Transient absorption spectroscopy of charge photogeneration yields and lifetimes in a low bandgap polymer/fullerene film.
Charge photogeneration yields and energetics are determined for a low band gap co-polymer, PCPDTBT blended with PC(70)BM; the increase in charge photogeneration with dithiol is correlated with an increase in the free energy of charge separation.
Clarke
Tracey
T
Department of Chemistry and Physics, Imperial College London, London, UKSW7 2AZ. tracey.clarke@imperial.ac.uk
Ballantyne
Amy
A
Jamieson
Fiona
F
Brabec
Christoph
C
Nelson
Jenny
J
Durrant
James
J