The present invention provides electronic devices comprising novel organic iridium compositions which provide for enhanced device performance. The novel iridium compositions employed comprise at least one novel organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The organic iridium compositions employed are referred to as Type (1) organic iridium compositions and are constituted such that no ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (1) organic iridium compositions are referred to herein as comprising “organic iridium complexes”. In one aspect, the present invention provides optoelectronic devices, such as OLED devices and photovoltaic devices. In another aspect, the invention provides OLED devices exhibiting enhanced color properties and light output efficiencies.
本发明提供了包括新型
有机铱化合物的电子设备,这些化合物提供了增强的设备性能。所使用的新型
铱化合物包括至少一种新型
有机铱化合物,其中包含至少一种环
金属
配体和至少一种酮
吡咯配体。所使用的
有机铱化合物被称为类型(1)
有机铱化合物,并且构成为使得该新型
有机铱化合物的任何
配体的数量平均分子量不大于2,000克/摩尔(由凝胶渗透色谱法测量)。本文中所指的类型(1)
有机铱化合物被称为“
有机铱配合物”。在一个方面,本发明提供了光电子器件,例如OLED器件和光伏器件。在另一个方面,本发明提供了展示增强的颜色性能和光输出效率的OLED器件。