| Quantum dots may be used as tunable fluorophores. In addition, they can be used as the emitters in LEDs. In this case, electrons and holes are injected into the QDs via external applied voltages. The advantage of QDs is that a wider range of emission colours may be achieved. Key issues are the electronic interfacing of QDs with the charge injection layers. The University of Melbourne was granted a patent for a wet-chemical, tunable, QD-LED in 2008. The basic device is described in Mashford et al. JMC (2009). |
