On the efficiency of charge transfer state splitting in polymer:fullerene solar cells
Steve Albrecht1, Koen Vandewal, John R Tumbleston
1Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany.
Advanced Materials (Deerfield Beach, Fla.)
|February 28, 2014
Abstract:
The field dependence and yield of free charge carrier generation in polymer:fullerene blends with varying energetic offsets is not affected when the excitation energy is varied from above band-gap to direct CT state excitation. Instead, the ability of the CT state to split is dictated by the energetic offset between the relaxed CT state and the charge separated (CS) state.
Keywords:
charge generationcharge transfer statesdriving forceexcess energygeminate recombinationmorphologyorganic solar cellsspectroelectrochemistryMore Related Videos
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