论文部分内容阅读
以CBP作为母体材料,绿色磷光染料Ir(ppy)3作为敏化剂,以荧光染料rubrene作为受主,制备了结构为ITO/2T-NATA(25 nm)/NPBX(25-d nm)/CBP:5%Ir(ppy)3:0.5%Rubrene(8 nm)/NPBX(d nm)/DPVBi(30nm)/TPBi(20 nm)/Alq(10 nm)/LiF(1 nm)/Al的白光器件。在器件中,敏化剂Ir(ppy)3、荧光染料rubrene的浓度分别为5.0 wt%和0.5 wt%,发光层的厚度选择8 nm,通过调整两层NPBX的厚度来改善器件的性能,得到了比较理想的白光发射。当d的厚度为10 nm时,器件在7 V的电压下最大电流效率达到11.2 cd/A,在17 V的电压下其最大亮度达到28 170 cd/m2,色坐标为(0.37,0.42),处于白光区。
The structure of ITO / 2T-NATA (25 nm) / NPBX (25-d nm) / CBP was prepared with CBP as the host material, Ir (ppy) 3 as the sensitizer and rubrene as the acceptor. : White light device of 5% Ir (ppy) 3: 0.5% Rubrene (8 nm) / NPBX (d nm) / DPVBi (30 nm) / TPBi (20 nm) / Alq (10 nm) / LiF . In the device, the sensitizer Ir (ppy) 3, the fluorescent dye rubrene concentrations were 5.0 wt% and 0.5 wt%, the thickness of the light-emitting layer selected 8 nm, by adjusting the thickness of two layers of NPBX to improve the performance of the device, get The ideal white light emission. When the thickness of d is 10 nm, the maximum current efficiency of the device reaches 11.2 cd / A at a voltage of 7 V, its maximum brightness reaches 28 170 cd / m2 at a voltage of 17 V, the color coordinates are (0.37,0.42), In the white area.