A kind of preparation method of the solar cell of antimony sulfide base thin film after annealing treatment of alcohol vapor
A solar cell, antimony sulfide-based technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problem of large-scale industrial applications that limit the photoelectric conversion efficiency of antimony sulfide-based thin film solar cells, small grain size and poor crystallinity of antimony sulfide thin films And other issues
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[0029] Adopt the preparation method of the solar cell of antimony sulfide-based thin film after the annealing treatment of alcohol vapor, it is characterized in that the steps are as follows:
[0030] 1) Treatment of FTO glass: first clean the FTO glass with decontamination powder, then ultrasonically treat it with deionized water, acetone and absolute ethanol for 5-15 minutes, dry it with nitrogen, and finally perform UV treatment for 5- 20min;
[0031] 2) Preparation of electron transport layer: the present invention adopts TiO 2 As an electron transport material, spin-coat the solution on the FTO glass treated in step 1) at a rate of 1000-5000rpm / min for 20-80s, then anneal at 100-500°C in air for 10-60min, and then slowly After cooling to room temperature, dense TiO can be obtained 2 layer;
[0032] 3) Preparation of antimony sulfide light-absorbing layer: move the substrate treated in step 2) into a glove box protected by nitrogen gas. Will Sb 2 o 3 CS diluted in powd...
Embodiment 1
[0045] 1) Treatment of FTO glass: first, clean the FTO glass with a size of 15mm×15mm and an impedance of 14Ω / sq with decontamination powder, then ultrasonically treat it with deionized water, acetone and absolute ethanol for 10 minutes, and then use nitrogen gas to clean it. Blow dry, and finally UV treatment for 15 minutes;
[0046] 2) Preparation of the electron transport layer: the prepared TiO 2 The solution was spin-coated on the FTO glass treated in step 1) at a rate of 4000rpm / min for 60s, then annealed at 400°C in air for 40min, and then slowly cooled to room temperature to obtain dense TiO 2 layer;
[0047] 3) Preparation of antimony sulfide light-absorbing layer: move the substrate treated in step 2) into a glove box protected by nitrogen gas. Will Sb 2 o 3 Powder (1.0mmol, AR), CS diluted in ethanol (2mL, GR) 2 (2mL, AR) and n-butylamine (1.5mL, AR) were fully mixed and stirred to obtain a precursor solution of antimony, which was added dropwise on TiO 2 On t...
Embodiment 2
[0052] 1) Treatment of FTO glass: first, clean the FTO glass with a size of 15mm×15mm and an impedance of 14Ω / sq with decontamination powder, then ultrasonically treat it with deionized water, acetone and absolute ethanol for 10 minutes, and then use nitrogen gas to clean it. Blow dry, and finally UV treatment for 15 minutes;
[0053] 2) Preparation of the electron transport layer: the prepared TiO 2 The solution was spin-coated on the FTO glass treated in step 1) at a rate of 4000rpm / min for 60s, then annealed at 400°C in air for 40min, and then slowly cooled to room temperature to obtain dense TiO 2 layer;
[0054] 3) Preparation of antimony sulfide light-absorbing layer: move the substrate treated in step 2) into a glove box protected by nitrogen gas. Will Sb 2 o 3 Powder (1.0mmol, AR), CS diluted in ethanol (2mL, GR) 2 (2mL, AR) and n-butylamine (1.5mL, AR) were fully mixed and stirred to obtain a precursor solution of antimony, which was added dropwise on TiO 2 On t...
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