| Autor: |
Fallon, Kealan J, Sawhney, Nipun, Toolan, Daniel TW, Sharma, Ashish, Zeng, Weixuan, Montanaro, Stephanie, Leventis, Anastasia, Dowland, Simon, Millington, Oliver, Congrave, Daniel, Bond, Andrew, Friend, Richard, Rao, Akshay, Bronstein, Hugo |
| Přispěvatelé: |
Fallon, Kealan J [0000-0001-6241-6034], Toolan, Daniel TW [0000-0003-3228-854X], Zeng, Weixuan [0000-0003-1577-9021], Millington, Oliver [0000-0001-6787-8553], Bond, Andrew [0000-0002-1744-0489], Friend, Richard [0000-0001-6565-6308], Rao, Akshay [0000-0003-4261-0766], Bronstein, Hugo [0000-0003-0293-8775], Apollo - University of Cambridge Repository |
| Rok vydání: |
2022 |
| Předmět: |
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| Popis: |
Singlet fission (SF) is a promising strategy to overcome thermalization losses and enhance the efficiency of single junction photovoltaics (PVs). The development of this field has been strongly material-limited, with a paucity of materials able to undergo SF. Rarer still are examples that can produce excitons of sufficient energy to be coupled to silicon PVs (>1.1 eV). Herein, we examine a series of a short-chain polyene, dithienohexatriene (DTH), with tailored material properties and triplet (T1) energy levels greater than 1.1 eV. We find that these highly soluble materials can be easily spin-cast to create thin films of high crystallinity that exhibit ultrafast singlet fission with near perfect triplet yields of up to 192%. We believe that these materials are the first solution-processable singlet fission materials with quantitative triplet formation and energy levels appropriate for use in conjunction with silicon PVs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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