Speaker
Description
For last 10 years, the performance of colloidal quantum dot-light-emitting diodes (QLEDs) has been dramatically improved. However, most of QLED work has been fulfilled in the form of monochromatic device, while white QLED still remains a long way to go. After solution-processed deposition of hole transport layer and emitting layer based on colloidal quantum dots, electron transport layer and emitting layer based on organic host-dopant system were deposited using thermal evaporation. The generation of white light was accomplished by the sequential structure of red emitting QLEDs and blue emitting OLEDs. , The unique hybrid electroluminescent devices generated a high-quality white light with a high color rendering index (CRI). The detailed I-V-L characteristics were studied to get efficient and high CRI white emission.
