The ever-growing prominence and widespread acceptance of organic light-emitting diodes (OLEDs), particularly those employing thermally activated delayed fluorescence (TADF), have firmly established them as formidable contenders in the field of lighting technology.TADF enables achieving a 100% utilization rate and efficient luminescence through reverse intersystem crossing (RISC).However, the effectiveness of TADF-OLEDs is ACCESSORIES LUGGAGE influenced by their high current density and limited device lifetime, which result in a significant reduction in efficiency.This comprehensive review introduces the TADF mechanism and provides a detailed overview of recent advancements in Hook the development of host-free white OLEDs (WOLEDs) utilizing TADF.This review specifically scrutinizes advancements from three distinct perspectives: TADF fluorescence, TADF phosphorescence and all-TADF materials in host-free WOLEDs.
By presenting the latest research findings, this review contributes to the understanding of the current state of host-free WOLEDs, employing TADF and underscoring promising avenues for future investigations.It aims to serve as a valuable resource for newcomers seeking an entry point into the field as well as for established members of the WOLEDs community, offering them insightful perspectives on imminent advancements.