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The real anode and the electrons-pump-layer of OLED

FANGCONG WANG1,2,* , HAIXIA LI3, PENG CHANG1,2

Affiliation

  1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education
  2. Institute of microelectronics, School of physical science and technology, Lanzhou University, Lanzhou, 730000, People’s Republic of China
  3. Institute of Modern Physics, Chinese Academy of Science, Lanzhou, 730000, People’s Republic of China

Abstract

The widely used anode for organic light emitting devices (OLED) is ITO/metal/ITO or ITO/insulated layer which could improve the performance of OLED than which only ITO as anode could, while the contribution of such multilayer anode to improve device performance is still poorly understood. A number of mechanisms were proposed for this kind of anode, some different mechanism is given by us here which are demonstrated by the next experiments. The metal plays the role of real anode for OLED and the insulated layer such as LiF, Al2O3, Ta2O5, SiOxNy, TiO2, and ZnS contributes as the electrons-pump-layer..

Keywords

OLED, Electrons-pump-layer.

Citation

FANGCONG WANG, HAIXIA LI, PENG CHANG, The real anode and the electrons-pump-layer of OLED, Optoelectronics and Advanced Materials - Rapid Communications, 5, 6, June 2011, pp.610-612 (2011).

Submitted at: Feb. 10, 2011

Accepted at: June 9, 2011