EFFECTIVE STRATEGIES FOR EFFICIENT EXCIPLEX EMISSION IN ORGANIC LIGHT-EMITTING DIODES

Tóm tắt

This paper presents a comprehensive investigation into the optimization of exciplex emission in organic light-emitting diodes (OLEDs). Through a systematic exploration of various combinations of hole-transporting materials (HTMs) and electron-transporting materials (ETMs), we elucidate critical factors influencing exciplex formation and its impact on OLED performance. Our analysis focuses on estimating the energy band gap of exciplexes, guiding the selection of appropriate material combinations. Experimental observations reveal distinct exciplex emission profiles and lifetime characteristics for different HTM/ETM combinations, providing valuable insights into exciplex formation dynamics. Importantly, we emphasize the significance of ensuring that the HTM/ETM combination possesses a higher triplet energy bandgap than the exciplex to optimize OLED performance and enhance energy efficiency. Overall, this study contributes to the advancement of OLED technology by offering effective strategies for achieving efficient exciplex emission, with implications for lighting, displays, and other applications