One idea is to incorporate the QDs into the device as a second emission layer. This was first realized with red QDs. In a further step, a white hybrid device could be realized by integrating blue QDs into the LEC architecture.
LED Professional Science Award, 2017
Likewise, for the first time, Cd-free QDs could be integrated into a LEC environment and operated as the only lighting component. This completely eliminates the need for the iTMC. Nevertheless, the layer thickness tolerance capability of the LEC can be maintained (free substrate selection) and at the same time the emission color can be adapted relatively easily to the requirements.
An overview of all QD-integrated LECs can be found here: