Pak Soyoung, Kang Jisu, Hwang Namhee, Cho Seokwon, Lee Song Eun, Kim Young Kwan, Yoon Seung Soo
Department of Chemistry, Sungkyunkwan University, Suwon, Kyeonggi-do 440-746, Korea.
Department of Information Display, Hongik University, Seoul, 121-791, Korea.
J Nanosci Nanotechnol. 2019 Mar 1;19(3):1597-1602. doi: 10.1166/jnn.2019.16160.
Among the three primary colors, blue-emitting materials are limited by the wide energy band gap. In this study, we designed and synthesized emitting materials based on indeno-phenanthrene/ triphenylene derivatives. Organic light emitting-diodes (OLEDs) using these materials were fabricated in the following sequence; ITO/,'-diphenyl-,'-(2-napthyl)-(1,1'-phenyl)-4,4'-diamine (NPB) (500 Å)/Blue materials (30 nm)/4,7-diphenyl-1,10-phenanthroline (BPhen) (30 nm)/lithium quinolate (Liq) (20 Å)/Al (1000 Å). All the devices showed efficient blue emission. Particularly, a device using 10,10-dimethyl-,-diphenyl-10-indeno[1,2-]triphenylen-12-amine as an emitter exhibited luminous efficiency, power efficiency, and external quantum efficiency of 3.62 cd/A, 1.83 lm/W, 2.82% at 20 mA/cm², respectively, with Commission Internationale d'Énclairage (CIE) coordinates of (0.16, 0.15) at 6.0 V.
在三原色中，蓝光发射材料受到宽带隙的限制。在本研究中，我们设计并合成了基于茚并菲/三亚苯基衍生物的发光材料。使用这些材料的有机发光二极管（OLED）按以下顺序制备：氧化铟锡（ITO）/N，N'-二苯基-N，N'-（2-萘基）-（1，1'-联苯）-4，4'-二胺（NPB）（500埃）/蓝色材料（30纳米）/4，7-二苯基-1，10-菲咯啉（BPhen）（30纳米）/喹啉酸锂（Liq）（20埃）/铝（Al）（1000埃）。所有器件均显示出高效的蓝光发射。特别地，使用10，10-二甲基-N，N-二苯基-10-茚并[1，2-b]三亚苯基-12-胺作为发光体的器件在20毫安/平方厘米时的发光效率、功率效率和外量子效率分别为3.62坎德拉/安培、1.83流明/瓦、2.82%，在6.0伏时的国际照明委员会（CIE）坐标为（0.16，0.15）。
