Perovskite solar cell electronic transmission layer and preparation method thereof

An electron transport layer, solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., to achieve the effects of uniform morphology, simple process and process, and wide adjustable range of parameters

Inactive Publication Date: 2016-10-12
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One-dimensional TiO 2 , ZnO and other nanomaterials as the preparation method of the dense layer of the perovskite battery, there are few reports at present; and there is no report on the preparation method of the one-dimensional ZnO nanorod ordered array as the electron transport layer.

Method used

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  • Perovskite solar cell electronic transmission layer and preparation method thereof
  • Perovskite solar cell electronic transmission layer and preparation method thereof

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Embodiment 1

[0036] This embodiment provides a method for preparing an electron transport layer of a perovskite solar cell, comprising the following steps:

[0037] (1) Cleaning steps for conductive glass: wash with soap solution for 15 minutes, rinse with pure water, ultrasonically clean with acetone for 15 minutes, ultrasonically for 15 minutes with ethanol, blow dry with nitrogen, and then clean with an oxygen plasma cleaner for 15 minutes;

[0038] (2) Weigh 0.297g zinc nitrate hexahydrate (a kind of zinc nitrate) and dissolve it in 100ml deionized water, stir at 65°C to form a zinc nitrate solution with a concentration of 0.01 mol / liter;

[0039] (3) At constant temperature, weigh 0.56g of hexamethylenetetramine and dissolve it in 100ml of deionized water to form a hexamethylenetetramine solution with a concentration of 0.04 mol / liter, and then add it dropwise to step (2) within 15 minutes in the resulting solution;

[0040] (4) the cleaned conductive glass is placed in the container...

Embodiment 2

[0043] Such as figure 1 , figure 2 As shown, the present embodiment provides a method for preparing an electron transport layer of a perovskite solar cell, comprising the following steps:

[0044] (1) Cleaning steps of conductive glass: After rinsing with pure water, use acetone, isopropanol, and pure water in a ratio of 1:1:1 to sonicate for 15 minutes. After drying with nitrogen, put it into a solution of concentrated sulfuric acid / hydrogen peroxide 3:1. Hydrophilic treatment, followed by rinsing with pure water, ultrasonic cleaning with ethanol, and drying with nitrogen;

[0045] (2) Weigh 1.485g zinc nitrate hexahydrate and dissolve it in 100ml deionized water, stir at 65°C to form a zinc nitrate solution with a concentration of 0.05 mol / liter;

[0046] (3) Under constant temperature, weigh 0.12g sodium hydroxide and dissolve in 100ml deionized water to form a sodium hydroxide solution with a concentration of 0.3 mol / liter, then add dropwise in the solution obtained in ...

Embodiment 3

[0052] This embodiment provides a method for preparing an electron transport layer of a perovskite solar cell, comprising the following steps:

[0053] (1) Cleaning steps of conductive glass: wash with soap solution for 20 minutes, rinse with pure water, ultrasonically clean with acetone for 20 minutes, ultrasonically for 20 minutes with ethanol, blow dry with nitrogen, and then clean with an oxygen plasma cleaner for 20 minutes;

[0054] (2) Weigh 0.549g zinc acetate and dissolve it in 100ml deionized water, stir at 65°C to form a zinc acetate solution with a concentration of 0.03 mol / liter;

[0055] (3) At a constant temperature, weigh 0.842g potassium hydroxide and dissolve it in 100ml deionized water to form a potassium hydroxide solution with a concentration of 0.15 mol / liter, and then add it dropwise within 15 minutes;

[0056] (4) Put the cleaned conductive glass in the container containing the mixed solution obtained in step (3), lean the conductive glass against the w...

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Abstract

The invention provides a perovskite solar cell electronic transmission layer and a preparation method thereof. The preparing method includes the steps of cleaning electro-conductive glass, dissolving a zinc source in deionized water, stirring at a temperature of 60-70 DEG C to obtain solution A, adding aqueous alkali in the solution A drop by drop under constant temperature to obtain a solution B, placing clean electro-conductive glass in the solution B with the electro-conductive glass inclining on a container wall and the conducting surface facing downwards, placing at a 60-70 DEG C environment for two to four hours, cooling to the room temperature, cleaning the surface of the electro-conductive glass with deionized water to obtain a target perovskite cell zinc oxide nanorod ordered array electronic transmission layer. The diameter of the nanorod is 50-100nm, and the length thereof is 2-3 micrometers. The target perovskite cell zinc oxide nanorod ordered array electronic transmission layer is uniform in appearance, high in purity and stability, and can be formed in batch on electro-conductive glass substrate. The preparation method has the advantages of simple process and flow, wide parameter adjustable scope, high repeatability and low cost.

Description

technical field [0001] The invention relates to the technical field of inorganic nanometer materials and synthesis, in particular to an electron transport layer of a perovskite solar cell and a preparation method thereof. Background technique [0002] In the field of solar cell research, perovskite solar cells have great application potential as a new type of solar cell, and the photoelectric conversion efficiency has increased from the initial 2% to the current 22%. Perovskite materials have excellent comprehensive properties, and can simultaneously complete multiple processes such as the absorption of incident light, the excitation, transport, and separation of photogenerated carriers. The extinction coefficient is high and the band gap width is appropriate, and electrons and holes can be transported simultaneously. . Perovskite solar cells have a simple structure and can be fabricated at low temperatures under mild conditions. [0003] The current obstacles to the large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44
CPCH10K30/80H10K30/00H10K2102/00Y02E10/549
Inventor 何丹农杜以博林琳徐少洪
Owner SHANGHAI JIAO TONG UNIV
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