Chemical method for synthesizing perovskite type CH3NH3PbBr3 film material through in-situ large area control based on lead monomer film

A technology of ch3nh3pbbr3 and chemical method, which is applied in the direction of metal material coating process, etc.

Active Publication Date: 2016-03-02
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the current CH3NH3PbBr3The shortcomings of the film preparation process: the preparation process is complex, the crystallinity of the product is not high, and limited by the preparation conditions (such as spin coating), it is difficult to prepare and produce continuous films in a large area, and the device repeatability is poor. Provide A chemical method for in-situ large-area controlled synthesis of perovskite-type CH3NH3PbBr3 thin film materials based on metal lead single film

Method used

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  • Chemical method for synthesizing perovskite type CH3NH3PbBr3 film material through in-situ large area control based on lead monomer film
  • Chemical method for synthesizing perovskite type CH3NH3PbBr3 film material through in-situ large area control based on lead monomer film
  • Chemical method for synthesizing perovskite type CH3NH3PbBr3 film material through in-situ large area control based on lead monomer film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparatory work: Put the sailboat brand: CAT.NO.7101, ordinary glass slides in a vacuum of 6~7×10 -3 mbar DC magnetron sputtering a layer of metal lead elemental film with a thickness of about 200nm, and then put it in a desiccator for standby; wash the beaker with tap water and distilled water successively, and dry it for later use;

[0042] (2) Reaction steps: Prepare an anhydrous ethanol solution with a methylamine bromide concentration of 0.0056g / mL in a beaker, then place the beaker in a device with temperature control functions such as a biochemical incubator to keep the temperature at 25°C, and put the Put the glass substrate on the surface of the lead elemental film into the reaction solution, and react at 25°C for 1 hour;

[0043] (3) Post-treatment: After the reaction, close the biochemical incubator, take out the sample, and dry it in a blast drying oven at 70°C. Will get CH 3 NH 3 PbBr 3 Film material samples are carefully transferred to sample vial...

Embodiment 2

[0045] (1) Preparatory work: Put the sailboat brand: CAT.NO.7101, ordinary glass slides in a vacuum of 6~7×10 -3mbar DC magnetron sputtering a layer of metal lead elemental film with a thickness of about 200nm, and then put it in a desiccator for standby; wash the beaker with tap water and distilled water successively, and dry it for use;

[0046] (2) Reaction steps: Prepare an anhydrous ethanol solution with a methylamine bromide concentration of 0.0056g / mL in a beaker, and then place the beaker in a device with temperature control functions such as a biochemical incubator to keep the temperature at 25°C. Put the glass substrate on the surface of the lead element film into the reaction solution, and react at 25°C for 1.5 hours;

[0047] (3) Post-treatment: After the reaction, close the biochemical incubator, take out the sample, and dry it in a blast drying oven at 70°C. Will get CH 3 NH 3 PbBr 3 Film material samples are carefully transferred to sample vials and stored i...

Embodiment 3

[0049] (1) Preparatory work: Put the sailboat brand: CAT.NO.7101, ordinary glass slides in a vacuum of 6~7×10 -3 mbar DC magnetron sputtering a layer of metal lead elemental film with a thickness of about 200nm, and then put it in a desiccator for standby; wash the beaker with tap water and distilled water successively, and dry it for use;

[0050] (2) Reaction steps: Prepare an anhydrous ethanol solution with a methylamine bromide concentration of 0.0056g / mL in a beaker, and then place the beaker in a device with temperature control functions such as a biochemical incubator to keep the temperature at 25°C. Put the glass substrate on the surface of the lead elemental film into the reaction solution, and react at 25°C for 2.5 hours;

[0051] (3) Post-treatment: After the reaction, close the biochemical incubator, take out the sample, and dry it in a blast drying oven at 70°C. Will get CH 3 NH 3 PbBr 3 Film material samples are carefully transferred to sample vials and store...

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Abstract

The invention relates to a chemical method for synthesizing a perovskite type CH3NH3PbBr3 film material through in-situ large area control based on a lead monomer film. The lead monomer film is obtained on the surface of a substrate, the substrate material with the lead monomer film is horizontally soaked in an organic solution including bromination methylamine, and the CH3NH3PbBr3 film material can be obtained in situ through the constant-temperature reaction. According to the method, operation is simple, the spin coating process is not needed, the CH3NH3PbBr3 film can be obtained on a large area, and the problem of large-size device manufacturing is effectively solved. The obtained CH3NH3PbBr3 film is high in purity, even in film surface crystal, superior in crystallinity and low in energy consumption and manufacturing cost and has wide industrial application prospects.

Description

Technical field: [0001] The invention belongs to the technical field of material chemistry, and in particular relates to an in-situ large-area controlled synthesis of perovskite-type CH on different substrates based on the surface of metal lead. 3 NH 3 PbBr 3 Chemical approach to thin film materials. Background technique: [0002] As early as the last century, Mitzi and his colleagues first discovered and studied lead halide perovskite, which is mainly used as the emission layer of light-emitting diodes and field effect transistors. Other scientists have gradually discovered the unique optical properties of perovskite materials And electrical properties, such as photoluminescence, electroluminescence, third-order optical nonlinearity, etc., but perovskite materials have not been applied in solar cell devices. The main advantages of this type of material are as follows: (1) Due to the high charge carrier mobility and good light absorption performance of the inorganic com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/02
CPCC23C22/02
Inventor 郑直贺迎迎雷岩程佳美贾会敏何伟伟法文君刘松子
Owner XUCHANG UNIV
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