Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Июнь 4, 2025
Abstract Organic room‐temperature phosphorescence (RTP) materials with large Stokes shifts and prolonged afterglows are gaining increasing attention in a variety of applications, including displays, anti‐counterfeiting, sensing, bioimaging. However, achieving high‐performance organic RTP remains challenging due to weak spin‐orbit coupling, rapid non‐radiative decay, unstable triplet excitons. Early studies focused on crystal engineering, as ordered lattices restrict molecular motion stabilize Analyzing structures packing provides valuable insights into intermolecular interactions, while theoretical calculations have clarified electronic structures, laying the foundation for rational material design. recent findings suggest many single‐component systems may arise from trace impurities, significantly influencing properties. This discovery has greatly advanced understanding impurity‐induced phosphorescence. review systematically examines role impurities RTP, detailing their origins starting materials, solvents, side reactions. It also explores how these identified can serve essential building blocks designing new materials. Finally, methods evaluating compound purity, emphasizing critical importance rigorous analysis validation presented. Material purity plays pivotal research, distort experimental data, potentially leading misinterpretations that impede advancements underlying mechanisms.
Язык: Английский