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Preparation method of novel organic lead source-based perovskite solar cell

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of high energy consumption and cost, and achieve the effect of overcoming high cost, low cost and promoting large-scale production.

Active Publication Date: 2017-11-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a method for preparing the light-absorbing layer of perovskite solar cells based on a new organic lead source, which solves the energy consumption of the existing lead source for preparing the light-absorbing layer of perovskite solar cells The problem of high cost is conducive to the industrialization of perovskite solar cells

Method used

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  • Preparation method of novel organic lead source-based perovskite solar cell
  • Preparation method of novel organic lead source-based perovskite solar cell
  • Preparation method of novel organic lead source-based perovskite solar cell

Examples

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Effect test

Embodiment 1

[0030] The preparation method of the perovskite solar cell specifically includes the following steps:

[0031] Step 1: Clean the substrate:

[0032] In this embodiment, FTO conductive glass is selected as the substrate, that is, fluorine-doped tin dioxide (SnO2:F). The present invention does not limit the choice of substrate material, and it can be any suitable substrate material;

[0033] First, use detergent and nano sponge to clean the FTO conductive glass, and then use deionized water to rinse several times. The rinsed substrate is ultrasonically treated with acetone, ethanol, and deionized water as the solvent. The later FTO conductive glass is blown dry with nitrogen, and then treated with oxygen plasma to enhance the bonding force and adhesion of the substrate material surface;

[0034] Step 2: Preparation of electron transport layer:

[0035] TiO is used in this embodiment 2 The thin film serves as the electron transport layer. The present invention does not limit the selection...

Embodiment 2

[0054] According to the preparation process and preparation adjustment described in Example 1, a perovskite solar cell with an effective active area of ​​1 square centimeter was prepared. The solar cell prepared in this example was placed in a dark place for a period of time and then analyzed and tested. Standard simulated sunlight AM1.5, 30% air humidity, temperature 25℃ test; such as Figure 5 Shown is the current density-voltage curve of the perovskite solar cell of this embodiment. According to this current density-voltage curve, the photovoltaic performance parameters of the solar cell of this embodiment are obtained as follows: the short-circuit current density is 18.7mA / cm 2 , Open circuit voltage 1.099V, fill factor 0.51, conversion efficiency 10.5%.

Embodiment 3

[0056] The preparation method of the perovskite solar cell specifically includes the following steps:

[0057] Step 1: Clean the substrate:

[0058] In this embodiment, FTO conductive glass is selected as the substrate, that is, fluorine-doped tin dioxide (SnO2:F). The present invention does not limit the choice of substrate material, and it can be any suitable substrate material;

[0059] First, use detergent and nano sponge to clean the FTO conductive glass, and then use deionized water to rinse several times. The rinsed substrate is ultrasonically treated with acetone, ethanol, and deionized water as the solvent. The later FTO conductive glass is blown dry with nitrogen, and then treated with oxygen plasma to enhance the bonding force and adhesion of the substrate material surface;

[0060] Step 2: Preparation of electron transport layer:

[0061] TiO is used in this embodiment 2 The thin film serves as the electron transport layer. The present invention does not limit the selection...

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Abstract

The invention discloses a preparation method of a novel organic lead source-based perovskite solar cell, and belongs to the field of solar cells. CH3NH3PbI3 is synthesized from formic acid and methyl ammonium iodide by a solution method and is used as a light absorption layer of the solar cell. By the preparation method, the lead source is relatively low in purity requirement, is relatively easy to obtain and is low in cost; the test shows that the perovskite solar cell prepared by the process is relatively high in photoelectric conversion efficiency, and the optimal efficiency can reach 18.4%; and compared with the prior art, the perovskite solar cell has the advantages of low energy consumption, low cost and high efficiency and is easy to prepare on a large scale, the commercial step of the perovskite solar cell is favorably accelerated, and the mass production of the perovskite solar cell is promoted.

Description

Technical field [0001] The invention belongs to the technical field of solar cells, and specifically relates to a method for preparing a perovskite solar cell based on a new organic lead source. Background technique [0002] Nowadays, non-renewable energy represented by fossil energy such as petroleum, coal, natural gas, etc., are increasingly unable to meet people's demand for clean and renewable energy due to factors such as limited reserves, high development costs and easy environmental pollution during use. Compared with fossil energy, solar energy is hailed as the new energy with the greatest potential to replace fossil energy in the future due to its abundant storage capacity, environmental protection and low price. The use of solar power technology to meet the needs of sustainable development of environmental energy has become a research focus in this field. [0003] The basic working principle of solar cells is to use organic or inorganic semiconductor photosensitive mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/12H10K30/151Y02E10/549Y02P70/50
Inventor 刘明侦顾锦文谢毅然李发明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA