Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
Adv Mater. 2014 Aug 13;26(30):5198-204. doi: 10.1002/adma.201401393. Epub 2014 Jun 5.
Thermally activated delayed fluorescence emitters with small energy gap between the triplet and singlet (ΔEST ), TXO-PhCz and TXO-TPA, have been successfully synthesized by combining a hole-transporting TPA/PhCz moiety and an electron-transporting TXO moiety. Both compounds display efficient solid-state luminescence with an efficient up-conversion of the triplet to singlet. OLEDs based on them exhibt high performance up to 21.5%, which is among the best reported for OLEDs.
热致延迟荧光发射体具有较小的三重态和单重态之间的能隙（ΔEST），通过将空穴传输 TPA/PhCz 部分和电子传输 TXO 部分结合，成功合成了 TXO-PhCz 和 TXO-TPA。这两种化合物都具有高效的固态发光，且三重态到单重态的高效上转换。基于它们的 OLED 表现出高达 21.5%的高性能，这在 OLED 报道中属于最佳性能之一。
