title: Can lattice models predict the density of states of amorphous organic semiconductors?
abstract: 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.
authors.affiliation: Max Planck Institute for Polymer Research, Mainz, Germany.
authors.forename: Falk
authors.initials: F
authors.lastname: May
authors.forename: Björn
authors.initials: B
authors.lastname: Baumeier
authors.forename: Christian
authors.initials: C
authors.lastname: Lennartz
authors.forename: Denis
authors.initials: D
authors.lastname: Andrienko