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.
Original language | English (US) |
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Pages (from-to) | 2533-2539 |
Number of pages | 7 |
Journal | Advanced Materials |
Volume | 26 |
Issue number | 16 |
DOIs | |
State | Published - Apr 23 2014 |
Keywords
- charge generation
- charge transfer states
- driving force
- excess energy
- geminate recombination
- morphology
- organic solar cells
- spectroelectrochemistry
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering