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A kind of preparation method of perovskite battery

A perovskite battery and perovskite technology, which can be used in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of low efficiency of perovskite solar cells

Active Publication Date: 2022-08-02
储天新能源科技(长春)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problem of low efficiency of perovskite solar cells prepared by existing methods, and provides a preparation method of perovskite solar cells

Method used

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  • A kind of preparation method of perovskite battery
  • A kind of preparation method of perovskite battery
  • A kind of preparation method of perovskite battery

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preparation example Construction

[0033] The invention provides a preparation method of a perovskite battery, comprising the following steps:

[0034] 1) The transparent conductive glass was placed in ITO cleaning agent, deionized water, acetone, alcohol, and isopropanol in sequence for ultrasonic treatment for 30 minutes; then the cleaned conductive glass was pretreated with ultraviolet ozone for 30 minutes.

[0035] 2) Place the transparent conductive glass pretreated with ultraviolet and ozone in step 1) in a glue dispenser, and spin-coat Ti with a concentration of 1 mg / mL on the conductive glass 3 C 2 Colloidal solution, its spin coating speed is 2500rpm / min, and the time is more than 60 seconds until Ti 3 C 2 The film is thoroughly dried, and the conductive glass is removed after spin coating, and placed in a UV-ozone cleaning machine for UV-ozone treatment for 10-60min;

[0036] 3) Put the device that has completed the ultraviolet ozone treatment in step 2) into a nitrogen-filled glove box, and place ...

Embodiment 1

[0055] The etched ITO was ultrasonically treated with ITO cleaning agent, deionized water, acetone, alcohol, and isopropanol for 30 minutes in turn, and then the etched Ti was removed. 3 C 2 The colloid solution was adjusted to a solution concentration of 1.0 mg / mL. The ITO was pretreated with UV ozone for 30 minutes, and then placed on a glue spinner, and spin-coated Ti at a speed of 2500rpm / min. 3 C 2 (1.0mg / mL) colloidal solution for more than 60 seconds until Ti 3 C 2 The films were thoroughly dried, and then the substrates were placed in a UV-ozone cleaner for 0, 10, 30, and 60 minutes, respectively. Formulation of CH in a nitrogen glove box 3 NH 3 PbI 3 Precursor solution, 1.3Mol of PbI 2 (242mg) and 1.3Mol of CH 3 NH 3 I (83 mg) was dissolved in 408 μL of DMF / DMSO solution with a volume ratio of 4:1, and stirred at room temperature for 1 hour. The perovskite precursor solution was spin-coated on the electron transport layer in a glove box at a speed of 5000 r...

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Abstract

The invention relates to a preparation method of a high-efficiency perovskite battery, comprising the following steps: 1) pre-treat the cleaned transparent conductive glass with ultraviolet and ozone; Placed in a homogenizer, spin-coated Ti with a concentration of 1 mg / mL on conductive glass 3 C 2 colloidal solution, the spin coating speed is 2500rpm / min, and the time is 60 seconds. After the spin coating is finished, the conductive glass is removed, and placed in an ultraviolet ozone cleaning machine to carry out ultraviolet ozone treatment for 10-60min; 3) in the electron transport layer spin-coating a perovskite layer; 4) spin-coating a hole transport layer on the perovskite layer; 5) evaporating a metal anode on the hole transport layer. By improving the preparation process of the electron transport layer of the existing perovskite solar cell, the present invention finds the most suitable process conditions, including the concentration of the colloidal solution of the electron transport layer, the spin coating speed and time, and the ultraviolet ozone treatment time, etc. A high-efficiency perovskite solar cell was obtained with a photoelectric conversion efficiency as high as 17.17%.

Description

technical field [0001] The invention belongs to the technical field of preparation of perovskite solar cells, in particular to a preparation method of perovskite cells. Background technique [0002] Perovskite solar cells are generally composed of five parts: transparent conductive glass, electron transport layer, perovskite absorption layer, hole transport layer, and metal counter electrode. When exposed to sunlight, the perovskite layer first absorbs photons to generate electron-hole pairs. Due to the difference in the binding energy of excitons in perovskite materials, these carriers either become free carriers or form excitons. Then, the uncombined electrons and holes are collected by the electron transport layer and the hole transport layer, respectively, that is, electrons are transported from the perovskite layer to the electron transport layer, and finally collected by the transparent conductive glass; holes are transported from the perovskite layer to the holes Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K71/12H10K85/30H10K30/81H10K30/00Y02E10/549
Inventor 王晓峰杨霖于大明尤霆孟令军
Owner 储天新能源科技(长春)有限公司