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Electron transport layer of perovskite battery and preparation method thereof, perovskite battery

An electron transport layer, perovskite battery technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor stability, decomposition of perovskite materials, short battery life, etc. Reduce the effect of compounding

Active Publication Date: 2021-11-05
ASIA SILICON QINGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the poor stability of TiO2, ZnO, SnO2 and other metal oxides in the prior art as electron transport layer materials in the subsequent heat treatment process, which is easy to cause the decomposition of perovskite materials, so that the corresponding battery preparation rate is poor, The problem of short battery life provides an electron transport layer for a perovskite battery and a preparation method thereof, and a perovskite battery

Method used

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  • Electron transport layer of perovskite battery and preparation method thereof, perovskite battery
  • Electron transport layer of perovskite battery and preparation method thereof, perovskite battery

Examples

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Embodiment 1

[0029] like figure 1 Shown, in embodiment 1, a kind of electron transport layer preparation method of perovskite cell specifically comprises the following steps:

[0030] S01: Spin-coat the organic colloid dilution on the glass substrate, soft bake at 80°C for 40 minutes, and then pyrolyze at high temperature to obtain a transparent carbon film electrode;

[0031] S02: Dissolve the diazonium salt of the acceptor molecule in anhydrous acetonitrile to obtain an acetonitrile solution of the diazonium salt of the acceptor molecule; as a preference, add an auxiliary electrolyte, preferably 0.1M, to the acetonitrile solution of the diazonium salt of the acceptor molecule TBABF4 electrolyte.

[0032] S03: Put the transparent carbon film electrode into the acetonitrile solution of acceptor molecular diazonium salt and carry out electrochemical reaction, and the surface of the transparent carbon film electrode forms a dense molecular layer, that is, an electron transport layer.

[00...

Embodiment 2

[0046] This embodiment has the same inventive concept as that of Embodiment 1. On the basis of Embodiment 1, an electron transport layer of a perovskite battery is provided, including the electron transport layer of any option perovskite battery as described in Embodiment 1. The electron transport layer prepared by the transport layer preparation method.

Embodiment 3

[0048] This embodiment has the same inventive concept as Embodiment 1. On the basis of Embodiment 1, a perovskite battery electrode is provided, including preparation of an electron transport layer for any option perovskite battery as described in Embodiment 1. The transparent carbon thin film electrode prepared by the method can obtain an electron transport layer with high flatness based on the transparent carbon thin film electrode.

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Abstract

The invention discloses an electron transport layer of a perovskite battery, a preparation method thereof, and a perovskite battery, which belong to the technical field of solar battery preparation and production. High-temperature pyrolysis to obtain a transparent carbon film electrode; dissolving the diazonium salt of the acceptor molecule in anhydrous acetonitrile to obtain an acetonitrile solution of the diazonium salt of the acceptor molecule; placing the transparent carbon film electrode into the acetonitrile solution of the diazonium salt of the acceptor molecule Electrochemical reaction is carried out in the medium, and the surface of the transparent carbon thin film electrode forms a dense molecular layer, that is, an electron transport layer. The present invention adopts organic colloid pyrolysis to obtain a transparent carbon film electrode. The carbon electrode has a super high surface smoothness. Based on the carbon electrode, a dense acceptor molecular layer is prepared as an electron transport layer by a diazonium salt electrochemical reduction method. The acceptor molecule and carbon The electrodes are bonded by covalent bonds, so they are stable and not easy to decompose.

Description

technical field [0001] The invention relates to the technical field of solar cell preparation and production, in particular to an electron transport layer of a perovskite battery, a preparation method thereof, and a perovskite battery. Background technique [0002] Human beings have long discovered that the continuous development of society requires energy, and the contradiction between the limited traditional fossil energy is becoming more and more prominent. In addition, the energy structure that is overly dependent on fossil resources has also brought many problems such as air pollution and global warming to the living environment. As an inexhaustible clean energy, solar energy has received extensive research attention from domestic and foreign institutions and enterprises. In addition to photothermal conversion, photoelectric conversion is another major form of solar energy utilization, of which solar cells are the main components. After solar cells experienced the fir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCY02E10/549Y02P70/50
Inventor 林方兴张婧徐丽丽何贵福任喜晶吴巧芸宗冰
Owner ASIA SILICON QINGHAI