Stable and efficient organic light-emitting diodes were prepared using tetradentate platinum-based blue and red emitters. In one example, a series of stable and efficient red phosphorescent OLEDs was fabricated employing a phenyl-pyridyl-carbazole based tetradentate cyclometalated Pt(II) complex as an emitting dopant and utilizing a commercially available host, transporting, and blocking materials. By implementing this platinum complex in electrochemically stable device architectures, long operational lifetimes were achieved with an estimated LT97 of over 600 hrs at luminance of 1000 cd/m2.
使用四齿配位的
铂基蓝色和红色
发光材料,我们成功制备了稳定高效的有机发光二极管。例如,一系列稳定高效的红光
磷光OLED就是采用基于苯基-
吡啶基-
咔唑的四齿配位的环
金属
铂(II)配合物作为发光掺杂剂,并使用商业上可获得的宿主、传输和阻挡材料来制造的。通过在电
化学稳定的器件结构中实施这种
铂配合物,实现了长的操作寿命,估计在亮度为1000 cd/m2时的LT97寿命超过600小时。