论文部分内容阅读
以8-羟基喹啉(q)和1,3-二苯基-1,3-丙二酮定向合成了有机小分子配合物Znq(DBM),将其作为发光层制备了单色有机电致发光器件(OLED)。在结构为ITO/m-MTDATA(5nm)/NPB(40nm)/Znq(DBM)(60nm)/LiF(0.5nm)/Al(100nm)的器件中,启亮电压为5V,最大亮度达到4 575cd/m2。同时又在器件中引入间隔层BCP,研究其不同厚度对OLED性能的影响。在结构为ITO/m-MTDATA(5nm)/NPB(40nm)/BCP(x nm)/Znq(DBM)(60nm)/LiF(0.5nm)/Al(100nm)的器件中,当BCP层厚为0nm时,发光颜色为黄绿色;当BCP层厚为1nm时,发光颜色为白色,色坐标为(0.29,0.33),最大亮度为2 231cd/m2;当BCP层厚为5nm时,发光颜色为蓝色。根据器件结构和性能,讨论了其内部机理。
The organic small molecule complex Znq (DBM) was synthesized with 8-hydroxyquinoline (q) and 1,3-diphenyl-1,3-propanedione as monochromatic organic electroluminescent Light Emitting Device (OLED). In a device with a structure of ITO / m-MTDATA (5nm) / NPB (40nm) / Znq (DBM) (60nm) / LiF (0.5nm) / Al (100nm), the ON voltage was 5V and the maximum brightness reached 4575cd / m2. At the same time, BCP was introduced into the device to study the effect of different thickness on the performance of OLED. In a device with a structure of ITO / m-MTDATA (5nm) / NPB (40nm) / BCP (xnm) / Znq (DBM) (60nm) / LiF (0.5nm) / Al When the BCP layer thickness is 1nm, the color of the light emission is white, the color coordinate is (0.29,0.33) and the maximum brightness is 2 231cd / m2. When the thickness of BCP layer is 5nm, the color of light emission is blue. According to the device structure and performance, the internal mechanism is discussed.