Transport Properties in the Rubrene Crystal: Electronic Coupling and Vibrational Reorganization Energy


  • This work has been partly supported by the National Science Foundation (through the STC Program under Award DMR-0120967, the MRSEC Program under Award DMR-0212302, and Grant CHE-0342321) and the Office of Naval Research. The authors acknowledge stimulating discussions with V. Coropceanu and J. Cornil.


original image

Rubrene has recently attracted much attention in the field of organic semiconductors because of its very high mobilities at room temperature. These observations are a priori surprising, since the tetraphenyl substitution of the tetracene backbone (see Figure) is expected to lead to weak intermolecular interactions and, as a result, low carrier mobilities. This theoretical work provides a clear explanation for the origin of the high mobilities.