Sky-blue phosphorescent organic light-emitting diode with superior performance based on novel chlorine functionalized iridium(III) complex |
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| Authors: | Long Gao Peng Tao Yanqin Miao Wei Jia Yaping Zhao Hua Wang Bingshe Xu |
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| Institution: | 1. MOE Key Laboratory of Interface Science and Engineering in Advanced Materials, Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China;2. Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), Nanjing 210023, PR China |
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| Abstract: | A novel and highly efficient chlorine functionalized iridium(III) complex is designed and synthesized. The complex shows intensive sky-blue phosphorescence (with a peak of 492?nm and a shoulder at 524?nm), high photoluminescence efficiency (0.78) and moderate full width at half maximum (62?nm). The aromatic chlorine introduced into the complex provides the robust chemical stability and effective sky-blue phosphorescence for organic light-emitting diodes (OLEDs). The maximum power efficiency, current efficiency and external quantum efficiency for the complex based OLED are up to 48.46?lm/W, 55.04?cd/A and 18.47%, respectively. |
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| Keywords: | Aromatic carbon-chlorine bond Iridium(III) complex Organic light-emitting diodes Sky-blue phosphorescence |
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