Perovskite/silicon laminated solar cell and preparation method thereof

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of inability to achieve simultaneous passivation of multiple types of defects and low efficiency of carrier interface suppression.
CN113193002AInactive Publication Date: 2021-07-30UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2021-07-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention belongs to the technical field of solar cells, provides a perovskite / silicon laminated solar cell and a preparation method thereof, and aims to solve the problems that synchronous passivation of multiple types of defects cannot be realized by perovskite material interface passivation in the prior art, the suppression efficiency of carrier interface recombination is low and the like. An organic ionic modifier passivation layer is introduced between a perovskite light absorption layer and a hole transport layer of the perovskite / silicon laminated cell, so that synchronous and efficient passivation of multiple types of defects of an interface is realized, and the defect state density is remarkably reduced; and meanwhile, lattice mismatch at the interface is effectively prevented, and the defect passivation effect is further optimized. In conclusion, the perovskite / silicon laminated solar cell has lower defect state density and higher short-circuit current density and open-circuit voltage, and the overall performance of the perovskite / silicon laminated solar cell is remarkably improved; and moreover, the organic ionic modifier passivation layer is mature in synthesis process and low in price, and has the advantages of high efficiency, stability and low cost.
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Description

technical field

[0001] The invention belongs to the technical field of solar cells, and specifically provides a perovskite / silicon stacked solar cell and a preparation method thereof. Background technique

[0002] In the 21st century, facing severe energy shortages, environmental pollution and other problems, the development and utilization of clean and renewable energy is an urgent task for our country; solar energy has become one of the new energy sources that has attracted much attention due to its green environmental protection, low price and abundant reserves. , is considered to be one of the most promising alternatives to replace traditional fossil fuels. As an important way to effectively utilize solar energy, the development of solar cells has received increasing attention, and among many photovoltaic devices, Perovskite Solar Cells (PSCs) have developed rapidly in recent years.

[0003] Perovskite (CH 3 NH 3 PB 3 ) solar cells belong to the third generation of s...

Claims

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