Synergistic optimization of emitting dipole orientation with platinum-based phosphorescent sensitizers and boron multi-resonance fluorescent emitters for high-performance phosphor-sensitized fluorescent OLEDs

Abstract

Phosphor-sensitized fluorescent (PSF) OLEDs represent a promising strategy to overcome challenges in achieving high-performance blue OLEDs with superior color purity. This study highlights the synergistic interaction between Pt-based phosphorescent sensitizers and boron-based multi-resonance fluorescent emitters, resulting in enhanced emitting dipole orientation (EDO) of 81%, higher than the individual components. This approach achieves a maximum external quantum efficiency (EQE) of 25% and a narrow emission spectrum with a full width at half maximum (FWHM) of 29 nm. By leveraging energy transfer mechanisms and precise molecular alignment, the PSF system delivers significant advancements in optoelectrical performance, paving the way for next-generation OLED displays.For the keywords, select up to 8 key terms for a search on your manuscript's subject.