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Substrate for flexible luminescent device and preparation method thereof

A light-emitting device and substrate technology, which is applied in the manufacture of semiconductor/solid-state devices, electric solid-state devices, semiconductor devices, etc., can solve the problems of poor bonding force between the conductive layer and the flexible substrate, poor surface flatness of the conductive layer, etc., and achieve simplified structure and the required materials, the effect of improving flatness and improving conductivity

Inactive Publication Date: 2011-10-05
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The problem to be solved by the present invention is: how to provide a flexible light-emitting device substrate and its preparation method, the substrate solves the problems of poor surface flatness of the conductive layer and poor bonding force between the conductive layer and the flexible substrate, and improves the conductivity The conductivity of the layer and the barrier ability of the substrate to water and oxygen

Method used

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  • Substrate for flexible luminescent device and preparation method thereof
  • Substrate for flexible luminescent device and preparation method thereof
  • Substrate for flexible luminescent device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] Such as figure 1 As shown in the substrate structure, the flexible substrate 1 adopts a free-radical UV-curable adhesive doped with an organic light-emitting material, the doping mass ratio of the organic light-emitting material is 1%, and the free-radical UV-curable adhesive includes 93% Resin, 3% monomer, 3% photoinitiator and 1% photosensitizer and auxiliary agent, conductive layer 2 adopts graphene film.

[0098] The preparation method is as follows:

[0099] ①Clean the copper foil with surface roughness less than 1nm, and dry it with dry nitrogen after cleaning;

[0100] ② The graphene film is prepared on a clean copper foil by chemical vapor deposition; the preparation conditions include: using methane as the carbon source, the growth environment of the chemical vapor deposition of the graphene film is: a room temperature of 700 ° C ~ 1000 ° C pressure or negative pressure;

[0101] ③The copper foil prepared with the graphene film is sprayed with a free-radical...

Embodiment 2

[0106] Such as figure 1 As shown in the substrate structure, the flexible substrate 1 adopts a free-radical UV-curable adhesive doped with an organic light-emitting material. Resin, 0.2% monomer, 0.1% photoinitiator and 0.2% photosensitizer and auxiliary agent, conductive layer 2 adopts graphene film.

[0107] The preparation method is similar to Example 1.

Embodiment 3

[0109] Such as figure 1 As shown in the substrate structure, the flexible substrate 1 adopts a free-radical UV-curable adhesive doped with an organic light-emitting material, the doping mass ratio of the organic light-emitting material is 15%, and the free-radical UV-curable adhesive includes 90% Resin, 2% monomer, 2% photoinitiator and 6% photosensitizer and auxiliary agent, conductive layer 2 adopts graphene film.

[0110] The preparation method is similar to Example 1.

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Abstract

The invention discloses a substrate for a flexible luminescent device, comprising a flexible substrate and a conductive layer. The substrate for the flexible luminescent device is characterized in that the conductive layer is a graphene film while the flexible substrate is an ultraviolet curing adhesive doped with an organic luminescent material, wherein the ultraviolet curing adhesive comprises a free radical type ultraviolet curing adhesive, a cationic ultraviolet curing adhesive and a mixed system of the free radical type ultraviolet curing adhesive and the cationic ultraviolet curing adhesive. According to the substrate, the problems of large roughness of the conductive layer and poor bonding force between the conductive layer and the flexible substrate are solved, the bonding force between the conductive layer and the flexible substrate is increased and the blocking capability of the substrate to water and oxygen is also improved.

Description

technical field [0001] The invention relates to the technical field of organic optoelectronics, in particular to a substrate for a flexible light-emitting device and a preparation method thereof. Background technique [0002] Optoelectronics technology is a rapidly developing industry with high technological content after microelectronics technology. With the rapid development of optoelectronic technology, optoelectronic products such as solar cells, optical image sensors, flat panel displays, and thin film transistors have gradually matured, and they have greatly improved people's lives. At the same time, the wide application of optoelectronic information technology in various fields of social life has also created a huge growing market. Developed countries regard the optoelectronic information industry as one of the key development areas, and the competition in the optoelectronic information field is unfolding worldwide. [0003] The wide application of organic materials...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/54C09J167/06C09J4/00C09J163/00H01L51/56
Inventor 蒋亚东于军胜李璐臧月
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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