Research Laboratories, Eastman Kodak Company, 1999 Lake Avenue, Rochester, New York 14650-2103, USA.
Inorg Chem. 2010 Feb 15;49(4):1301-3. doi: 10.1021/ic9022097.
A new class of coumarin-based iridium tris-cyclometalated complexes has been developed. These complexes are highly emissive, with emission colors ranging from green to orange-red. Besides modification of ligand structures, color tuning was realized by incorporation of ligands with different electrochemical properties in a heteroleptic structure. The organic light-emitting diodes (OLEDs) using these compounds as emissive dopants are highly efficient and stable. Unlike other Ir(III) phosphorescent dopants, these coumarin-based Ir(III) dopants can effectively trap and transport electrons in the emissive layer.
一类新型香豆素基铱三环金属配合物已经被开发出来。这些配合物具有很强的发光性，发光颜色从绿色到橙红色。除了对配体结构进行修饰外，还通过在杂化结构中引入具有不同电化学性质的配体来实现颜色调谐。以这些化合物作为发光掺杂剂的有机发光二极管（OLED）具有很高的效率和稳定性。与其他 Ir(III)磷光掺杂剂不同，这些基于香豆素的 Ir(III)掺杂剂可以有效地在发射层中捕获和传输电子。
