Optical anode slurry with polyvinyl pyrrolidone as film-forming agent, and its production method
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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.
Inactive Publication Date: 2009-05-13
NANKAI UNIV
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This slurry dries easily and the brushed TiO 2 Severe cracking
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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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Abstract
The invention provides optical anode slurry which takes polyvinylpyrrolidone (PVP) as a film forming agent; the raw material comprises ethanol, acetylacetone, polyethylene glycol, triton and terpineol; the polyvinylpyrrolidone is taken as the film forming agent; the preparation of the slurry comprises the steps as follows: the polyvinylpyrrolidone is dissolved in alcohol under normal temperature; the optical anode powder, the acetylacetone, the triton and the terpineol are arranged in the solvent and grinded for 30 minutes to be mucoid. The optical anode slurry has the advantages that the polyvinylpyrrolidone which is used as the film forming agent has low price and the prepared optical node slurry has more excellent performances such as film forming performance and bonding performance; as the polyvinylpyrrolidone is water-soluble macromolecular compound, the polyvinylpyrrolidone has excellent solubility, hygroscopicity, thermal expansion and good complexing; the film is prepared by the PVP, the quantity of dye adsorbed by the TiO2 film and the short-circuit current density of a battery are improved, thus improving the photoelectric conversion efficiency of the battery.
Description
technical field [0001] The invention belongs to the field of dye-sensitized solar cell manufacture, in particular to a photoanode slurry using polyvinylpyrrolidone as a film-forming agent and a preparation method thereof. Background technique [0002] With the continuous progress of the society, the continuous development of the economy, the continuous increase of the population, and the continuous consumption of conventional fuels, solar energy, as a renewable, clean and environmentally friendly new energy, has attracted widespread attention. Compared with conventional fuels, solar energy is inexhaustible and inexhaustible; compared with nuclear energy, solar energy is safer, and its application will not cause any pollution to the environment; compared with water energy and wind energy, the cost of solar energy utilization is lower Low, and not subject to geographical restrictions. The dye-sensitized solar cell (dye-sensitized solar cell referred to as DSC) was first repor...
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