Probing charge transport in pi-stacked fluorene-based systems.
The molecular parameters governing charge transport along a pi-stacked fluorene chain in poly(dibenzofulvene) are studied by a joint experimental and theoretical approach involving high-resolution gas-phase photoelectron spectroscopy and quantum-mechanical methods. We specifically investigate the electronic couplings between fluorene moieties as well as the intramolecular reorganization energies, for both holes and electrons. Our results indicate that a pi-stacked fluorene chain favors hole transport over electron transport. The values for electronic couplings and reorganization energies estimated here are compared with those derived recently for pentacene.
Coropceanu
Veaceslav
V
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA. veaceslav.coropceanu@chemistry.gatech.edu
Nakano
Tamaki
T
Gruhn
Nadine E
NE
Kwon
Ohyun
O
Yade
Tohru
T
Katsukawa
Ken-ichi
K
Brédas
Jean-Luc
JL