Directly search for the keyword "physics of organic semiconductors" pdf on in the Condensed Matter (cond-mat) section. Many authors upload pre-prints. On ResearchGate, authors will personally email you a PDF upon request.
When a charge (electron or hole) moves through an organic molecule, it slightly deforms the molecular structure. This combination of a charge and its induced lattice distortion is called a polaron . 3. Optical Physics and Excitons physics of organic semiconductors pdf