Optical anode slurry with polyvinyl pyrrolidone as film-forming agent, and its production method
A polyvinylpyrrolidone and photoanode technology, which is applied in the field of dye-sensitized solar cell manufacturing, can solve problems such as cracks, and achieve the effects of improving short-circuit current density, strong complexing ability and low price.
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Embodiment 1
[0016] The preparation method of photoanode slurry, the steps are as follows:
[0017] 1) Dissolve 0.15g polyvinylpyrrolidone in 10ml alcohol at normal temperature, the concentration of polyvinylpyrrolidone in alcohol is 0.375mmol / L.
[0018] 2) TiO 2 Put 0.25g of powder (P25), 0.32ml of acetylacetone, 0.6ml of Triton X-100, and 1.3ml of terpineol into the above solvent, and grind for 30 minutes to make it sticky.
[0019] The slurry prepared above is brushed on the conductive glass by scraping method, and after sintering at 500°C for 30 minutes, the photoanode is made; and then the DSC battery can be prepared according to the conventional process. The battery was tested under AM1.5 standard sunlight, and the results showed that the short-circuit current density of the battery reached 11.3mA / cm 2 , the open circuit voltage is 0.81V, the fill factor of the battery is 59%, and the efficiency has reached 5.31%.
Embodiment 2
[0021] The preparation method of photoanode slurry, the steps are as follows:
[0022] 1) Dissolve 0.3g polyvinylpyrrolidone in 20ml alcohol at normal temperature, the concentration of polyvinylpyrrolidone in alcohol is 0.375mmol / L.
[0023] 2) Put 0.5g of ZnO nanoflower material, 0.64ml of acetylacetone, 1.2ml of Triton X-100, and 2.6ml of terpineol into the above solvent, and grind for 30 minutes to make it sticky.
[0024] The slurry prepared above is brushed on the conductive glass by scraping method, and after sintering at 500°C for 30 minutes, the photoanode is made; and then the DSC battery can be prepared according to the conventional process. The battery was tested under AM1.5 standard sunlight, and the results showed that the short-circuit current density of the battery reached 4.88mA / cm 2 , the open circuit voltage is 0.54V, the fill factor of the battery is 44%, and the efficiency has reached 1.17%.
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