1 Department of Photonics Engineering, Technical University of Denmark2 Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark3 Department of Physics, Technical University of Denmark4 Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark
We demonstrate light color conversion in patterned InGaN light-emitting diodes (LEDs), which is enhanced via nonradiative exciton resonant energy transfer (RET) from the electrically driven diode to colloidal semiconductor nanocrystals (NCs). Patterning of the diode is essential for the coupling between a quantum well (QW) and NCs, because the distance between the QW and NCs is a main and very critical factor of RET. Moreover, a proper design of the pattern can enhance light extraction.
Proceedings of Spie, the International Society for Optical Engineering, 2013, Vol 8625