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Method of producing barrier layer and carrier body comprising such barrier layer

A technology of a barrier layer and a main body is applied in the field of the preparation of the barrier layer and the carrier main body containing the barrier layer, and can solve the problems of inability to give

Inactive Publication Date: 2020-08-07
OSRAM OLED +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these materials suffer from long-term stability issues, and some of these materials exhibit shrinkage of up to 22% after deposition
Also, the combination of these two technologies, especially multilayer organic / inorganic superlattices, does not confer the advantages of each material but only combines the disadvantages
[0007] Therefore, regardless of the extreme precision in film deposition and the efficiency of ALD-produced layers as permeation barriers, if the substrate to which the ALD-deposited film is applied is rigid and does not impose mechanical bending during production or subsequent use, all The above membranes may only serve as effective permeation barriers

Method used

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  • Method of producing barrier layer and carrier body comprising such barrier layer
  • Method of producing barrier layer and carrier body comprising such barrier layer
  • Method of producing barrier layer and carrier body comprising such barrier layer

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Experimental program
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Embodiment approach 1

[0111] Embodiment 1. A method for preparing a barrier layer (22) in a polymer film (2), comprising the steps of:

[0112] A) providing a carrier body (1) comprising said polymer film (2) prepared from at least one polymer, said polymer film (2) forming a barrier interface (20) of said carrier body (1),

[0113] B) drying said barrier interface (20),

[0114] C) exposing the barrier interface (20) to one reactant gas (4), or to multiple reactant gases (4) that do not chemically react with each other, such that the at least one reactant gas (4) chemically reacting with said at least one polymer in at least one chemical reaction at least inside said polymer film (2) to form said barrier layer (22), and

[0115] D) Removing at least one product gas (5) of said at least one chemical reaction.

Embodiment approach 2

[0116] Embodiment 2. The method according to the preceding embodiment,

[0117] wherein step C) is carried out at a low first total pressure of at most 100 mbar,

[0118] wherein in step D) at least temporarily a lower second total pressure of at most 1 mbar is reached,

[0119] wherein steps C) and D) are carried out directly one after another in the reactor (3) and are repeated directly at least twice,

[0120] Wherein in step C), the barrier interface (20) is exposed to the reactant gas (4) having the first pressure for at least 1 second to enable the reactant gas (4) to diffuse into the polymer film (2), and

[0121] wherein said second pressure is applied in step D) for at least 2 seconds to enable diffusion of said at least one product gas (5) out of said polymer membrane (2).

Embodiment approach 3

[0122] Embodiment 3. The method according to embodiment 1,

[0123] wherein at least method steps C) and D) are carried out at a total pressure of at least 500 mbar,

[0124] wherein step C) is carried out at a low first partial pressure of said reactant gas (4) of at most 50 mbar,

[0125] wherein in step D) at least temporarily a lower second partial pressure of the product gas (5) of at most 1 mbar is achieved,

[0126] wherein steps C) and D) are carried out directly successively to each other and are repeated directly at least four times, and

[0127] In this case the total exposure time in all method steps C) amounts to at least 0.5 seconds.

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Abstract

The invention relates to a method for producing a barrier layer and to a carrier body comprising such a barrier layer. The method for producing a barrier layer (22) on a polymer film (2) comprises thefollowing steps of: A) providing a carrier body (1) comprising the polymer film (2) made of at least one polymer, wherein polymer film (2) forms a barrier interface (20) of the carrier body (1); B) drying the barrier interface (20); C) exposing the barrier interface (20) to a reactant gas (4) or to a plurality of reactant gases (4) that do not undergo a chemical reaction with each other so as toallow the at least one reactant gas (4) to chemically react with the at least one polymer at least inside the polymer film (2) in the form of at least one chemical reaction, thereby forming the barrier layer (22); and D) removing at least one product gas (5) of the at least one chemical reaction.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of July 24, 2014, an application number of "201480081542.4", and an invention title of "Preparation Method of Barrier Layer and Carrier Body Containing Such Barrier Layer". technical field [0002] Methods for preparing barrier layers are provided. Furthermore, a carrier body comprising such a barrier layer is provided. Background technique [0003] A wide variety of next-generation organic electronic devices are currently being pursued by academia and industry, including organic light-emitting diodes, or OLEDs for short, organic solar cells, organic transistors, and integrated circuits. The main technical hurdle still to be overcome is the creation of gas permeation barriers, especially for O 2 and H 2 O, where the barrier should be mechanically flexible and robust enough to withstand roll-to-roll production and a service life of about ten years. It is particularl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J7/12
CPCC08J5/18C08J7/12C08J2367/02
Inventor 弗兰克·福尔科默克劳斯-迪特尔·鲍尔于尔根·鲍尔马托·克内兹基思·格雷戈尔奇克
Owner OSRAM OLED
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