Young Jin Choi

Quantum Dot-Induced Kinetic Bottleneck in Singlet Exciton Relaxation of Conjugated Polymer Aggregates

Abstract We designed hybrid aggregate model systems with cascade energy alignment from conjugated polymers (CPs) to quantum dots (QDs) to investigate the effects of QDs on CP singlet (S1) excitons. Radiative recombination of S1 excitons occurs within 1 ps in the chlorinated CP/QD...

All-InGaN/GaN red light-emitting diodes with low-temperature-grown GaN capping layer

Abstract The growth of indium-rich InGaN red light-emitting diodes (LEDs) is essential for realizing all-nitride full-color micro-LED displays. This study presents a strategy for fabricating red LEDs with InGaN/GaN multiple quantum wells (MQWs) by introducing a low-temperature-gr...