Quantitative Singlet Fission in Solution-Processable Dithienohexatrienes
Kealan J. Fallon, Nipun Sawhney, Daniel T. W. Toolan, Ashish Sharma, Weixuan Zeng, Stephanie Montanaro, Anastasia Leventis, Simon Dowland, Oliver Millington, Daniel G. Congrave, Andrew D. Bond, Richard H. Friend, Akshay Rao, Hugo Bronstein
Abstract
) 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.
Topics & Concepts
Singlet fissionChemistrySinglet statePhotovoltaicsPolyeneThermalisationSiliconFissionChemical physicsExcitonPhotochemistryNanotechnologyExcited stateTriplet stateAtomic physicsNuclear physicsMoleculePhotovoltaic systemMaterials scienceOrganic chemistryCondensed matter physicsPhysicsEcologyBiologyNeutronPerovskite Materials and Applicationssolar cell performance optimizationQuantum Dots Synthesis And Properties