28‐2: Invited Paper: The Development of High‐Efficiency Pure Organic Light‐Emitting Materials and High‐Performance White OLEDs

Abstract

The increasing commercial applications of organic light‐emitting diodes (OLEDs) inspire great development of high‐efficiency emissive materials. Among of which, pure organic thermally activated delayed fluorescence (TADF) materials have been considered as the third‐generation OLED emissive materials, and huge attentions are paid to the exploration of molecular design strategies for achieving high efficiency TADF materials. Accordingly, the past years have witnessed a considerable rise in device performance of TADF‐mechanism based OLEDs. In this paper, we would like to provide a brief summary of our research work regarding to TADF materials as well as its applications in OLED including white OLEDs.

AIEgen configuration transition and aggregation enable dual prompt emission for single‐component nondoped white OLEDs

“…[ 1–5 ] Until now, WOLEDs have primarily been achieved by blending two (blue and yellow) or three (red, green, and blue) emitters, with emission spanning the entire visible spectrum from 400 to 700 nm. [ 2,6 ] However, multi‐component WOLEDs require complex device architectures, highly‐demanding manufacturing processes, and substantial consumption of emitters, contributing to prohibitively expensive devices that are also susceptible to phase segregation, color aging, and poor reproducibility. [ 7,8 ] In contrast, WOLEDs realized by single molecules exhibit several advantages, especially the simplicity of fabrication, low cost, and long‐term stability, which have garnered tremendous attention.…”