Department of Information Display and Advanced Display Research Center, Kyung Hee University, Seoul, 130-701, Republic of Korea.
Macromol Rapid Commun. 2014 Apr;35(8):807-12. doi: 10.1002/marc.201400002. Epub 2014 Feb 13.
Two thermally cross-linkable hole transport polymers that contain phenoxazine and triphenylamine moieties, X-P1 and X-P2, are developed for use in solution-processed multi-stack organic light-emitting diodes (OLEDs). Both X-P1 and X-P2 exhibit satisfactory cross-linking and optoelectronic properties. The highest occupied molecular orbital (HOMO) levels of X-P1 and X-P2 are -5.24 and -5.16 eV, respectively. Solution-processed super yellow polymer devices (ITO/X-P1 or X-P2/PDY-132/LiF/Al) with X-P1 or X-P2 hole transport layers of various thicknesses are fabricated with the aim of optimizing the device characteristics. The fabricated multi-stack yellow devices containing the newly synthesized hole transport polymers exhibit satisfactory currents and power efficiencies. The optimized X-P2 device exhibits a device efficiency that is dramatically improved by more than 66% over that of a reference device without an HTL.
开发了两种含有吩嗪和三苯胺部分的热交联空穴传输聚合物 X-P1 和 X-P2，用于溶液处理的多堆叠有机发光二极管 (OLED)。X-P1 和 X-P2 都表现出令人满意的交联和光电性能。X-P1 和 X-P2 的最高占据分子轨道 (HOMO) 能级分别为-5.24 和-5.16 eV。具有不同厚度的空穴传输层的溶液处理超黄色聚合物器件（ITO/X-P1 或 X-P2/PDY-132/LiF/Al）用 X-P1 或 X-P2 空穴传输聚合物制造，目的是优化器件特性。含有新合成空穴传输聚合物的多堆叠黄色器件表现出令人满意的电流和功率效率。优化后的 X-P2 器件的器件效率比没有 HTL 的参考器件提高了 66%以上，得到了显著改善。
