Dye-sensitized solar cell and its working electrode and working electrode material
A technology of solar cells and dye sensitization, applied in the field of solar cells, can solve the problems of high cost of photovoltaic cell preparation and unfavorable large-scale industrial application, and achieve the effects of low equipment requirements, good open circuit voltage, and large short circuit current
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[0047] The preparation method of this working electrode comprises the following steps:
[0048] (1) Take pure K 2 FeCu 3 Q 4 Put it in a mortar, add ethanol and polyethylene glycol, and grind evenly to form a slurry for later use;
[0049] (2) Take the transparent conductive substrate, ultrasonically clean it with acetone, alcohol, and deionized water, then dry it, coat the slurry on the transparent conductive substrate, form a film, and obtain the primary working electrode;
[0050] (3) drying the primary working electrode in an oven;
[0051] (4) Transfer the dried primary working electrode to a vacuum tube furnace, evacuate to below -0.1MPa, close the valve, and form a sealed system inside the vacuum tube furnace;
[0052] (5) heat up, carry out vacuum annealing reduction treatment;
[0053] (6) Vacuum quenching to room temperature to obtain the working electrode of the dye-sensitized solar cell. The working electrode can be used as the photocathode of the dye-sensiti...
Embodiment 1
[0072] Dye-sensitized solar cell, its preparation method comprises the following steps:
[0073] (1) Take 1g of pure K 2 FeCu 3 S 4 Place in a mortar, add 5mL of ethanol and 0.4g of polyethylene glycol 4000, grind evenly to form a slurry for later use;
[0074] (2) Take a piece of FTO conductive glass, punch two small holes with a distance of 0.5cm on the FTO conductive glass, and then take a piece of FTO without holes, clean it with acetone, alcohol, and deionized water, and then dry it at 75°C. Take a piece of perforated FTO conductive glass, use spin coating or scrape coating to make a certain amount of the slurry described in (1) above form a film with a certain thickness on the substrate, and initially obtain the negative electrode of the solar cell;
[0075] (3) Put the electrode described in step (2) into an oven and dry it;
[0076] (4) Put the dried electrode in step (3) in a crucible, then transfer it to a tube furnace, and evacuate the vacuum tube furnace to bel...
Embodiment 2
[0083] Dye-sensitized solar cell, its preparation method comprises the following steps:
[0084] (1) Take 1.5g of pure K 2 FeCu 3 Se 4 Place in a mortar, add 5mL of ethanol and 0.6g of polyethylene glycol 4000, grind evenly to form a slurry for later use;
[0085] (2) Take a piece of FTO conductive glass, punch two small holes with a distance of 0.5cm on the FTO conductive glass, and then take a piece of FTO without holes, clean it with acetone, alcohol, and deionized water, and then dry it at 70°C. Take a piece of perforated FTO conductive glass, use spin coating or scrape coating to make a certain amount of the slurry described in (1) above form a film with a certain thickness on the substrate, and initially obtain the negative electrode of the solar cell;
[0086] (3) Put the electrode described in step (2) into an oven and dry it; the drying condition is to dry at 50-80°C for more than 30 minutes;
[0087] (4) Put the dried electrode in step (3) in a crucible, then tra...
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