Tetraalkyl-substituted zinc phthalocyanines used as anode buffer layers for organic light-emitting diodes*

Project supported by the Shenzhen Personal Maker Project, China (Grant No. GRCK2017082316173208), the Shenzhen Overseas High-level Talents Innovation Plan of Technical Innovation, China (Grant No. KQJSCX20180323140712012), and the Special Funds for the Development of Strategic Emerging Industries in Shenzhen, China (Grant No. JCJY20170818154457845).

Chen Qian, Yang Songhe, Dong Lei, Cai Siyuan, Xu Jiaju, Xu Zongxiang
       

(a) Molecular structures of the materials used. (b) Device configurations and energy level diagrams of the OLEDs in this study.