Park Jinho, Jang Beomsu, Moon Yu Ji, Lee Hakjun, Kim Young Kwan, Yoon Seung Soo
Department of Chemistry, Sungkyunkwan University Suwon, 16419, Korea.
Department of Information Display, Hongik University, Seoul, 04066, Korea.
J Nanosci Nanotechnol. 2020 Nov 1;20(11):6648-6652. doi: 10.1166/jnn.2020.18759.
In this study, we synthesized and characterized two novel deep blue emitting materials based on indenoquinoline-substituted phenylanthracene derivatives. Multilayer organic light-emitting diodes were fabricated with the following sequence: indium-tin-oxide (ITO)/4,4',4″-tris[2-naphthyl(phenyl)amino (2-TNATA)/4,4'-bis(--naphthyl)--phenylamino) biphenyl (NPB)/Blue emitting material ( or )/Bathophenanthroline (Bphen)/lithium quinolate (Liq)/Al. A device using '7,7-dimethyl-9-(10-phenylanthracen-9-yl)-7H-indeno[1,2-f] isoquinoline ()' as an emitter showed the efficient emission with the luminous efficiency, power efficiency, and external quantum efficiency of 2.30 cd/A, 1.02 lm/W, 2.94% at 20 mA/cm², respectively. This device exhibited deep-blue emission with the Commission Internationale De LÉnclairage (CIE) coordinates of (0.16, 0.08) and = 436 nm at 8.0 V.
在本研究中，我们合成并表征了两种基于茚并喹啉取代的苯基蒽衍生物的新型深蓝色发光材料。多层有机发光二极管按以下顺序制备：氧化铟锡（ITO）/4,4',4″-三[2-萘基（苯基）氨基]（2-TNATA）/4,4'-双（-萘基）-苯基氨基]联苯（NPB）/蓝色发光材料（或）/浴铜灵（Bphen）/喹啉酸锂（Liq）/铝。使用“7,7-二甲基-9-（10-苯基蒽-9-基）-7H-茚并[1,2-f]异喹啉（）”作为发光体的器件在20 mA/cm²时分别显示出2.30 cd/A的发光效率、1.02 lm/W的功率效率和2.94%的外量子效率的高效发射。该器件在8.0 V时呈现出深蓝色发射，国际照明委员会（CIE）坐标为（0.16, 0.08），峰值波长λ = 436 nm。
