一种无掺杂磷光有机发光器件，外量子效率超过 31%。
A non-doped phosphorescent organic light-emitting device with above 31% external quantum efficiency.
机构信息
Department of Materials Science and Engineering and Erik Jonsson School of Engineering and Computer Science, University of Texas at Dallas, Richardson, TX, 75083, USA; Department of Electrical Engineering and Computer Sciences, College of Engineering, South Dakota State University, Brookings, SD, 57007, USA; Department of Applied Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
出版信息
Adv Mater. 2014 Dec 23;26(48):8107-13. doi: 10.1002/adma.201402947. Epub 2014 Sep 15.
The demonstrated square-planar Pt(II)-complex has reduced triplet-triplet quenching and therefore a near unity quantum yield in the neat thin film. A non-doped phosphorescent organic light-emitting diode (PhOLED) based on this emitter achieves (31.1 ± 0.1)% external quantum efficiency without any out-coupling, which shows that a non-doped PhOLED can be comparable in efficiency to the best doped devices with very complicated device structures.
所展示的平面正方形 Pt(II)-配合物减少了三重态-三重态猝灭，因此在纯薄膜中具有接近 unity 的量子产率。基于该发射器的非掺杂磷光有机发光二极管 (PhOLED) 在没有任何外耦合的情况下实现了 (31.1 ± 0.1)% 的外部量子效率，这表明非掺杂 PhOLED 的效率可以与具有非常复杂器件结构的最佳掺杂器件相媲美。
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