Environmental Control of Triplet Emission in Donor–Bridge–Acceptor Organometallics

@article{Feng2019EnvironmentalCO,
  title={Environmental Control of Triplet Emission in Donor–Bridge–Acceptor Organometallics},
  author={Jiale Feng and Lupeng Yang and Alexander S. Romanov and Jirawit Ratanapreechachai and Antti‐Pekka M. Reponen and Saul T. E. Jones and Mikko Linnolahti and Timothy J. H. Hele and Anna K{\"o}hler and Heinz B{\"a}ssler and Manfred Bochmann and Dan Credgington},
  journal={Advanced Functional Materials},
  year={2019},
  volume={30}
}
Carbene‐metal‐amides (CMAs) are a promising family of donor–bridge–acceptor molecular charge‐transfer (CT) emitters for organic light‐emitting diodes. A universal approach is demonstrated to tune the energy of their CT emission. A blueshift of up to 210 meV is achievable in solid state via dilution in a polar host matrix. The origin of this shift has two components: constraint of thermally‐activated triplet diffusion, and electrostatic interactions between guest and polar host. This allows the… 
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