通过研究新型荧光材料2-(2-溴-5-乙烯-噻吩)-8-羟基喹啉锌(BTHQZn)的电致发光特性, 发现BTHQZn具有良好的电致发光特性和空穴传输特性, 利用此特性制备了掺杂型有机电致黄光器件, 结构为ITO/2T-NATA(30nm)/CBP∶5％Ir(ppy)3∶10％BTHQZn(20nm)/Alq3(50nm)/LiF(0. 5nm)/Al, 器件在12V时实现了黄绿光发射, 最大发光亮度为4 552 cd/m2, 色坐标为(0.395 4, 0.497 6), 在11V电压下的最大发光效率为2.82cd/A。

The electroluminescence(EL)characteristics of a novel yellow emitting material (BTHQZn)were investigated in this paper. The results demonstrated the BTHQZn with strong emitting and hole-transporting ability. Based on the performances, a series of undoping and doping yellow organic light-emitting diodes(OLEDs)were fabricated. The yellow device was fabricated as follows: ITO/2T-NATA(30nm)/CBP∶5％Ir(ppy)3∶10％ BTHQZn(20nm)/Alq3(50nm)/LiF(0. 5nm)/Al, the maximum luminance was 4 552cd/m2 at an applied voltage of 12V, while the Commission International de L'Eclairage coordinates was (0. 395 4, 0. 497 6), and the maximum luminous efficiency was 2. 82cd/A at applied voltage of 11 V.