Organic electroluminescence device and manufacturing method thereof

Abstract

The invention provides an organic electroluminescence device. The organic electroluminescence device comprises a glass substrate, and an anode, a scattering layer, an organic light-emitting functional layer and a cathode which are sequentially arranged on the glass substrate in a stacked manner; the scattering layer comprises a first doped layer, a ferric salt layer and a second doped layer which are sequentially arranged on the anode in a stacked manner; the first doped layer is made of a mixed material of an organic material and ferric salt, and the second doped layer is made of a mixed material of the organic material and titanium dioxide; the organic material is one of 2, 3, 5, 6-tetrafluoro-7, 7, 8, 8, -tetracyano-benzoquinodimethane, 4, 4, 4-tri(naphthyl-1-phenyl-ammonio) triphenylamine and dinaphthyl-N, N'-diphenyl-4, 4'-benzidine. The scattering layer is additionally arranged in the structure of the organic electroluminescence device, so that the light-emitting efficiency and the luminous efficiency of the device can be improved. The invention also provides a manufacturing device of the organic electroluminescence device.

Description

technical field

[0001] The invention belongs to the field of organic electroluminescence, and in particular relates to an organic electroluminescence device and a preparation method thereof. Background technique

[0002] Organic electroluminescent devices (OLEDs) have a series of advantages such as low driving voltage, high luminous brightness, wide luminous viewing angle, ultra-thin and light weight, and easy mass production. The requirement of capacity, its broad application prospect and the rapid advancement of technology in recent years make OLED become a research hotspot in the field of flat panel information display.

[0003] In 1987, C.W.Tang and Van Slyke of Eastman Kodak Company in the United States reported a breakthrough in the research of organic electroluminescence. A high-brightness, high-efficiency double-layer organic electroluminescent device (OLED) has been prepared using ultra-thin film technology. Brightness up to 1000cd / m at 10V 2 , its luminous effic...

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