Counter electrode of dye-sensitized solar cell and preparation method of counter electrode
A technology for solar cells and dye sensitization, applied in the field of dye-sensitized solar cells, can solve problems such as limited catalytic sites, and achieve the effects of improving the reduction reaction rate, mild reaction conditions, and improved utilization.
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Embodiment 1
[0024] Embodiment 1: The counter electrode of the dye-sensitized solar cell provided in this embodiment includes a conductive substrate, and the conductive substrate includes a transparent conductive glass and a conductive anti-opal layer with a high specific surface area attached to the transparent conductive glass , wherein, the inverse opal layer has a porous grid structure, and platinum nanocrystalline particles are loaded on the surface of the pores.
[0025] The thickness of the inverse opal layer is 1-15 μm, and its pore diameter is 100-1500 nm.
[0026] The inverse opal layer is made of fluorine-containing inorganic salts or organic salts doped with tin-containing inorganic salts or organic salts, inorganic antimony salts doped with tin-containing inorganic salts or organic salts, and is made by adding alcoholic organic solvents, wherein The molar ratio of fluorine to tin is 0.01-4:1, and the molar ratio of antimony to tin is 0.01-0.1:1.
[0027] The fluorine-containi...
Embodiment 2
[0037] Example 2: This example provides a method for preparing a counter electrode of a dye-sensitized solar cell, the steps of which are basically the same as in Example 1, except that:
[0038] (1) Take polystyrene microspheres with a particle size of 180 nm, and prepare a polystyrene colloidal plate with a thickness of 1 μm on transparent conductive glass by room temperature vertical deposition method as a template;
[0039] (2) configure a fluorine-doped tin tetrachloride solution, wherein the precursor of fluorine is ammonium fluoride, and the substance ratio of fluorine to tin is 4:1, and the solution is added to an ethanol solution to form a mixed solution;
[0040] (3) Spin-coat the mixed solution prepared in step (2) onto the polystyrene colloidal plate prepared in step (1), then place it in a muffle furnace, and calcinate it at 500°C for 2 hours to remove A polystyrene colloidal plate to obtain a fluorine-tin co-doped inverse opal structure layer with a thickness of ...
Embodiment 3
[0042] Embodiment 3: This embodiment provides a method for preparing a counter electrode of a dye-sensitized solar cell, the steps of which are basically the same as those in Embodiments 1 and 2, except that:
[0043] (1) Take polystyrene microspheres with a particle size of 600nm, and prepare a polystyrene colloidal plate with a thickness of 3 μm on transparent conductive glass by room temperature vertical deposition method as a template;
[0044] (2) Configure a fluorine-doped tin dichloride solution, wherein the precursor of fluorine is sodium fluoride, and the molar ratio of fluorine to tin is 0.67:1, add the solution to the butanol solution to make a mixed solution ;
[0045] (3) Spin-coat the mixed solution prepared in step (2) onto the polystyrene colloidal plate prepared in step (1), then place it in a muffle furnace, and calcinate it at 400°C for 4 hours to remove A polystyrene colloidal plate to obtain a fluorine-tin co-doped inverse opal structure layer with a thickn...
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Abstract
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