Synthesis and photo-induced charge separation of confined conjugation length phenylene vinylene-based polymers
Tina AT Tan, Tracey M Clarke, David James, James R Durrant, Jonathan M White, Kenneth P Ghiggino
POLYMER CHEMISTRY | ROYAL SOC CHEMISTRY | Published : 2013
We report the synthesis and photophysics of four confined chromophore phenylene vinylene (PPV)-based polymers where PPV-type trimer chromophores are linked by alkyl ether chains of increasing length (PT3-PT6). These confined chromophore polymers were blended in a 1: 1 w/w ratio with the fullerene derivative PCBM and the photoinduced charge-separation properties compared to that of a fully conjugated polymer analogue (alt-co-MEH-PPV). Fluorescence from all polymers is quenched in the presence of PCBM and transient absorption measurements confirm the presence of polymer polarons arising from charge transfer from the polymer to the PCBM acceptor. The polaron decay kinetics of all the blend film..View full abstract
We wish to thank the Faculty of Science David Hay Award (to TATT), the UNICHE scheme for scholarship support (to TATT) and the Australian Bicentennial Scholarship, Menzies Foundation, Kings College, London. This project is supported by International Science Linkages established under the Australian Government's innovation statement, Backing Australia's Ability and the EPSRC Supergen and Grand Challenge programmes.