基于离子型过渡金属配合物的发光电化学池在信息显示和固体照明方面极具应用前景,因此其相关材料的设计、开发和器件性能的提高等工作在近几年引起了人们广泛的研究兴趣。在各类离子型过渡金属配合物中,离子型铱配合物由于发光效率高,发光颜色容易调节等优点而受到广泛关注。本文综述了近几年来离子型铱配合物在发光电化学池中的应用进展,重点评述了不同发光颜色的发光电化学池的制备和器件的高性能化等方面的研究进展,并展望了基于离子型铱配合物的发光电化学池这一研究领域的发展前景。
In recent years,light-emitting electrochemical cells(LECs) based on ionic transition metal complexes(iTMCs) with phosphorescent emission have attracted considerable interest because of their great potentials in display and lighting applications.Among all the iTMCs,ionic iridium(Ⅲ) complexes are one of the best phosphorescent materials because of their advantageous emission properties,such as high luminescent efficiency and tunable emission colors.This review summarized the recent research progress of ionic iridium(Ⅲ) complexes applied in light-emitting electrochemical cells,mainly focusing on the development of LECs with different light-emitting colors and the improvement of device performances.In addition,the future directions in this field are also discussed.