Copper-doped cadmium sulfide quantum dot sensitizer of solar cell and preparation method thereof
A technology for sensitizing solar cells and quantum dots, which is applied in the field of solar energy to achieve the effects of increasing short-circuit current density, increasing short-circuit current and rapid separation
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Embodiment 1
[0024] The specific steps of the copper-doped cadmium sulfide quantum dot sensitizer and its preparation method are as follows:
[0025] 1) Equipped with 0.1M Cd(NO 3 ) 2 Solution and Na 2 S solution, put it in a water bath at 20-50℃ for 30-60min;
[0026] 2) Put CuCl 2 Add step 1) Cd(NO 3 ) 2 In the solution, where Cu 2+ With Cd 2+ The ratio of the number of atoms is 1:1;
[0027] 3) Put the solution obtained in step 2) into a water bath at 30°C for 30 minutes;
[0028] 4) The photoanode material to be sensitized TiO 2 Immerse in the solution prepared in step 3) for 5 minutes, take it out, clean it with the corresponding solvent, and blow dry with nitrogen;
[0029] 5) Immerse the photoanode material obtained in step 4) into the Na prepared in step 1) 2 In the S solution for 5 minutes, take it out and clean it with the corresponding solvent, and dry it with nitrogen, then a Cu-doped CdS semiconductor quantum dot sensitizer layer is formed on the photoanode material;
Embodiment 2
[0031] The specific steps of the copper-doped cadmium sulfide quantum dot sensitizer and its preparation method are as follows:
[0032] 1) Equipped with 0.1M Cd(NO 3 ) 2 Solution and Na 2 S solution, put it in a water bath at 20-50℃ for 30-60min;
[0033] 2) Put CuCl 2 Add step 1) Cd(NO 3 ) 2 In the solution, where Cu 2+ With Cd 2+ The ratio of the number of atoms is 1:500;
[0034] 3) Put the solution obtained in step 2) into a water bath at 30°C for 30 minutes;
[0035] 4) The photoanode material to be sensitized TiO 2 Immerse in the solution prepared in step 3) for 5 minutes, take it out, clean it with the corresponding solvent, and blow dry with nitrogen;
[0036] 5) Immerse the photoanode material obtained in step 4) into the Na prepared in step 1) 2 In the S solution for 5 minutes, take it out and clean it with the corresponding solvent, and dry it with nitrogen, then a Cu-doped CdS semiconductor quantum dot sensitizer layer is formed on the photoanode material;
Embodiment 3
[0038] The specific steps of the copper-doped cadmium sulfide quantum dot sensitizer and its preparation method are as follows:
[0039] 1) Equipped with 0.1M Cd(NO 3 ) 2 Solution and Na 2 S solution, put it in a water bath at 20-50℃ for 30-60min;
[0040] 2) Put CuCl 2 Add step 1) Cd(NO 3 ) 2 In the solution, where Cu 2+ With Cd 2+ The ratio of the number of atoms is 1:1000;
[0041] 3) Put the solution obtained in step 2) into a 30°C water bath for 30 minutes;
[0042] 4) The photoanode material to be sensitized TiO 2 Immerse in the solution prepared in step 3) for 5 minutes, take it out, clean it with the corresponding solvent, and blow dry with nitrogen;
[0043] 5) Immerse the photoanode material obtained in step 4) into the Na prepared in step 1) 2 In the S solution for 5 minutes, take it out and clean it with a corresponding solvent, and dry it with nitrogen, then a Cu-doped CdS semiconductor quantum dot sensitizer layer is formed on the photoanode material.
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