Perovskite photonic crystal, preparation method thereof, perovskite solar cell and preparation method of perovskite solar cell

A technology of solar cells and photonic crystals, applied in photovoltaic power generation, semiconductor/solid-state device manufacturing, circuits, etc., can solve the problem of low photoelectric conversion efficiency, achieve improved photoelectric conversion efficiency, good repeatability and stability, and simple preparation. Effect

Active Publication Date: 2017-01-04
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a perovskite photonic crystal and its preparation method, as well as a perovskite solar cell and its preparation method in order to overcome the low photoelectric conversion efficiency defect of existing perovskite solar cells

Method used

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  • Perovskite photonic crystal, preparation method thereof, perovskite solar cell and preparation method of perovskite solar cell
  • Perovskite photonic crystal, preparation method thereof, perovskite solar cell and preparation method of perovskite solar cell
  • Perovskite photonic crystal, preparation method thereof, perovskite solar cell and preparation method of perovskite solar cell

Examples

Experimental program
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Effect test

Embodiment 1

[0074] Mix 33% by weight of methylamine ethanol solution and 57% by weight of hydriodic acid aqueous solution according to the volume ratio of 12:5, stir and react for 4 hours at 0°C; then rotate and evaporate at 50°C to collect the product; The above-mentioned rotary steamed product was recrystallized and purified twice, and the recrystallization conditions included: dissolving the above-mentioned rotary steamed product in 60mL of ethanol, and then adding 250mL of diethyl ether; then filtered under reduced pressure to obtain powdered methyl ammonium iodide, at 60°C, vacuum Dry for 24 hours; prepare a mixed solution of 40% by weight in dimethylformamide with lead iodide and the methyl ammonium iodide prepared above according to a molar ratio of 1:1, stir at room temperature for 10 hours, and obtain a compound with a perovskite structure CH 3 NH 3 PB 3 precursor solution.

[0075] The transparent conductive substrate was ultrasonically cleaned in acetone, ethanol, and ultrap...

Embodiment 2

[0081] Mix 33% by weight of methylamine solution and 57% by weight of hydroiodic acid solution according to the volume ratio of 12:5, stir and react for 2 hours at 0°C; The rotary steamed product was recrystallized and purified twice. The recrystallization conditions included: dissolving the above rotary steamed product in 40mL of ethanol, and adding 200mL of ether; then filtered under reduced pressure to obtain powdery crystalline methyl ammonium iodide, at 60°C, vacuum Dry for 24 hours; prepare a mixed solution of 30% by weight in dimethylformamide with lead chloride and the above-mentioned methyl ammonium iodide according to a molar ratio of 1:3, stir at room temperature for 10 hours, and obtain a compound with a perovskite structure CH 3 NH 3 PB 2 Cl precursor solution.

[0082] The transparent conductive substrate was ultrasonically cleaned in acetone, ethanol, and ultrapure water for 10 min, and dried with nitrogen; treated with ultraviolet and ozone for 1 h before us...

Embodiment 3

[0088] Mix 33% by weight of methylamine ethanol solution and 57% by weight of hydrogen iodide solution according to the volume ratio of 12:5, stir and react for 6 hours at 0°C; The above-mentioned rotary steamed product was recrystallized and purified twice. The recrystallization conditions include: dissolving the above-mentioned rotary steamed product in 80mL of ethanol, and then adding 300mL of ether; then filtered under reduced pressure to obtain a white powder of methyl ammonium iodide, at 60°C, vacuum Dry for 24 hours; prepare a mixed solution of 40% by weight in dimethylformamide with lead bromide and the methylammonium iodide prepared above according to the molar ratio of 1:3, stir at room temperature for 10 hours, and obtain a compound with a perovskite structure CH 3 NH 3 I 2 Br precursor solution.

[0089]The transparent conductive substrate was ultrasonically cleaned in acetone, ethanol, and ultrapure water for 10 min, and dried with nitrogen; treated with ultrav...

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Abstract

The invention relates to the field of a photoelectric energy source, and discloses a perovskite photonic crystal, a preparation method thereof, a perovskite solar cell and a preparation method of the perovskite solar cell. The perovskite photonic crystal comprises a material providing a photonic crystal structure and a substance, wherein the substance is arranged in the material providing the photonic crystal structure and has a perovskite structure, and the material providing the photonic crystal structure is at least one of an electron transmission layer material, a hole transmission layer material and a support material. The perovskite solar cell comprises a transparent conductive substrate, a titanium dioxide compact layer, a perovskite photonic crystal layer, a hole transmission layer and a counter electrode. The perovskite photonic crystal obtained by the invention has the characteristics of highly ordered structure, high carrier transmission efficiency and low electron-hole combination; the perovskite solar cell obtained by the invention has the characteristics of high photoelectric conversion efficiency and high repeatability and stability; and moreover, the production process is simple, is low in cost and is suitable for mass production at a large scale.

Description

technical field [0001] The present invention relates to the field of optoelectronic energy, in particular to a perovskite photonic crystal, a method for preparing the perovskite photonic crystal, a perovskite photonic crystal prepared by the method, and a perovskite containing the perovskite photonic crystal Mineral solar cell, and the preparation method of the perovskite solar cell. Background technique [0002] Photonic crystals are a type of artificially designed and manufactured crystals with periodic dielectric structures on the optical scale. Development trends of optoelectronic devices and photonic integrated circuits. Because photonic crystals have a control effect on photons similar to that of semiconductors on electrons, they are also called "optical semiconductors". [0003] A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical reaction. The development of solar technology has rough...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K85/30H10K30/451Y02E10/549
Inventor 周雪李亚楠宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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