The generation of charge carriers in organic photovoltaic devices requires exciton diffusion to an interface of electron donor and acceptor materials, where charge separation occurs. We report a time resolved study of fluorescence quenching in films of poly(3-hexylthiophene) containing a range of fractions of the electron acceptor [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). We show that energy transfer from P3HT to PCBM helps to bring excitons to the interface, where they dissociate into charge carriers. Fluorescence quenching in blends with ≤50 wt% of PCBM is controlled by exciton diffusion in P3HT. This allows us to estimate the average size of PCBM domains to be about 9 nm in the 1:1 blend. The implications for polymer solar cells...
The photogeneration quantum yield and dynamics of charge carriers and excitons in thin films of neat...
The effect of controlled thermal annealing on charge transport and photogeneration in bulk-heterojun...
The photogeneration quantum yield and dynamics of charge carriers and excitons in thin films of neat...
Light-induced charge formation is essential for the generation of photocurrent in organic solar cell...
The exciton root-mean-square displacement (ΛD) in regioregular poly(3-hexylthiophene) (P3HT) deposit...
PBDTTPD is one of the best conjugated polymers for solar cell applications (up to 8.5% efficiency). ...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
The influence of crystallinity on exciton diffusion and fullerene distribution was investigated by b...
AbstractThe use of high boiling point additives in solution processing has been widely employed to c...
Journal ArticleWe investigate the nature of ultrafast exciton dissociation and carrier generation in...
The influence of crystallinity on exciton diffusion and fullerene distribution was investigated by b...
The influence of crystallinity on exciton diffusion and fullerene distribution was investigated by b...
The photogeneration quantum yield and dynamics of charge carriers and excitons in thin films of neat...
The effect of controlled thermal annealing on charge transport and photogeneration in bulk-heterojun...
The photogeneration quantum yield and dynamics of charge carriers and excitons in thin films of neat...
Light-induced charge formation is essential for the generation of photocurrent in organic solar cell...
The exciton root-mean-square displacement (ΛD) in regioregular poly(3-hexylthiophene) (P3HT) deposit...
PBDTTPD is one of the best conjugated polymers for solar cell applications (up to 8.5% efficiency). ...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
Composites of conjugated poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl-C61...
The influence of crystallinity on exciton diffusion and fullerene distribution was investigated by b...
AbstractThe use of high boiling point additives in solution processing has been widely employed to c...
Journal ArticleWe investigate the nature of ultrafast exciton dissociation and carrier generation in...
The influence of crystallinity on exciton diffusion and fullerene distribution was investigated by b...
The influence of crystallinity on exciton diffusion and fullerene distribution was investigated by b...
The photogeneration quantum yield and dynamics of charge carriers and excitons in thin films of neat...
The effect of controlled thermal annealing on charge transport and photogeneration in bulk-heterojun...
The photogeneration quantum yield and dynamics of charge carriers and excitons in thin films of neat...