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A preparation method of a micro-nano composite structure that improves the light-emitting efficiency of a light-emitting device

A technology of micro-nano composite structure and light extraction efficiency, which is applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., to achieve the effect of simple application and simple process

Active Publication Date: 2021-03-30
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem of the light extraction efficiency of the existing display and lighting devices, the present invention utilizes the characteristics that the atomic layer deposition reactants can penetrate into the polymer pores under the pressure-holding condition of the cavity, and combines the characteristics of the uneven stress distribution of the film layer to produce micro-nano structures , propose a preparation method of micro-nano composite structure to improve the light-emitting efficiency of light-emitting devices, and improve the light-emitting efficiency of light-emitting devices

Method used

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  • A preparation method of a micro-nano composite structure that improves the light-emitting efficiency of a light-emitting device
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  • A preparation method of a micro-nano composite structure that improves the light-emitting efficiency of a light-emitting device

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[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0030] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention relates to a method for preparing a micro-nano composite structure that improves the light-emitting efficiency of a light-emitting device. Firstly, polymers and substrates with different thermal expansion coefficients are heated to cause different degrees of thermal expansion; then, the atomic layer deposition method is used. Inorganic materials are filled inside the holes on the surface layer of the polymer. During the cooling process, the polymer shrinks to cause the surface layer to bulge, forming a micro-nano wrinkle pattern; finally, the micro-nano composite structure is used in light-emitting display devices to change the light-emitting display device. The light propagation path improves the light extraction efficiency of the device.

Description

technical field [0001] The invention relates to the field of optoelectronic devices, in particular to a method for preparing a micro-nano composite structure for improving the light extraction efficiency of a light-emitting device. Background technique [0002] For display and lighting devices, improving the light extraction efficiency of the device is the key to affecting the performance of the device, which has attracted much attention from the scientific and industrial circles. During the transmission process of the light generated inside the light-emitting device, due to the influence of total reflection and interference effects, the light is confined in the internal functional layer or substrate, which not only reduces the light output efficiency of the light-emitting device, but also accumulates a large amount of heat inside the device, which is extremely Greatly affect the life of the device. [0003] In order to improve the efficiency of outcoupling light, so that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L33/44B82Y30/00B82Y40/00
CPCH01L33/44B82Y30/00B82Y40/00H10K50/85
Inventor 周雄图陈桂雄郭太良张永爱吴朝兴林志贤严群
Owner FUZHOU UNIV
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