Kang Hyun Ju, Lee Kum Hee, Kim Heo Min, Seo Ji Hyun, Kim Young Kwan, Yoon Seung Soo
Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
J Nanosci Nanotechnol. 2012 Apr;12(4):3455-9. doi: 10.1166/jnn.2012.5664.
Red phosphorescent emitters were synthesized based on Ir(III) phenylquinoline complexes for applications to OLEDs. Ir(III) complexes 1-3 were based on 2-(biphenyl-3-yl)-quinoline units connected to various phenyl groups such as 5-phenyl, 5-(4-fluorophenyl), and 6-phenyl groups. The EL efficiencies were quite sensitive to the structural features of the dopants in the emitting layers. In particular, a high-efficiency red OLED was fabricated using complex 1 as the dopant in the emitting layer. This OLED showed a maximum luminance, luminous efficiency, power efficiency, external quantum efficiency and CIE(x,y) coordinates of 21,600 cd/m2 at 16 V, 11.80 cd/A at 20 mA/cm2, 3.57 Im/W at 20 mA/cm2, 10.90% at 20 mA/cm2, and (x = 0.63, y = 0.32) at 12 V, respectively.
基于铱（III）苯基喹啉配合物合成了红色磷光发射体，用于有机发光二极管（OLED）。铱（III）配合物1 - 3基于连接到各种苯基（如5 - 苯基、5 -（4 - 氟苯基）和6 - 苯基）的2 -（联苯 - 3 - 基）喹啉单元。电致发光（EL）效率对发光层中掺杂剂的结构特征非常敏感。特别是，使用配合物1作为发光层中的掺杂剂制备了高效红色OLED。该OLED在16 V时的最大亮度、发光效率、功率效率、外量子效率和CIE（x，y）坐标分别为21,600 cd/m²、在20 mA/cm²时为11.80 cd/A、在20 mA/cm²时为3.57 Im/W、在20 mA/cm²时为10.90%，以及在12 V时为（x = 0.63，y = 0.32）。
