High-efficiency hyperfluorescent white light-emitting diodes based on high-concentration-doped TADF sensitizer matrices <i>via</i> spatial and energy gap effects
Chunbo Duan, Ying Xin, Zicheng Wang, J. Zhang, Chunmiao Han, Hui Xu
Abstract
, approaching the level of fluorescent tubes. Transient photoluminescence (PL) and electroluminescence (EL) kinetics demonstrate that the spatial separation of TBPe from the TADF sensitizer and TBRb, and the large energy gap between the latter two effectively suppress triplet leakage, in addition to suppressing triplet diffusion in the PhCzSPOTz matrix with anisotropic intermolecular interactions. These results provide a new insight into the exciton allocation process in HF white light-emitting systems.
Topics & Concepts
DopingDiodeLight-emitting diodeMaterials scienceWhite lightOptoelectronicsBand gapOrganic Light-Emitting Diodes ResearchThin-Film Transistor TechnologiesLanthanide and Transition Metal Complexes