Method for preparing perovskite film, and perovskite solar cell device
A solar cell and perovskite technology, applied in the direction of electric solid devices, electrical components, semiconductor devices, etc., to achieve the effect of improving photovoltaic performance, improving charge transport capacity, increasing carrier mobility and diffusion length
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[0031] Example 1
[0032] 1) Solution configuration: MAI and PbI 2 Dissolve in the mixed solvent at a molar ratio of 1:1 with a concentration of 1.5mmol / mL. In the mixed solvent, DMF and DMSO form the main solution in a ratio of 8:2, and then add a certain volume of ether so that the content of ether additive accounts for 3% of the volume of the mixed solution, magnetically stirred for 6 hours until the solution is clear for later use;
[0033] 2) Cleaning of the substrate: Place the ITO conductive glass substrate on the dedicated substrate holder, and use the cleaning agent, deionized water, acetone and ethanol to sonicate twice for 20 minutes each time; after cleaning, put it in the oven Dry, and then treat the dried ITO conductive glass with ultraviolet-ozone plasma for 4 minutes to improve the work function;
[0034] 3) Preparation of the hole transport layer: NiOx is prepared into a suspension with a concentration of 20mg / mL, and the dispersion is made more uniform with an ultr...
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[0039] Example 2
[0040] Refer to the method of Example 1 to prepare the perovskite film, and use the perovskite film as the active layer to prepare the solar cell device. The difference is that the volume of the ether antisolvent in the perovskite precursor solution prepared in step 1) accounts for the total mixed solvent 4% of the volume.
Example Embodiment
[0041] Example 3
[0042] Refer to the method of Example 1 to prepare the perovskite film, and use the perovskite film as the active layer to prepare the solar cell device. The difference is that the volume of the ether antisolvent in the perovskite precursor solution prepared in step 1) accounts for the total mixed solvent 6% of the volume.
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