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Efficient light harvesting in a photovoltaic diode composed of a semiconductor conjugated copolymer blend

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons47832

Ego,  C.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons47960

Grimsdale,  Andrew C.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48459

Müllen,  Klaus
MPI for Polymer Research, Max Planck Society;

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Zitation

Russell, D. M., Arias, A. C., Friend, R. H., Silva, C., Ego, C., Grimsdale, A. C., et al. (2002). Efficient light harvesting in a photovoltaic diode composed of a semiconductor conjugated copolymer blend. Applied Physics Letters, 80(12), 2204-2206.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-6648-7
Zusammenfassung
We explore charge generation and recombination kinetics quantitatively in a model polymeric semiconductor ternary system. Resonance energy transfer from a polyfluorene copolymer backbone to perylene-substituted side chains selectively excites the dye. In a blend with an alkoxy-substituted poly-p- phenylenevinylene, photoinduced charge transfer is observed. A comparison of picosecond time scale and quasisteady-state charge generation efficiencies allows measurement of the fraction of charges that survive rapid geminate recombination. This simple procedure allows the unraveling of the role played by recombination kinetics in the device. (C) 2002 American Institute of Physics.