A novel and highly efficient bis(trifluoromethyl)phenyl functionalized iridium(III) complex is designed and synthesized. The complex shows intensive greenish yellow phosphorescence (525 nm with 563 nm as shoulder), high photoluminescence efficiency (0.90) and moderate full width at half maximum (72 nm). The bulky bis(trifluoromethyl)phenyl moiety introduced into the complex provides the excellent solubility and effective steric hindrance for solution-processed organic light-emitting diodes. The maximum power efficiency and current efficiency of electroluminescence are 4.13 lm/W and 9.54 cd/A, respectively.

中文翻译：

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溶液处理的高效双（三氟甲基）苯基官能化磷光中性铱（III）配合物，用于发绿黄色电致发光

设计并合成了一种新型的高效双（三氟甲基）苯基官能化铱（Ⅲ）配合物。该复合物显示出强烈的黄绿色磷光（525 nm，肩部为563 nm），高光致发光效率（0.90），半峰全宽（72 nm）适中。引入配合物中的庞大的双（三氟甲基）苯基部分为溶液处理的有机发光二极管提供了出色的溶解性和有效的空间位阻。电致发光的最大功率效率和电流效率分别为4.13 lm / W和9.54 cd / A。