Singlet Fission in Crystalline Organic Materials
Recent Insights and Future Directions
K.M. Felter (TU Delft - ChemE/Opto-electronic Materials)
F. C. Grozema (TU Delft - ChemE/Opto-electronic Materials)
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Abstract
Singlet fission (SF) involves the conversion of one excited singlet state into two lower excited triplet states and has received considerable renewed attention over the past decade. This Perspective highlights recent developments and emerging concepts of SF in solid-state crystalline materials. Recent experiments showed the crucial role of vibrational modes in speeding up SF, and theoretical modeling has started to define an optimal energetic landscape and intermolecular orientation of chromophores for highly efficient singlet fission. A critical analysis of these developments leads to directions for future research to eventually find singlet fission chromophores with excellent optoelectronic properties.
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