Composite multifunctional OLED electrode and preparation method thereof

A multi-functional, electrode technology, applied in the direction of circuits, electrical components, electrical solid devices, etc., can solve the problems of metal nanowires that are difficult to balance light transmission and conductivity, achieve good hole/electron injection capabilities, and solve light transmission problems. properties and electrical conductivity, and the effect of reducing manufacturing costs

Inactive Publication Date: 2018-09-28
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves the problem that it is difficult to balance the light transmittance and conductivity of metal nanowires prepared by traditional methods, and adopts a non-vacuum preparation method, which can greatly reduce the current manufacturing cost of OLED electrodes

Method used

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  • Composite multifunctional OLED electrode and preparation method thereof
  • Composite multifunctional OLED electrode and preparation method thereof
  • Composite multifunctional OLED electrode and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0030] figure 1 It is a schematic structural diagram of a composite multifunctional OLED electrode according to an embodiment of the present invention,

[0031] Such as figure 1 As shown, the composite multifunctional OLED electrode provided by the embodiment of the present invention includes a flexible substrate 1 and a metal nanowire-photoelectric polymer hybrid layer 2 grown on the flexible substrate; the metal nanowire-photoelectric polymer hybrid layer includes Metal nanowires 21 and optoelectronic polymer materials 22; spin coating a layer of optoelectronic polymer materials 22 on the metal nanowires 21, so that the optoelectronic polymer materials 22 fill the gaps between the metal nanowires 21 Inside.

[0032] Preferably, the metal nanowires 21 are silver nanowires with a diameter of 80 nm and a length of 5 μm. The optoelectronic polymer material 22 is poly 2-(2-ethylhexyloxy)-5-methoxyphenyl acetylene solution, referred to as MEH-PPV solution in English, and the op...

Embodiment 3

[0041] image 3 It is a schematic diagram of the preparation process of the composite electrode based on the silver nanowire electrode and the photoelectric polymer material MEH-PPV according to the embodiment of the present invention, as image 3 As shown, the embodiment of the present invention provides a method for preparing a composite electrode based on a silver nanowire electrode and an optoelectronic polymer material MEH-PPV, including:

[0042] First, silver nanowires with a particle diameter of 80 nm and a length of 50 μm are dispersed in an ethanol solution to form a silver nanowire solution, and the mass fraction of the ethanol solution is 1 wt%.

[0043] Secondly, the silver nanowire solution was spin-coated on the flexible PET substrate, and the average film thickness was controlled at about 200nm, followed by annealing at 100°C for 20 minutes.

[0044] Furthermore, the MEH-PPV solution is spin-coated on the silver nanowire film, the solvent is toluene, the film ...

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Abstract

The invention discloses a composite multifunctional OLED electrode and a preparation method thereof. The composite multifunctional OLED electrode comprises a flexible substrate and a metal nanometer wire-photoelectric polymer mixing layer growing on the flexible substrate, wherein the metal nanometer wire-photoelectric polymer mixing layer comprises metal nanometer wires and photoelectric polymermaterial, a layer of photoelectric polymer material is spin-coated on the metal nanometer wires, so that the photoelectric polymer material is filled into gaps among the metal nanometer wires. According to the composite multifunctional OLED electrode and the preparation method thereof provided by the invention, the metal nanometer wires are embedded into the soft and thick photoelectric polymer material to form the composite multifunctional OLED electrode with good transparent conductive property and cavity/electron injection capacity, the problem that the nanometer wire prepared by the traditional method is difficult to synchronous achieve good light transparency and conductivity is solved, and the non-vacuum preparation method is used, so that the manufacturing cost of the current OLED electrode can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of transparent conductive electrodes, in particular to a composite multifunctional OLED electrode based on metal nanowires and optoelectronic polymer materials and a preparation method thereof. Background technique [0002] Metals are widely prepared as electrodes for organic electronic and optoelectronic devices due to their extremely high electrical conductivity, but bulk or thin-film metals are usually opaque, which limits the use of metals as transparent conductive electrodes. In order to solve the problem of opacity of the metal thin film, the researchers found that the metal grid structure and the metal nanowire grid can solve the above problem. Metal grids are usually in the form of two-dimensional grids or hexagonal grids, deposited by thermal evaporation, patterned by photolithography or printed. Since the voids in the metal network are almost 100% transparent, the transmittance of the metal grid f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K71/60H10K50/81H10K50/828H10K71/00
Inventor 唐振宇陈旻彧赵艺凌志天杨佳丽魏斌李春亚
Owner SHANGHAI UNIV
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