A kind of perovskite solar cell and preparation method thereof
A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of low mobility, recombination of electrons and holes, etc., and achieve the effects of easy synthesis, simple operation, and improved transmission and collection efficiency
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Embodiment 1
[0035] A method for preparing a perovskite solar cell, comprising the steps of:
[0036] Step S1, select FTO (tin oxide doped with F) conductive glass with a surface roughness of less than 1 nm as the conductive substrate, first clean the FTO conductive substrate, dry it with dry nitrogen after cleaning, and perform ultraviolet light and ozone treatment , to obtain a clean FTO conductive substrate; prepare TiO on the clean FTO conductive substrate 2 Dense layer film, the film thickness is 60nm, the specific operation method is: prepare a certain concentration (0.25mol / L) titanium isopropoxide ethanol solution, use spin coating method or spray coating method or roller coating method or spray pyrolysis method or LB film TiO was prepared on FTO conductive substrate by method or inkjet method 2 Thin film of dense layer, heated and annealed at 500°C for 30min.
[0037] Step S2, use 15ml of concentrated hydrochloric acid, 15ml of deionized water and 0.7ml of butyl titanate to conf...
Embodiment 2
[0043] A method for preparing a perovskite solar cell, comprising the steps of:
[0044] Step S1, select FTO (tin oxide doped with F) conductive glass with a surface roughness of less than 1 nm as the conductive substrate, first clean the FTO conductive substrate, dry it with dry nitrogen after cleaning, and perform ultraviolet light and ozone treatment , to obtain a clean FTO conductive substrate; prepare TiO on a clean FTO conductive substrate (tin oxide doped with F) 2 Dense layer film, the film thickness is 30nm, the specific operation method is: prepare a certain concentration (0.25mol / L) titanium isopropoxide ethanol solution, use spin coating method or spray coating method or roller coating method or spray pyrolysis method or LB film TiO was prepared on FTO conductive substrate by method or inkjet method 2 Thin film of dense layer, heated and annealed at 500°C for 30min.
[0045] Step S2, use 15ml of concentrated hydrochloric acid, 15ml of deionized water and 0.7ml of...
Embodiment 3
[0051] A method for preparing a perovskite solar cell, comprising the steps of:
[0052] Step S1, select FTO (tin oxide doped with F) conductive glass with a surface roughness of less than 1 nm as the conductive substrate, first clean the FTO conductive substrate, dry it with dry nitrogen after cleaning, and perform ultraviolet light and ozone treatment , to obtain a clean FTO conductive substrate; prepare TiO on a clean FTO conductive substrate (tin oxide doped with F) 2 Dense layer film, the film thickness is 30nm, the specific operation method is: prepare a certain concentration (0.25mol / L) titanium isopropoxide ethanol solution, use spin coating method or spray coating method or roller coating method or spray pyrolysis method or LB film TiO was prepared on FTO conductive substrate by method or inkjet method 2 Thin film of dense layer, heated and annealed at 500°C for 30min.
[0053] Step S2, use 15ml of concentrated hydrochloric acid, 15ml of deionized water and 0.7ml of...
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