Recent Advances in Highly Efficient Small-Molecule TADF Emitters for Solution-Processed OLEDs

Abstract

Solution-processable thermally activated delayed fluorescence (TADF) emitters have demonstrated strong competitiveness and significant development potential in display applications, due to their intrinsic merits of low cost, high efficiency, and compatibility with large-area fabrication. This comprehensive review highlights recent advancements in small-molecule solution-processable TADF emitters across the full-color spectrum, including NIR, red, green, blue, and purple. It delves into their molecular design and electrical properties, with a particular emphasis focus on efficiency, color purity, and device stability. Ultimately, this review aims to provide valuable guidance for the development of high-efficiency, narrowband-emission, and stable solution-processed organic light-emitting diodes.