Kilpatrick Townsend & Stockton
Organic electroluminescent devices and preparation methods thereof
The present disclosure relates to an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device includes a hole injection layer including a first doped layer and/or a second doped layer. The first doped layer includes a P-type dopant, and the second doped layer includes a P-type dopant and a hole transport material. The organic electroluminescent device includes a hole transport layer formed on the hole injection layer, and an electron blocking layer formed on the hole transport layer. A difference in HOMO energy level between the electron blocking layer and the hole transport layer is less than or equal to 0.2 eV. The power consumption of the organic electroluminescent device can be reduced. The lifetime of the mass production device therefore can be increased.
KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
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Lei Shengfang Weiwei Chao Xiuqi Xiaoyu
Xu Liu Li Min Huang Gao