A kind of conjugated fullerene/graphene thin film solar cell and its preparation method
A graphene thin film and solar cell technology, applied in the field of solar cell materials, can solve problems such as low efficiency, and achieve the effects of good controllability, improved stability, and simple preparation methods
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Embodiment 1
[0027] (1) Clean the ITO transparent conductive glass sputtered with doped indium tin oxide with detergent, tap water, deionized water, acetone and isopropanol ultrasonically twice, dry it with nitrogen, and move it into the glove box to obtain the lining. end.
[0028] (2) Add titanium oxide acetylacetonate with a volume ratio of 1:20 into the isopropanol solution to form a titanium oxide acetylacetonate solution, spin-coat the titanium oxide acetylacetonate solution on the substrate at a speed of 4000 rpm, and anneal at 150 ° C for 10 min Obtain the cathode layer.
[0029] (3) At room temperature, add the PTB7-Th conjugated polymer, PC71BM fullerene derivative and graphene solution with a mass ratio of 1:1.5:0.5 into chlorobenzene, and stir overnight to obtain a mixed solution, wherein, mixing The concentration of PTB7-Th conjugated polymer in the solution was 10 mg / mL, and the mixed solution was spin-coated on the cathode layer at a speed of 4000 rpm, and then spin-coated ...
Embodiment 2
[0032] (1) Clean the ITO transparent conductive glass sputtered with doped indium tin oxide with detergent, tap water, deionized water, acetone and isopropanol ultrasonically twice, dry it with nitrogen, and move it into the glove box to obtain the lining. end.
[0033] (2) Add titanium oxide acetylacetonate with a volume ratio of 1:20 into the isopropanol solution to form a titanium oxide acetylacetonate solution, spin-coat the titanium oxide acetylacetonate solution on the substrate at a speed of 4000 rpm, and anneal at 150 ° C for 10 min Obtain the cathode layer.
[0034] (3) At room temperature, add the PTB7-Th conjugated polymer, PC71BM fullerene derivative and graphene solution with a mass ratio of 1:1.5:0.7 into chlorobenzene, and stir overnight to obtain a mixed solution, wherein, mixing The concentration of PTB7-Th conjugated polymer in the solution was 10 mg / mL, and the mixed solution was spin-coated on the cathode layer at a speed of 4000 rpm, and then spin-coated ...
Embodiment 3
[0037] (1) Clean the ITO transparent conductive glass sputtered with doped indium tin oxide with detergent, tap water, deionized water, acetone and isopropanol ultrasonically twice, dry it with nitrogen, and move it into the glove box to obtain the lining. end.
[0038] (2) Add titanium oxide acetylacetonate with a volume ratio of 1:20 into the isopropanol solution to form a titanium oxide acetylacetonate solution, spin-coat the titanium oxide acetylacetonate solution on the substrate at a speed of 4000 rpm, and anneal at 150 ° C for 10 min Obtain the cathode layer.
[0039] (3) At room temperature, add the PTB7-Th conjugated polymer, PC71BM fullerene derivative and graphene solution with a mass ratio of 1:1.5:0.6 into chlorobenzene, stir overnight to obtain a mixed solution, wherein, mix The concentration of PTB7-Th conjugated polymer in the solution was 10 mg / mL, and the mixed solution was spin-coated on the cathode layer at a speed of 4000 rpm, and then spin-coated a mixed...
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