Theoretical characterization of titanyl phthalocyanine as a p-type organic semiconductor: Short intermolecular π-π interactions yield large electronic couplings and hole transport bandwidthsReportar como inadecuado


Theoretical characterization of titanyl phthalocyanine as a p-type organic semiconductor: Short intermolecular π-π interactions yield large electronic couplings and hole transport bandwidths


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The charge-transport properties of the triclinic phase II crystal of titanyl phthalocyanine α-TiOPc are explored within both a hopping and bandlike regime. Electronic coupling elements in convex- and concave-type dimers are calculated using density functional theory, and the relationship between molecular structure and crystal packing structure in model dimer configurations is considered. Hole transport bandwidths derived from crystal structure dimers are compared to those obtained from electronic band structure calculations; very good agreement between the two approaches is found. The calculations predict large hole bandwidths, on the order of 0.4 eV, and correspondingly very low hole reorganization energies.



COPE Publications -



Autor: Norton, Joseph E. - Brédas, Jean-Luc - -

Fuente: https://smartech.gatech.edu/







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