Perovskite solar cell and preparation method thereof

A solar cell, perovskite-type technology, applied in the field of solar cells, can solve the problem that the perovskite grain nucleation and film growth direction are difficult to control, the recombination probability of electrons and holes is high, and the carrier diffusion length is reduced. It can improve the photoelectric conversion efficiency and stability, passivate surface defects, and improve the film morphology.
CN105609641AActive Publication Date: 2016-05-25CHINA LUCKY FILM CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA LUCKY FILM CORP
Publication Date
2016-05-25

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Abstract

The invention relates to a perovskite solar cell and a preparation method thereof. By arranging a liquid crystal layer on the surface of an electron transmission layer or a hole transmission layer, the thin film morphology of the electron transmission layer or the hole transmission layer is improved, the defect on the surface of the electron transmission layer or the hole transmission layer is passivated, the transmission of reverse current carriers is effectively blocked, the electric leakage generation is prevented, the combination probability of electrons and holes which are generated in a perovskite light absorption layer is reduced, and the photoelectric conversion efficiency and the stability of the cell are improved; and meanwhile, the liquid crystal layer is prepared by a low-temperature solution method, and the preparation method is suitably used for roll-to-roll industrial production of the perovskite photovoltaic cell, and is simple in process and low in fabrication cost.
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Description

Technical field

[0001] The invention relates to the technical field of solar cells, in particular to a perovskite type solar cell and a preparation method thereof. Background technique

[0002] In recent years, with the depletion of energy and the worsening of the environment, solar cell technology and the market have developed rapidly. In particular, crystalline silicon solar cells have been widely used worldwide. However, with the development of emerging industries and special military fields, solar energy The battery puts forward higher requirements, such as high efficiency, low cost, flexibility, lightness and thinness, high specific power, and spoolable processing. Perovskite solar cells (PSC) have become a hot spot for R&D and industrialization because they meet all the above requirements.

[0003] Perovskite solar cells originated from dye-sensitized solar cells (DSSC, containing liquid electrolyte), and then through solid-state DSSC, porous structure PSC (including porous ...

Claims

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