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A kind of perovskite LED device structure and preparation method thereof

A technology of LED device and perovskite, which is applied in the field of perovskite LED device structure and its preparation, can solve the problems of limited luminous color and narrow luminous peak range of perovskite materials, and achieve the effect of overcoming a very narrow range

Active Publication Date: 2022-04-08
GUANGDONG INST OF SEMICON IND TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, perovskite materials have a narrow range of luminescence peaks and limited luminescence colors.

Method used

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  • A kind of perovskite LED device structure and preparation method thereof
  • A kind of perovskite LED device structure and preparation method thereof

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0032] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a perovskite LED device structure and a preparation method thereof, and relates to the technical field of semiconductor light emitting devices. The preparation method of the perovskite LED device structure includes: sequentially depositing a hole injection layer and a hole transport layer on an anode electrode on a substrate; depositing a perovskite light-emitting layer on the hole transport layer, wherein the The perovskite light-emitting layer includes at least two materials of lead halide, cesium halide, and amine halide; an electron transport layer and a cathode electrode are sequentially deposited on the perovskite light-emitting layer. The structure of the perovskite LED device and its preparation method can adjust the luminescence peak and luminescence color of the perovskite material according to the demand.

Description

technical field [0001] The invention relates to the technical field of semiconductor light emitting devices, in particular to a perovskite LED device structure and a preparation method thereof. Background technique [0002] At present, perovskite light-emitting diode (English abbreviation: "PeLED") is a new type of light-emitting diode with great potential. Because perovskite materials have the advantages of simple synthesis, adjustable band gap, high photoluminescence quantum yield, and high color purity, they have great application potential in light-emitting devices. [0003] However, perovskite materials have a narrow range of luminescence peaks and limited luminescence colors. Therefore, how to adjust the luminous peak and luminous color of the perovskite material according to the demand is an urgent technical problem to be solved in the method of preparing the perovskite LED device. Contents of the invention [0004] The object of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/56H01L51/50H01L51/54
CPCH10K85/60H10K50/11H10K71/00
Inventor 王建太龚政陈志涛龚岩芬
Owner GUANGDONG INST OF SEMICON IND TECH