All-printed mesoscopic perovskite solar cell and preparation method thereof

A solar cell and perovskite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of poor process repeatability of mesoscopic perovskite solar cells, degradation of solar cell device performance, and difficult crystallization, etc., to achieve Good prospects for industrialization, solving poor repeatability and improving quality

Pending Publication Date: 2020-03-17
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of fully printed mesoscopic perovskite solar cell and preparation method thereof, by introducing polycarbonyl small molecule additives in perovskite precursor DMF:DMSO solution, improve the quality of perovskite film, fill The perovskite defects modify the perovskite grain boundaries, thereby improving the device performance of perovskite solar cells, solving the problem that the crystallization of perovskite thin film materials in mesopores is difficult to control, resulting in a decrease in the performance of solar cell devices, and solving the problem of Disadvantages of poor process repeatability and low efficiency of all mesoscopic perovskite solar cells

Method used

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  • All-printed mesoscopic perovskite solar cell and preparation method thereof
  • All-printed mesoscopic perovskite solar cell and preparation method thereof

Examples

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Embodiment 1

[0029] A cathode layer 1 , an electron transport layer 2 , a mesoporous layer 3 , a barrier layer 4 , and an anode layer 5 are sequentially printed on the upper surface of an ITO glass substrate. The thickness of the electron transport layer is 10nm, the thickness of the mesoporous layer is 200nm, the thickness of the barrier layer is 0.1um, and the thickness of the anode layer is 2um. The cathode layer is ITO. The electron transport layer is TiO 2 . The mesoporous layer is TiO 2 . The barrier layer is ZrO 2 , one of MgO. After the preparation is completed, the precursor solution of the perovskite film with a concentration of 2M and trimethylolpropane triacrylate added is drop-coated on the anode layer 5, and allowed to diffuse freely. After 30 minutes, the perovskite film is filled in the The mesoporous layer, the barrier layer and the anode layer were annealed at 250°C for 30 minutes to prepare a fully printed perovskite solar cell. The concentration of trimethylolpro...

Embodiment 2

[0032] A cathode layer 1, an electron transport layer 2, a mesoporous layer 3, a barrier layer 4, and an anode layer 5 are sequentially prepared on the upper surface of the FTO glass substrate. The electron transport layer has a thickness of 100nm, the mesoporous layer has a thickness of 2000nm, the barrier layer has a thickness of 5um, and the anode layer has a thickness of 30um. The cathode layer is FTO. The electron transport layer is SnO 2 , One of ZnO. The mesoporous layer is SnO 2 . The barrier layer is Al 2 o 3 . After the preparation is completed, a precursor solution with a concentration of 2M and a perovskite film added with pentaerythritol tetraacrylate is dropped on the anode layer 5 to allow it to diffuse freely. After 10 minutes, it is annealed at 100°C for 30 minutes. Fabricated fully printed perovskite solar cells. The concentration of pentaerythritol tetraacrylate in the precursor solution of the perovskite thin film is 30wt%. The perovskite film is F...

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Abstract

The invention discloses a full-printing mesoscopic perovskite solar cell. The solar cell is arranged on a substrate and comprises a cathode layer, an electron transport layer, a mesoporous layer, a barrier layer and an anode layer which are sequentially stacked on the substrate; the mesoporous layer, the barrier layer and the anode layer are filled with a perovskite thin film, and a polycarbonyl small molecule additive is introduced into a precursor solution of the perovskite thin film. The quality of the perovskite thin film is improved; perovskite defects are overcome, perovskite grain boundaries are modified, so that the device performance of the perovskite solar cell is improved, the problem that the performance of a solar cell device is reduced due to the fact that crystallization ofa perovskite thin film material in mesopores is difficult to control is solved, and the defects that a full-mesoscopic perovskite solar cell is poor in process repeatability and low in efficiency areovercome.

Description

Technical field: [0001] The invention relates to an all-printed mesoscopic perovskite solar cell and a preparation method thereof. Background technique: [0002] At present, the energy problem has become a bottleneck restricting economic development and a stumbling block to the quality of human living environment. The decline of traditional energy sources such as oil, coal mines, and natural gas, as well as the environmental pollution caused by their excessive use, have forced people to seek, develop and utilize new, renewable, and environmentally friendly green energy sources. In this context, new green energy sources such as solar energy, wind energy, biomass energy, water energy, and nuclear energy have attracted widespread attention. Among them, solar energy has a series of advantages such as huge reserves, green and harmless, and wide distribution, so it is favored by people. Solar cells can directly convert solar energy into electrical energy, and are a tool for effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/15H10K71/12H10K30/151Y02E10/549
Inventor 张坚刘建
Owner GUILIN UNIV OF ELECTRONIC TECH
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