环金属铱配合物在发光电化学池中的应用
收稿日期: 2018-12-08
修回日期: 2019-01-16
网络出版日期: 2019-01-31
基金资助
国家自然科学基金（Nos.51763013，51403088）和中国博士后基金（Nos.2018T110659，2016M592111）资助项目.
Application of Light-Emitting Electrochemical Cells Based on Cyclometalated Iridium Complexes
Received date: 2018-12-08
Revised date: 2019-01-16
Online published: 2019-01-31
Supported by
Project supported by the National Natural Science Foundation of China (Nos. 51763013, 51403088) and the China Postdoctoral Science Foundation (Nos. 2018T110659, 2016M592111).
与有机电致发光二极管（OLED）相比，发光电化学池（LEC）的器件结构更加简单，可以采用高功涵金属作为电极，因此在照明领域和移动设备终端显示方面具有巨大的应用前景，与其相关的研究与开发越来越受到科学界的重视.基于离子型过渡金属配合物的发光电化学池，由于具有不需要额外添加离子型导电材料和可以充分利用单线态和三线态激子的优点，受到业界广泛关注.与其它离子型过渡金属配合物相比，离子型铱配合物具有发光效率高、光学稳定性好以及发光颜色容易调节等优点.综述了近10年环金属铱配合物在发光电化学池中的应用，重点对离子型铱配合物在发光电化学池中的应用进行了评述，并对环金属铱配合物在发光电化学池领域的发展进行了展望.
周文静 , 刘志谦 , 王志平 , 胡斯帆 , 梁爱辉 . 环金属铱配合物在发光电化学池中的应用[J]. 有机化学, 2019 , 39(5) : 1214 -1225 . DOI: 10.6023/cjoc201812010
Light-emitting electrochemical cells (LECs), which contain ionic compounds in the light-emitting layer, have attracted considerable interest for their solid-statelighting and next generation display applications. Compared with conventional organic light-emitting diodes (OLEDs), LECs contain simple device architecture (generally only one light- emitting layer), and can use air-stable metals (e.g. Al, Ag and Au) as the cathodes directly. In particular, LECs based on ionic transition metal complexes (iTMCs) have received more attention because of their several advantages over conventional polymer-based LECs. For iTMCs-based LECs, no inorganic salt or ion-conducting polymer is needed because iTMCs are intrinsically ionic. Higher efficiency is expected for iTMCs-based LECs because iTMCs emit efficient phosphorescence at room temperature as they can harvest both singlet and triplet excitons. Compared to other iTMCs, ionic iridium complexes have been widely utilized in optoelectronics, owing to their relevant luminescent properties, such as high emission quantum yields, stability and easy tunability of the emission color. The recent research progress of iridium complexes applied in LECs, including their synthesis, structural characterization and optoelectronic properties is summarized. This review mainly focuses on the development of ionic iridium complex-based LECs with different light-emitting colors and the improvement of device performances. In addition, the future directions of iridium complexes in LECs are also discussed.
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