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Perovskite solar cell structure and preparation method thereof

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of complex cell preparation process, limit the development of perovskite solar cells, and increase costs, achieve good electron transmission effect, compact structure, and avoid high temperature sintering Effect

Active Publication Date: 2016-02-17
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-temperature sintering technology complicates the cell preparation process and increases the cost, which severely limits the development of perovskite solar cells under the prospect of commercialization of perovskite thin film cells.

Method used

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  • Perovskite solar cell structure and preparation method thereof
  • Perovskite solar cell structure and preparation method thereof
  • Perovskite solar cell structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation method of perovskite solar cell structure in the present embodiment comprises the following steps:

[0035] (1) Clean the FTO conductive glass substrate with detergent earlier, then immerse the FTO conductive glass substrate after cleaning in the polydiallyldimethylammonium chloride aqueous solution with a volume concentration of 1%, soak for 30min; Finally, take out the FTO conductive glass substrate and repeatedly rinse with deionized water to remove excess polydiallyldimethylammonium chloride;

[0036] (2) At room temperature, the FTO conductive glass substrate obtained in step (1) is placed in AuTiO with a molar concentration of 0.01M and a solvent of ethanol. 2 Soak in the nano-solution for 24 hours. After soaking, take out the cathode transparent conductive substrate and dry it at 50°C for 24 hours, and place it in an anhydrous environment for later use; at this time, a layer of TiO2 is formed on the surface of the FTO conductive glass substrate. ...

Embodiment 2

[0041] The preparation method of perovskite solar cell structure in the present embodiment comprises the following steps:

[0042] (1) Clean the ITO conductive glass substrate with detergent first, then immerse the cleaned ITO conductive glass substrate in an aqueous solution of polydiallyldimethylammonium chloride with a volume concentration of 5%, soak for 10min; Finally, take out the cathode transparent conductive substrate and repeatedly rinse with deionized water to remove excess polydiallyldimethylammonium chloride;

[0043] (2) At room temperature, place the cathode transparent conductive substrate obtained in step (1) in an AgTiO solution with a molar concentration of 0.05M and a solvent of ether. 2 Soak in the nano-solution for 5 hours. After soaking, take out the cathode transparent conductive substrate and dry it at 60°C for 20 hours, and place it in an anhydrous environment for later use; at this time, a layer of TiO 2 Coated with the core-shell layer of Ag, the T...

Embodiment 3

[0049] The preparation method of perovskite solar cell structure in the present embodiment comprises the following steps:

[0050] (1) Clean the ITO conductive glass substrate with detergent first, then immerse the cleaned ITO conductive glass substrate in an aqueous solution of polydiallyldimethylammonium chloride with a volume concentration of 2.5%, soak for 20min; Finally, take out the cathode transparent conductive substrate and repeatedly rinse with deionized water to remove excess polydiallyldimethylammonium chloride;

[0051] (2) At room temperature, place the cathode transparent conductive substrate obtained in step (1) in AgTiO with a molar concentration of 0.025M and a solvent of ethanol. 2 Soak in the nano-solution for 15 hours. After soaking, take out the cathode transparent conductive substrate and dry it at 55°C for 22 hours, and place it in an anhydrous environment for later use; at this time, a layer of TiO 2 Coated with the core-shell layer of Ag, the TiO 2 ...

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Abstract

The invention relates to a perovskite solar cell structure which sequentially comprises a cathode transparent conducting substrate, an electron transport layer, a perovskite layer, a hole transport layer and a metal anode. The electron transport layer is a titanium dioxide-coated metal particle core-shell layer. TiO2 coats the Au / Ag core-shell layer to directly serve as the electron transport layer, a special electron transport layer does not need to be manufactured additionally, and a preparation process is simplified. Light absorption by the perovskite layer is promoted by utilizing a plasmon enhancement effect of nano particles, and the light absorption effect of a solar cell is improved. According to the preparation method, the electron transport layer is prepared by adopting a solvent low-temperature process, the use of the steps such as high-temperature sintering in the prior art is avoided, the preparation process is further simplified, and the production cost is reduced. Due to the fact that TiO2 coats the metal particle core-shell layer to serve as the electron transport layer to be directly formed on the cathode transparent conducting substrate in solution rather than be formed through a spin coating process, the structure is more compact, and the electron transport effect is better.

Description

technical field [0001] The invention relates to the technical field of solar cells, specifically a perovskite solar cell structure, and also relates to a preparation method of the perovskite solar cell structure. Background technique [0002] With the depletion of global fossil energy and the increasing greenhouse effect and environmental pollution, clean energy and low-carbon economy have become important research topics around the world. Solar cell technology has received a great deal of attention. Among them, silicon-based solar cells and other devices currently on the market are used as raw materials, and the preparation process is demanding, resulting in high utilization costs. People are turning their attention to low-cost solar cell materials and technologies. New thin-film solar cells have attracted more and more attention because of their low cost and large-area preparation technology. Organometallic materials with perovskite-type layered structure, as a material ...

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 裴江华胡子阳诸跃进姜涛张科徐洁刘冲文
Owner NINGBO UNIV
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