(1.Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China） （2. Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China） （3.The College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024,China） (4. School of Physical Science and Electronics, Shanxi Datong University, Datong 037009, China)
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DOI:
10.7502/j.issn.1674-3962.2013.01.05
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Abstract:
Organic light emitting device (OLED) have been modern flatpanel display research hotspot due to its low cost，lightweight, low threshold voltage, high brightness, no back light source and luminous, wide viewing angle and mechanical flexibility. After 20 years of development, device performance of organic light emitting device (OLED) has been greatly improved. However, OLED cant be utilized widely for its rather poor performance, such as low luminous efficiency and short lifetime. Device performance of OLED is influenced largely by the device interface structure. In the present paper, we focused on research progress of metal / organic interface, the organic / organic interface anode / organic interface and the layer of internal material interface in OLED, discussed the relationship between the interface structures and OLED device performance, and the recent research results by a variety of analytical techniques and methods about the interfacial issues of OLED, such as interfacial molecular structure, energy band, characteristics of excited state and reaction. Finally, OLED interface research trends were mentioned.