Triplet excitons: improving exciton diffusion length for enhanced organic photovoltaics
| Autor: | Eric Rivard, Manisha Gupta, Karthik Shankar, Darren Majak, Bruno T. Luppi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Organic solar cell Renewable Energy Sustainability and the Environment Exciton Doping Energy conversion efficiency 02 engineering and technology General Chemistry Limiting 021001 nanoscience & nanotechnology 7. Clean energy Intersystem crossing Chemical physics General Materials Science Diffusion (business) 0210 nano-technology |
| Zdroj: | Journal of Materials Chemistry A. 7:2445-2463 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c8ta10037c |
| Popis: | A short exciton diffusion length (LD) is one of the main factors limiting the final power conversion efficiency (PCE) of organic photovoltaics (OPV). Aiming at overcoming this barrier, there have been studies on the use of longer-lived triplet excitons, which can be introduced either through triplet sensitization by doping or through the use of donor materials containing heavy atoms that allow for intersystem crossing (ISC). This review focuses on how these systems have been shown to increase LD, leading to increased PCEs, and discusses challenges associated with the use of triplet materials. |
| Databáze: | OpenAIRE |
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