714 nm emission with 12.25% efficiency from iridium complexes with low iridium content by the strategy of rigid coordination core and amplifying shell
Li Wang, Sai Wang, Caifa You, Xiang Chang, Jingwei Huang, Weiqiong Zhen, Hu Zhang, Xiangqin Gan, Xiugang Wu, Weiguo Zhu
Abstract
A novel core–shell-typed Ir( iii ) complex with a rigid C^N coordinated core of DBPz and an amplifying peripheral shell of t BuTPA. Its doped OLEDs exhibited a 714 nm emission with an outstanding EQE of 12.25% and a recorded radiance emittance of 45 330 mW Sr −1 m −2 .
Topics & Concepts
IridiumCore (optical fiber)Materials scienceShell (structure)OLEDDopingRadianceOptoelectronicsNanotechnologyOpticsComposite materialPhysicsCatalysisChemistryLayer (electronics)Organic chemistryOrganic Light-Emitting Diodes ResearchLanthanide and Transition Metal ComplexesMagnetism in coordination complexes