Nowadays, the design and development of novel phosphorescent iridium(III) complexes for various optoelectronic applications is a well-recognized area of research. The fascinating photophysical properties of iridium(III) compounds are strongly influenced by the spin-orbit coupling exerted by the iridium(III) core, usually resulting in intense emissions with short excited-state lifetimes, which can be precisely controlled with the aid of molecular engineering of the chelating ligand. This review focuses on the recent developments and state of the art knowledge on phosphorescent iridium(III) compounds, especially on heteroleptic complexes derived from 2,3′-bipyridine class of cyclometalating and ancillary ligands, highlighting the excited state phenomenon behind their emission behavior.

如今，用于各种光电应用的新型磷光铱（III）配合物的设计和开发已成为公认的研究领域。铱（III）化合物的引人入胜的光物理性能受铱（III）核施加的自旋-轨道耦合的强烈影响，通常会导致激发态寿命短的强发射，这可以借助分子精确控制。螯合配体的工程。这篇综述着重于磷光铱（III）化合物的最新发展和技术知识，尤其是衍生自2,3'-联吡啶类环金属化和辅助配体的杂配物，强调了其发射行为背后的激发态现象。