LED
Light-emitting diodes (LEDs) are at the forefront of next-generation display and lighting technologies, offering high efficiency, ultra-high brightness, and energy savings. Our research focuses on developing advanced light-emitting materials, particularly metal halide perovskites (MHPs) and chalcogenides, to enhance the LED performance and scalability. MHPs have demonstrated exceptional optoelectronic properties, achieving external quantum efficiencies (EQEs) exceeding 28%, surpassing OLEDs in charge injection and transport capability, The promising potential of perovskites for LED applications is highlighted in the work by Kumawat et al., 2023.1 Meanwhile, chalcogenide perovskites offer superior environmental stability and optimal bandgaps, making them promising for electrically pumped LEDs.
We aim at optimizing the emission layer (EML) and refining the electron injection layer (EIL) and hole injection layer (HIL) to enhance charge injection, balance carrier transport and maximize radiative recombination. By improving these key layers, we aim to achieve highly efficient and stable LEDs with superior brightness and longevity, enabling ultra-high brightness (>400,000 cd/m²) and longer operational lifetimes.
References
(1) Kumawat, K. L.; Nanda, K. K.; Rajamalli, P. Intrinsic Stability of Perovskite Materials and Their Operational Stability in Light-Emitting Diodes. J. Mater. Chem. C 2023, 11 (22), 7159–7182. https://doi.org/10.1039/D2TC04798E.
