Light-emitting diodes based on conjugated polymers

@article{Burroughes1990LightemittingDB,
  title={Light-emitting diodes based on conjugated polymers},
  author={Jeremy H. Burroughes and Donal Donat Conor Bradley and A. Robinson Brown and R. N. Marks and K. Mackay and Richard H. Friend and P. L. Burns and Andrew B. Holmes},
  journal={Nature},
  year={1990},
  volume={347},
  pages={539-541}
}
CONJUGATED polymers are organic semiconductors, the semiconducting behaviour being associated with the π molecular orbitals delocalized along the polymer chain. Their main advantage over non-polymeric organic semiconductors is the possibility of processing the polymer to form useful and robust structures. The response of the system to electronic excitation is nonlinear—the injection of an electron and a hole on the conjugated chain can lead to a self-localized excited state which can then decay… 

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