Manufacturing method for organic light emitting device with electron-transporting layer
A technology of organic light-emitting devices and electron transport layers, which is applied in the manufacture of semiconductor/solid-state devices, electric solid-state devices, electrical components, etc., and can solve the problems of insufficient light-emitting performance of light-emitting diodes, insufficient material efficiency, and complex preparation processes of flexible light-emitting diodes, etc. question
Inactive Publication Date: 2014-05-21
LIYANG JIANGDA TECH TRANSFER CENT
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Problems solved by technology
However, there are still some defects in the light-emitting diodes in the prior art, such as insufficient material efficiency of the hole injection layer and the electron transport layer, the preparation process of the flexible light-emitting diode is complicated, the cost is high, and the light-emitting performance of the prepared light-emitting diode cannot meet the needs, so It is hoped to develop an organic light-emitting diode with higher luminous efficiency, better performance, simple preparation process and low cost
Method used
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Embodiment Construction
[0041] In order to make those skilled in the art understand the technical solution of the present invention more clearly, the specific implementation manner thereof will be described below in conjunction with the accompanying drawings.
[0042] Such as figure 1 As shown, the light emitting diode of the present invention includes a substrate 1 , an anode 2 , an organic light emitting layer 3 , an electron transport layer 6 and a cathode 4 in sequence. in,
[0043] The substrate 1 may be a hard substrate or a flexible substrate. Hard substrates are preferably glass, ceramics, metal, etc.; flexible substrates are preferably polymer materials such as polyethylene terephthalate, plexiglass, etc.
[0044] The anode 2 is preferably made of indium tin oxide (ITO), and covered on the substrate by vacuum sputtering. The cathode 4 is preferably Ag conductive glue, and may also be Ag thin film or Ba / Al thin film.
[0045] The material of the electron transport layer 6 is an acrylic po...
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The invention discloses a manufacturing method for an organic light emitting device with an electron-transporting layer. The manufacturing method for the organic light emitting device with the electron-transporting layer is simple in fabrication process and low in costs, and a manufactured light-emitting diode has high light emitting efficiency. The manufacturing method for the organic light emitting device with the electron-transporting layers comprises sequentially preparing a substrate, an anode, an organic light emitting layer, the electron-transporting layer and a cathode. Polymers with high light emitting efficiency are used as the organic light emitting layer in the light-emitting diode of the manufacturing method, meanwhile, polymers which can excellently match with the organic light emitting layer are used as the electron-transporting layer, so that the light emitting performance of the light emitting diode is remarkably improved. Meanwhile, the fabrication process is simple and the manufacturing costs are low.
Description
technical field [0001] The invention relates to a method for manufacturing a light emitting device, in particular to a method for manufacturing a light emitting diode. Background technique [0002] Organic light-emitting devices, such as organic light-emitting diodes, have the characteristics of low material cost, low driving voltage, active light emission, wide viewing angle, and low energy consumption. It is widely used in high-resolution full-color flat-panel displays, and can also be used in polymer solar cells. [0003] When a forward bias is applied to both ends of the organic light-emitting diode, holes are injected from the anode into the valence band of the organic light-emitting layer and migrate to the cathode, and electrons are injected from the cathode into the conduction band of the organic light-emitting layer and migrate to the anode. Holes and electrons capture each other during the migration process and recombine into excitons. The electrons in the exciton...
Claims
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IPC IPC(8): H01L51/52H01L51/54H01L51/56
CPCH10K71/12
Inventor 张翠
Owner LIYANG JIANGDA TECH TRANSFER CENT