4,4'-(dibenzo[b,d]furan-2,8-diyl)bis(N,N-diphenylaniline) (BF-p-TPA) and 4,4'-(dibenzo[b,d]furan-2,6-diyl)bis(N,N-diphenylaniline) (BF-2,6-TPA), were designed and synthesized. Owing to the rigid dibenzofuran core, these BF-TPA derivatives exhibited high thermal decomposition temperatures of over 395 °C and very high LUMO energy levels. Electroluminescent (EL) devices were fabricated using these three
三种新型的空穴传输材料3,3'-(dibenzo [ b,d ]
呋喃-2,8-diyl)bis(N,N -diphenylaniline)(BF-m-
TPA),4,4'-(dibenzo [ b,d ]
呋喃-2,8-二基)双(N,N-二苯基
苯胺)(BF-p-
TPA)和4,4'-(二苯并[ b,d ]
呋喃-2,6-二基)双(N,N-二苯基
苯胺)(BF-2,6-
TPA)被设计和合成。由于具有坚硬的
二苯并呋喃核,这些BF-
TPA衍
生物显示出超过395°C的高热分解温度和非常高的LUMO能级。使用这三种空穴传输材料制造了电致发光(EL)器件。对于BF-m-
TPA,获得了最佳的设备性能,最大亮度(L)为15,230 cd / m 2,56.5 cd / A的亮度效率(LE),13.3 lm / W的功率效率(PE)和16.3%的外部量子效率(EQE)。