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Progress in Chemistry 2011, Vol. 23 Issue (9): 1871-1882 Previous Articles   Next Articles

• Review •

Light-Emitting Electrochemical Cells Based on Ionic Iridium(Ⅲ) Complexes

Zhou Lixia, Liu Shujuan, Zhao Qiang*, Ling Qidan, Huang Wei*   

  1. Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210046, China
  • Received: Revised: Online: Published:
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In recent years, light-emitting electrochemical cells (LECs) based on ionic transition metal complexes (iTMCs) with phosphorescent emission have attracted considerable interest because of their great potentials in display and lighting applications. Among all the iTMCs, ionic iridium(Ⅲ) complexes are one of the best phosphorescent materials because of their advantageous emission properties, such as high luminescent efficiency and tunable emission colors. This review summarized the recent research progress of ionic iridium(Ⅲ) complexes applied in light-emitting electrochemical cells, mainly focusing on the development of LECs with different light-emitting colors and the improvement of device performances. In addition, the future directions in this field are also discussed.

Contents
1 Introduction
2 Mechanism of LECs
3 Iionic Ir(Ⅲ) complexes-based LECs with different light-emitting colors
3.1 Blue-green-emitting ionic Ir(Ⅲ) complexes-based LECs
3.2 Red-emitting ionic Ir(Ⅲ) complexes-based LECs
3.3 Yellow-emitting ionic Ir(Ⅲ) complexes-based LECs
3.4 White-emitting ionic Ir(Ⅲ) complexes-based LECs
4 Optimization of ionic Ir(Ⅲ) complexes-based LECs performances
4.1 Decreasing the turn-on time of ionic Ir(Ⅲ) complexes-based LECs
4.2 Improving the stability of ionic Ir(Ⅲ) complexes-based LECs
4.1 Increasing the efficiency of ionic Ir(Ⅲ) complexes-based LECs
5 Conclusion and outlook

 

 

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