Charge-separation and exciton-migration processes in organic semiconductors: A molecular viewpoint

PMSE 23

Jean-Luc Brédas, jean-luc.bredas@chemistry.gatech.edu, School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, 901 Atlantic Drive N.W, Atlanta, GA 30332-0400
Conjugated organic oligomer and polymer materials are being increasingly considered for incorporation as the active semiconductor elements in devices such as photo-voltaic cells, light-emitting diodes, or field-effects transistors. In the operation of these devices, electron-transfer and energy-transfer processes play a key role, for instance in the form of charge transport, energy transport, charge separation, or charge recombination. Here, we focus on a theoretical description of charge-separation phenomena based on electron-transfer theory, which allows us to provide a molecular, chemically-oriented understanding.