Ink for preparing luminous layer, preparation method and application

A light-emitting layer and ink technology, applied in applications, organic light-emitting devices, inks, etc., can solve the problems of unsuitable miniaturization operation, complicated light-emitting layer preparation process and high cost

Active Publication Date: 2017-08-18
SHANGHAI MI FANG ELECTRONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation process of the existing light-emitting layer is relatively complicated, and requires large-scale equipment, the cost is high, and it is not suitable for miniaturization operation

Method used

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  • Ink for preparing luminous layer, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The second aspect of the present disclosure: provides a method for preparing an ink for making a light-emitting layer of a flexible light-emitting electrochemical cell device, including: a transition metal complex, 1-butyl-3-methylimidazolium hexafluorophosphate and polymerized Additives are mixed with organic solvents to obtain ink; wherein, the concentration of transition metal complexes in the ink is 20-80mg / mL, and the concentration of 1-butyl-3-methylimidazolium hexafluorophosphate is 2-8mg / mL mL, the concentration of the polymer additive is 4-16mg / mL; preferably, the concentration of the transition metal complex in the ink is 30-50mg / mL, 1-butyl-3-methylimidazolium hexafluorophosphate The concentration of the polymer additive is 2-5mg / mL, and the concentration of the polymer additive is 6-10mg / mL.

[0031] According to the second aspect of the present disclosure, 1-butyl-3-methylimidazolium hexafluorophosphate functions as an ion conductor in the light emitting la...

Embodiment 1

[0044] Weigh 40mg tris(2,2'-bipyridyl)ruthenium hexafluorophosphate and 3.4mg 1-butyl-3-methylimidazolium hexafluorophosphate and transfer to 5mL reagent bottle A, measure 1mL N,N -Add dimethylformamide into the reagent bottle and stir to dissolve.

[0045] Weigh 25 mg of polyethylene oxide (weight average molecular weight: 20,000) into a reagent bottle, measure 1 mL of N,N-dimethylformamide into reagent bottle B, and stir to dissolve.

[0046] The solutions in reagent bottle A and reagent bottle B were mixed at a volume ratio of 3:1, stirred, ultrasonicated at 20 kHz for 5 min, and then filtered with a 0.22 μm filter head to obtain ink. The specific composition is shown in Table 1.

[0047] Put the ink into the ink cartridge, and use the inkjet printer to eject ink droplets stably. The specific performance of the ink is shown in Table 2. The luminescent layer made of this ink can meet the use standard.

Embodiment 2-4

[0049] The preparation steps of Example 2-4 are basically the same as that of Example 1. The specific composition is shown in Table 1, and the specific performance of the ink is shown in Table 2. The luminescent layer made by using the ink prepared in Example 2-4 can meet the use standard.

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Abstract

The invention relates to ink for preparing a luminous layer of a flexible luminous electrochemical battery device and a preparation method and application of the ink. The ink for preparing a luminous layer of a flexible luminous electrochemical battery device is prepared from a transition metal complex, 1-butyl-3-methyl imidazole hexafluorophosphate, a polymer additive and an organic solvent, wherein the concentration of the transition metal complex in the ink is 20-80mg/mL; the concentration of the 1-butyl-3-methyl imidazole hexafluorophosphate is 2-8mg/mL; the concentration of the polymer additive is 4-16mg/mL. By use of the ink for preparing the luminous layer of the flexible luminous electrochemical battery device provided by the invention, printing of the luminous layer can be realized.

Description

technical field [0001] The disclosure relates to the technical field of organic light-emitting thin film devices, and in particular, relates to an ink for making a light-emitting layer of a flexible light-emitting electrochemical cell device, a preparation method thereof, and an application and the light-emitting layer. Background technique [0002] Traditional organic light-emitting diode (OLED) devices mainly include organic small molecule light-emitting diodes and polymer light-emitting diodes. Compared with inorganic light-emitting diodes, the light-emitting mechanism of organic light-emitting electrochemical cells (OLECs) is different, so that it has some unique advantages, such as lower operating voltage, higher electron / photon conversion efficiency and higher power efficiency, etc. . More importantly, organic light-emitting electrochemical cells do not require materials with low work function as cathodes, and these low work function electrode materials are often unst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/102C09D11/107C09D11/106C09D11/30C09D11/38H01L51/50H01L51/54
CPCC09D11/03C09D11/102C09D11/106C09D11/107C09D11/30C09D11/38H10K85/10H10K85/111H10K50/135H10K50/00H10K2102/00H10K2102/301
Inventor 李胜夏蓝河
Owner SHANGHAI MI FANG ELECTRONICS LTD
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