Bright and color-stable QLEDs based on top-emission structure

Speaker: Taesoo Lee, Ph.D., Seoul National University

Time: 16:30, April 3 

Venue: Room C210, No. 8 Hainayuan Building, Zijingang Campus 

Abstract: Quantum dot light-emitting diodes (QLEDs) have gamered significant altention as a promising candidate for display technologles, owing to the superior optical properties of colloldal quantum dots (QDs) Multi+lateral efforts have been devoted to improving the performance of QLEDs, ranging from advanced synthesis of QDs to elaborate architectural modifications. Along with these efforts, studies on outcoupling control are needed for QLEDs to be implemented to various next generation optoelectronics, such as wearable devices and augmented realily/virtual realily displays. In this regard, top-emission structure is an attractive device architecture that can successfully address this issue. In this presentation, l introduce elaborate optimizations of top-emission structure, realizing record-high current efficiencies and extremely high luminance. In additlion, control of angular emission profiles of top-emitting OLEDs is introduced to emit angle-independent light emission. l believe that this research can give better insights about realizing high-power and color-stable QLEDs, expanding their potential applications to various industries.

Biography: Taesoo Lee received his Ph.D. from Seoul National University (SNU). His research interest includes improving the performance and investigating the driving mechanisms of various optoelectronic devices, such as quantum dot light-emitting diodes (QLEDs), perovskite LEDs, and organic LEDs.