A kind of preparation method of ZNO film for inverted structure polymer solar cell
A technology for solar cells and structural polymers, applied in the field of solar cells, can solve the problems affecting the structure and optical properties of AZO thin films, mismatching thermal expansion coefficients, etc. The effect of transport and collection efficiency
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Embodiment 1
[0028] A kind of preparation method for the ZnO film of inverted structure polymer solar cell, described preparation method comprises the following steps:
[0029] a) Weigh 1 g of zinc acetate dihydrate and 0.01 g of aluminum nitrate nonahydrate and dissolve them in 10 ml of ethanol solution, add 0.1 ml of monoethanolamine into the solution; stir the prepared solution at 30°C for 0.1 h; wait until the solution is clear and transparent Afterwards, aging at room temperature for 24h;
[0030] b) Spin-coat the precursor solution obtained in step a) on the ITO glass substrate, the speed of the homogenizer is 1000rpm, and the spin-coating time is 10s; Annealing treatment, obtain AZO buffer layer 1, thickness is 5nm;
[0031] c) On this basis, repeat step b), and then prepare AZO buffer layer 2, and prepare buffer layer 3 on the basis of buffer layer 2, and obtain a multi-layer AZO buffer laminated structure sample: ITO / AZO / AZO / AZO; After the sample was cooled to room temperature, ...
Embodiment 2
[0035] A kind of preparation method for the ZnO film of inverted structure polymer solar cell, described preparation method comprises the following steps:
[0036] a) Weigh 2 g of zinc acetate dihydrate and 0.02 g of aluminum nitrate nonahydrate and dissolve them in 20 ml of ethanol solution, add 0.2 ml of monoethanolamine into the solution; stir the prepared solution at 50°C for 0.5 h; wait until the solution is clear and transparent Afterwards, aging at room temperature for 24h;
[0037] b) The ITO glass substrate is immersed in the adhesion-promoting solution, and treated with ultrasonic for 50 minutes; then taken out and added with acetone for ultrasonic treatment for 20 minutes, rinsed with deionized water after taking out, and then dried the substrate with nitrogen gas; the temperature of the adhesion-promoting solution is 70°C ;
[0038] Spin-coat the precursor liquid obtained in step a) on the ITO glass substrate, the speed of the homogenizer is 2000rpm, and the spin-...
Embodiment 3
[0044] A kind of preparation method for the ZnO film of inverted structure polymer solar cell, described preparation method comprises the following steps:
[0045] a) Weigh 3 g of zinc acetate dihydrate and 0.1 g of aluminum nitrate nonahydrate and dissolve them in 30 ml of ethanol solution, add 0.5 ml of monoethanolamine into the solution; stir the prepared solution at 80°C for 1 hour; wait until the solution is clear and transparent , aging at room temperature for 24h;
[0046] b) The ITO glass substrate is immersed in the adhesion-promoting solution, and treated ultrasonically for 60 minutes; then taken out and added with acetone and ultrasonically treated for 30 minutes, rinsed with deionized water after taking it out, and then dried the substrate with nitrogen gas; the temperature of the adhesion-promoting solution is 80°C ;
[0047] Spin-coat the precursor liquid obtained in step a) on the ITO glass substrate, the speed of the homogenizer is 3000rpm, and the spin-coatin...
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