Method for preparing nano wafer photon anode of flexible dye-sensitized solar cell
A technology of solar cells and nano-chips, which is applied in the field of solar cells, can solve the problems of not having the flexibility of a flexible substrate, and achieve the effects of high photoelectric conversion efficiency, improved transmission capacity, and good transmission efficiency.
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Embodiment 1
[0027] The synthesis steps of zinc oxide porous nanochips containing dye molecules are as follows: PET (flexible substrate 1) covered with ITO was ultrasonicated in deionized water, ethanol and acetone solutions for 5 min each, and then dried in air. Under the conditions of pH2.0-6.0, 50°C water bath and 2.0V voltage, the flexible substrate 1 (polyethylene terephthalate / nano-tin indium metal oxide electrode, PET / ITO electrode), reference The three-electrode system of the specific electrode and the counter electrode was put into the 0.1M zinc nitrate electrolyte solution containing the morphology control agent ammonium chloride for electrolysis for 1 hour. The flexible substrate 1 (polyethylene terephthalate / nanometer tin indium metal oxide electrode, namely PET / ITO electrode) loaded with zinc oxide porous nanochip 3 is dried in the air at 130 ° C, and then placed in Soak in a solution containing cis-bis(isothiocyanate)-trans-bis(2,2'-bipyridyl-4,4'-dicarboxylic acid) ruthenium...
Embodiment 2
[0037] The preparation steps of the porous nano-chip dye-sensitized solar cell with a flexible substrate are as follows: since the present invention only relates to the improvement of the photoanode material in the dye-sensitized solar cell, the preparation method of other components constituting the dye-sensitized solar cell and The method of assembling the device is not limited, therefore, except for the preparation of the photoanode material, other preparation and assembly methods can be prepared and assembled by well-known and recognized methods in the art. For example: the PET / ITO of the above-mentioned dye-loaded ZnO porous wafer was used as a photoanode. The metal platinum (Pt) electrode was soaked in 0.1M HCl, and then washed with deionized water, and the metal platinum (Pt) was dried as a counter electrode. The above-mentioned photoanode and the counter electrode are sealed by encapsulation material, and a certain space for containing the electrolyte is formed in the ...
Embodiment 3
[0041] A zinc oxide nanocrystalline dye-sensitized solar cell with a flexible substrate prepared based on a method for preparing a nano-chip dye-sensitized solar cell based on a flexible substrate proposed by the present invention, the structure and data are shown in No. 1 in Table 1. Change the zinc oxide microstructure and substrate composition, and other preparation methods are the same as No. 1. The structure and data of the prepared solar cell are shown in No. 2 and No. 3 in Table 1.
[0042] As can be seen from the results shown in Table 1, No. 1 has the following differences with respect to No. 2 solar cells: the zinc oxide microstructure is different, No. 1 is a nanochip, and No. 2 is a nanoparticle; the above-mentioned differences cause The result is that the short circuit current, open circuit voltage, dye filling factor and photoelectric conversion efficiency of number 1 are higher than those of number 2, and the performance of the solar cell of number 1 is better th...
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