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Nanometer particle film used for flexible perovskite solar cell and manufacturing method thereof, and the flexible perovskite solar cell

A solar cell and nanoparticle technology, applied in the field of solar cells, can solve the problems of limiting the application of flexible perovskite solar cells, deterioration of cell stability and open circuit voltage, poor stability of organic electron transport layers, etc., and achieve excellent light spot conversion performance, improved stability, low cost

Active Publication Date: 2017-11-07
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first is to use organic electron transport layer materials, but the stability of the organic electron transport layer is poor, and the energy level matching is poor, which will lead to poor stability and open circuit voltage of the battery.
Secondly, the use of inorganic electron transport layer materials generally requires high-temperature calcination to obtain a uniform and dense film, which limits its application in flexible perovskite solar cells that cannot withstand high temperatures.

Method used

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  • Nanometer particle film used for flexible perovskite solar cell and manufacturing method thereof, and the flexible perovskite solar cell
  • Nanometer particle film used for flexible perovskite solar cell and manufacturing method thereof, and the flexible perovskite solar cell

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Embodiment 1

[0035] A method for preparing a nanoparticle film for an electron transport layer of a flexible perovskite solar cell, the method comprising the following steps:

[0036] (1) Using TiCl 4 Solution soaked TiO 2The nanoparticles are pretreated to obtain pretreated nanoparticles;

[0037] (2) ultrasonically dispersing the nanoparticles obtained in step (1) in ethanol to obtain a nanoparticle dispersion;

[0038] (3) The nanoparticle dispersion is spin-coated into a thin film, and the solvent is dried to obtain TiO 2 Nanoparticle films.

[0039] A flexible perovskite solar cell, comprising: a flexible PEN film substrate, and depositing ITO on the substrate as a conductive layer, depositing the TiO prepared above on the above-mentioned ITO conductive layer 2 A thin film made of nanoparticles is used as an electron transport layer, on which a perovskite material is deposited as a light absorbing layer, then Spiro-OMeTAD is deposited as a hole transport layer, and finally metal A...

Embodiment 2

[0041] A method for preparing a nanoparticle film for an electron transport layer of a flexible perovskite solar cell, the method comprising the following steps:

[0042] (1) Using SnCl 4 Solution soaked SnO 2 The nanoparticles are pretreated to obtain pretreated nanoparticles;

[0043] (2) ultrasonically dispersing the nanoparticles obtained in step (1) in isopropanol to obtain a nanoparticle dispersion;

[0044] (3) The nanoparticle dispersion liquid is screen-printed into a thin film, and the solvent is dried to obtain the SnO 2 Nanoparticle films.

[0045] A flexible PEN film substrate, and deposit ITO on the substrate as a conductive layer, and deposit the above-mentioned prepared SnO on the above-mentioned ITO conductive layer 2 A thin film made of nanoparticles is used as an electron transport layer, on which a perovskite material is deposited as a light absorbing layer, then Spiro-OMeTAD is deposited as a hole transport layer, and finally metal Ag is deposited as a...

Embodiment 3

[0047] A method for preparing a nanoparticle film for an electron transport layer of a flexible perovskite solar cell, the method comprising the following steps:

[0048] (1) Use ZnCl 2 Soaking the ZnO nanoparticles in the solution for pretreatment to obtain pretreated nanoparticles;

[0049] (2) ultrasonically dispersing the nanoparticles obtained in step (1) in methylene chloride to obtain a nanoparticle dispersion;

[0050] (3) Ink-jet printing the nanoparticle dispersion into a thin film, and drying the solvent to obtain a ZnO nanoparticle film.

[0051] A flexible PEN film substrate, and deposit ITO on the substrate as a conductive layer, deposit a thin film made of ZnO nanoparticles prepared above on the above-mentioned ITO conductive layer as an electron transport layer, and deposit a perovskite material on this basis as a light-absorbing layer. layer, then deposited Spiro-OMeTAD as a hole transport layer, and finally deposited metal Ag as a counter electrode.

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Abstract

The invention relates to a manufacturing method of a nanometer particle film used for a flexible perovskite solar cell. The method comprises the following steps of using a precursor solution containing chlorine to soak nanometer particles so as to carry out preprocessing, and acquiring the preprocessed nanometer particles; dispersing the acquired nanometer particles in a solvent and acquiring a nanometer particle dispersion liquid; and depositing the nanometer particle dispersion liquid into a film, drying the solvent and acquiring the nanometer particle film. By using the manufacturing method, under a low temperature, a compacted film can be acquired. And the method is suitable for perovskite solar cell manufacturing on various kinds of flexible substrates. The nanometer particle film is used for the flexible perovskite solar cell and stability of the solar cell can be increased. Simultaneously, the flexible perovskite solar cell possesses excellent photoelectric conversion efficiency.

Description

technical field [0001] The invention belongs to the field of solar cells, and relates to a flexible perovskite solar cell, in particular to a method for mechanically preparing a nanoparticle thin film for a flexible perovskite solar cell. Background technique [0002] In the development of modern society, resource scarcity and environmental crisis have always been the bottleneck restricting the development of all countries. Therefore, countries all over the world are turning their attention to clean and renewable energy. As a renewable energy source, solar energy has become the focus of people because of its unique advantages. The application and storage of solar energy has received extensive attention, among which solar cells have been extensively studied due to their advantages of abundant sources, cleanliness and high efficiency. As the latest generation of solar cells, perovskite solar cells have seen a 6-fold increase in photoelectric conversion efficiency from 3.8% t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/42
CPCH10K71/12H10K30/152H10K30/151H10K30/10Y02E10/549
Inventor 徐保民刘畅佘苏扬高集舒
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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