A cationic iridium complex meets an electron-transporting counter-anion: enhanced performances of solution-processed
Ningzi Luo1, Ying Lan1, Ruiren Tang1
1College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China. helei06@csu.edu.cn.
Abstract:
An electron-transporting counter-anion, OXD-7-SO3-, was developed for a blue-green-emitting cationic iridium complex, which showed superior device performance in solution-processed phosphorescent light-emitting diodes over its counterpart complex with a PF6- counter-anion, due to the facilitated electron-injection/transport and more balanced carrier recombination imparted by OXD-7-SO3-.
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