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Diffusion-enhanced exciton dissociation in single-material organic solar cells
- Source :
- Physical Chemistry Chemical Physics, 23(37), 20848-20853. ROYAL SOC CHEMISTRY, Physical Chemistry Chemical Physics
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Abstract
- Single-material organic solar cells have recently attracted research attention due to their simplicity, morphological robustness and high yield of exciton dissociation. Using alpha-sexithiophene as a model system, we show that the single-event probability of the exciton dissociation at the boundaries of polycrystalline domains with different molecular orientation is extremely low (similar to 0.5%), while a high efficiency of charge generation is gained via hundred-fold crossings of the domain boundaries due to the long exciton diffusion length (similar to 45 nm). European UnionEuropean Commission [722651]
- Subjects :
- Materials science
Organic solar cell
Exciton dissociation
Exciton
General Physics and Astronomy
Model system
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
7. Clean energy
0104 chemical sciences
Charge generation
Chemical physics
Yield (chemistry)
Crystallite
Physical and Theoretical Chemistry
Diffusion (business)
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 14639084 and 14639076
- Volume :
- 23
- Issue :
- 37
- Database :
- OpenAIRE
- Journal :
- Physical Chemistry Chemical Physics
- Accession number :
- edsair.doi.dedup.....6a11d1d4deb1c8a8424d0f67e100ef9c
- Full Text :
- https://doi.org/10.1039/d1cp03328j