Lee Jaehyun, Shin Hwangyu, Park Jongwook
J Nanosci Nanotechnol. 2016 Feb;16(2):2101-4. doi: 10.1166/jnn.2016.12026.
New host material of T-TATa isomer substituted t-butyl group was investigated in solution process WOLED device compared with 4-(10-(3',5'-diphenylbiphenyl-4-yl)anthracen-9-yl)-N,N-diphenylaniline [TATa]. A two-color WOLED of a co-host system using solution process method was demonstrated. The device configuration was ITO/PEDOT:PSS (40 nm)/emitting layer (50 nm)/TPBi (20 nm)/LiF (1 nm)/AI. The emitting layer consisted of TATa or T-TATa isomer, NPB, DPAVBi (blue dopant), and rubrene (yellow dopant). NPB was used as not only blue host but also helping hole carrier transport. The device using T-TATa compound as a co-host exhibited a luminance efficiency of 3.39 cd/A, which is about twice higher than TATa device of 1.58 cd/A at 10 mA/cm2.
与4-(10-(3',5'-二苯基联苯-4-基)蒽-9-基)-N,N-二苯胺[TATa]相比，在溶液法制备的有机发光二极管（WOLED）器件中研究了T-TATa异构体取代叔丁基的新型主体材料。展示了一种采用溶液法的共主体系统双色WOLED。器件结构为ITO/PEDOT:PSS（40纳米）/发光层（50纳米）/TPBi（20纳米）/LiF（1纳米）/Al。发光层由TATa或T-TATa异构体、NPB、DPAVBi（蓝色掺杂剂）和红荧烯（黄色掺杂剂）组成。NPB不仅用作蓝色主体，还有助于空穴载流子传输。使用T-TATa化合物作为共主体的器件在10 mA/cm²时的发光效率为3.39 cd/A，约为TATa器件1.58 cd/A的两倍。
