A kind of preparation method of large size single crystal perovskite thin film

A perovskite, large-scale technology, applied in semiconductor/solid-state device manufacturing, gaseous chemical plating, coating, etc., can solve the problems of small single crystal size, low electrical performance, and poor crystal quality of perovskite thin films. Achieve the effect of increasing size, low cost and simple structure

Active Publication Date: 2018-03-30
海南睿德医疗器械有限公司
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  • Description
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of low electrical properties caused by the small single crystal size and poor crystal quality of the perovskite film prepared in the prior art, and to provide a method for preparing a large-scale single crystal perovskite film

Method used

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  • A kind of preparation method of large size single crystal perovskite thin film
  • A kind of preparation method of large size single crystal perovskite thin film
  • A kind of preparation method of large size single crystal perovskite thin film

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specific Embodiment approach 1

[0033] Specific embodiment one: the preparation method of the large-size single-crystal perovskite film of the present embodiment is carried out according to the following steps:

[0034] 1. Treatment of the growth substrate: the growth substrate is initially treated to obtain the processed growth substrate; the growth substrate includes mica sheet, graphite sheet, graphene, molybdenum disulfide, molybdenum diselenide, molybdenum disulfide Tungsten, tungsten diselenide, tin selenide, stannous selenide or polymer films;

[0035] The processing method of the mica sheet substrate is as follows: use adhesive tape to uncover the surface layer to expose a new surface; , the processing method of tin selenide is: need adopt chemical vapor deposition method to grow out on the silicon dioxide surface; The spin-coating instrument uses a speed of 500-10000 rpm, spin-coats for 5-90 seconds, puts the polymer film obtained by spin-coating on a heating table, and bakes it at 80-200°C for 0.5-3...

specific Embodiment approach 2

[0037] Embodiment 2: This embodiment is different from Embodiment 1 in that the polymer film is polymethyl methacrylate film, polydimethylsiloxane film or polyamide film. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment is different from Embodiment 1 in that the organic precursor is methyl ammonium chloride, methyl ammonium iodide or methyl ammonium bromide. Other steps and parameters are the same as those in the first embodiment.

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Abstract

A method for preparing a large-scale single-crystal perovskite film. The invention relates to a method for preparing a large-scale single-crystal film, in particular to a method for preparing a large-scale single-crystal perovskite film. The object of the present invention is to solve the problem of low electrical performance caused by the small single crystal size and poor crystal quality of the perovskite film prepared in the prior art. The invention utilizes the organic precursor and the inorganic precursor, heats and evaporates to carry out the gas phase reaction, and prepares a large-size single-crystal perovskite thin film on the substrate. The preparation method can stably obtain a single-crystal perovskite film with large size and high crystal quality, and can precisely control the physical properties such as the size, thickness, and composition of the film; the large-size single-crystal perovskite film prepared by the present invention It can be used in flexible solar cells, laser devices, LED devices and the like.

Description

technical field [0001] The invention relates to a preparation method of a large-scale single-crystal film, in particular to a preparation method of a large-scale single-crystal perovskite film. Background technique [0002] With the development of human society, people's demand for energy is increasing day by day. At present, the world's energy is still dominated by traditional fossil energy, and the problems of resource depletion and environmental pollution caused by its use have become very prominent; whether it can find a renewable and clean energy has become a very urgent task for all countries. [0003] As a green, clean and renewable energy, solar energy is one of the important resources to solve the increasingly severe energy shortage and environmental pollution problems in the world. A solar cell refers to a type of photoelectric device that directly converts solar energy into DC power through the photoelectric effect or photochemical effect, and its core component ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01L51/44H01L51/42C23C16/44
CPCC23C16/44H10K71/00H10K30/87H10K30/80H10K30/00Y02E10/549H10K85/50
Inventor 张甲白学林周丽杰王振龙石琳
Owner 海南睿德医疗器械有限公司
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