Copper-doped cadmium sulfide quantum dot sensitizer used for solar cell and manufacturing method
A solar cell and quantum dot sensitization technology, applied in the field of solar energy, to achieve the effects of improving short-circuit current and photoelectric conversion efficiency, rapid separation, and suppressing dark current
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Embodiment 1
[0029] The specific steps of the copper-doped lead sulfide quantum dot sensitizer for solar cells and the preparation method are:
[0030] 1) Equipped with Pb(NO at a concentration of 0.1M 3 ) 2 solution and Na 2 S solution, placed in a water bath at 20-50°C for 30-60min;
[0031] 2) CuCl 2 The solution is added to the Pb(NO 3 ) 2 In the solution, the atomic number ratio of Cu and Pb is 1:5;
[0032] 3) Put the solution obtained in step 2) into a water bath at 30°C for 30 minutes;
[0033] 4) The photoanode material TiO to be sensitized 2 Immerse in the solution prepared in step 3) for 1 min, take it out and dry it with nitrogen;
[0034] 5) Immerse the photoanode material obtained in step 4) into the Na prepared in step 2) 2 In the S solution for 1 min, take it out and dry it with nitrogen gas, and then form a Cu-doped PbS semiconductor quantum dot sensitizer layer on the photoanode material;
[0035] 6) Equipped with Cd(NO at a concentration of 0.1M 3 ) 2 solutio...
Embodiment 2
[0039] The specific steps of the copper-doped lead sulfide quantum dot sensitizer for solar cells and the preparation method are:
[0040] 1) Equipped with Pb(NO at a concentration of 0.1M 3 ) 2 solution and Na 2 S solution, placed in a water bath at 20-50°C for 30-60min;
[0041] 2) CuCl 2 The solution is added to the Pb(NO 3 ) 2 solution, in which Cu 2+ with Pb 2+ The ratio of the number of atoms is 1:100;
[0042] 3) Put the solution obtained in step 2) into a water bath at 30°C for 30 minutes;
[0043] 4) The photoanode material TiO to be sensitized 2 Immerse in the solution prepared in step 3) for 5 minutes, take it out and dry it with nitrogen;
[0044] 5) Immerse the photoanode material obtained in step 4) into the Na prepared in step 2) 2 In the S solution for 5 minutes, take it out and dry it with nitrogen gas, and then form a Cu-doped PbS semiconductor quantum dot sensitizer layer on the photoanode material;
[0045] 6) Equipped with Cd(NO at a concentrat...
Embodiment 3
[0049] The specific steps of the copper-doped lead sulfide quantum dot sensitizer for solar cells and the preparation method are:
[0050] 1) Equipped with Pb(NO at a concentration of 0.1M 3 ) 2 solution and Na 2 S solution, placed in a water bath at 20-50°C for 30-60min;
[0051] 2) CuCl 2 The solution is added to the Pb(NO 3 ) 2 solution, in which Cu 2+ with Pb 2+ The ratio of the number of atoms is 1:1000;
[0052] 3) Put the solution obtained in step 2) into a water bath at 30°C for 30 minutes;
[0053] 4) The photoanode material TiO to be sensitized 2 Immerse in the solution prepared in step 3) for 5 minutes, take it out and dry it with nitrogen;
[0054] 5) Immerse the photoanode material obtained in step 4) in the Na2S solution prepared in step 2) for 5 min, take it out and dry it with nitrogen, and then form a Cu-doped PbS semiconductor quantum dot sensitizer layer on the photoanode material;
[0055] 6) Equipped with Cd(NO at a concentration of 0.1M 3 ) 2...
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