In this contribution, recent advances in new classes of efficient metal-TADF complexes, especially those of Au(I), Au(III), and W(VI), and their application in OLEDs are reviewed. The high performance (EQE = 25%) and long device operational lifetime (LT₉₅ = 5,280 h) achieved in an OLED with tetradentate Au(III) TADF emitter reflect the competitiveness of this class of emitters for use in OLEDs with practical interest. The high EQE of 15.6% achieved in solution-processed OLED with W(VI) TADF emitter represents an alternative direction toward low-cost light-emitting materials. Finally, the design strategy of metal-TADF emitters and their next-stage development are discussed.

在此贡献中，综述了新型高效金属-TADF配合物的最新进展，尤其是Au（I），Au（III）和W（VI）的配合物及其在OLED中的应用。在具有四齿Au（III）TADF发射器的OLED中实现的高性能（EQE = 25％）和较长的器件工作寿命（LT ₉₅ = 5,280 h）反映了此类发射器在实际应用中在OLED中的竞争力。在具有W（VI）TADF发射器的溶液处理OLED中实现的15.6％的高EQE代表了转向低成本发光材料的另一方向。最后，讨论了金属TADF发射器的设计策略及其下一步发展。