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    After CO2 treatment, the conductivity can be increased by about 100 times

    • Last Update: 2021-06-08
    • Source: Internet
    • Author: User
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    Perovskite solar cells have achieved a power conversion efficiency of up to 25.


    In perovskite solar cells, the charge extraction layer sandwiched between the absorber layer and the electrode is usually a doped organic semiconductor.


    In order to improve the conductivity of spiro-OMeTAD, lithium bis(trifluoromethane)sulfonimide (LiTFSI) dopant is usually added to the spiro-OMeTAD solution, and then the spiro-OMeTAD: LiTFSI mixed film is exposed to air and light.


    In this process, the oxidation product is used as a p-type dopant.


    In order to reduce the time cost of post-processing of the original spiro-OMeTAD:LiTFSI film, New York University André D.


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