A kind of manufacturing method of the photovoltaic cell of high open circuit voltage
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A manufacturing method and open-circuit voltage technology, applied in photovoltaic power generation, final product manufacturing, sustainable manufacturing/processing, etc.
Active Publication Date: 2016-03-02
LIYANG CITY PRODIVITY PROMOTION CENT
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[0006] However, the current open circuit voltage of organic photovoltaic cells can only reach about 0.60~0.80eV, and there is still a long way to go before commercialization.
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Embodiment 1
[0073] Preparation of 3,4,5-trimethoxy-1-[(3-nitro-4-methoxyphenyl)thio]benzene (ZLM-6)
[0074]
[0075] O-ethyl-S-(3,4,5-trimethoxyphenyl)dithiocarbonate ZLM-1 (2.42 g) was dissolved in THF (32 mL), and LiAlH was slowly added in portions 4 (1.3g), refluxed for 1 h, cooled to room temperature, adjusted to pH=5 with 10% HCl, extracted with EA for 20 mL×4, combined with the organic phases, dried over anhydrous sodium sulfate for 1 h, and filtered with suction to obtain the filtrate, spin The solvent was removed to obtain a yellow oil. Under nitrogen protection, potassium carbonate (1.16g, 8.40mmol, 2.0eq), CuI (400mg, 2.10mmol, 0.5eq) and ethylene glycol (0.49mL, 8.40mmol, 2.0eq) were first added to a 25mL two-neck flask , and then the yellow oil obtained in the previous step was dissolved in isopropanol (4.0 mL), then added to the reaction flask, refluxed at 80 ° C for 20 h, cooled to room temperature, suction filtered, and the filter residue was washed several times with ...
Embodiment 2
[0077] Preparation of 3,4,5-trimethoxy-1-[(3-amino-4-methoxyphenyl)thio]benzene (ZLM-7)
[0078]
[0079] According to Example 1, use 3,4,5-trimethoxy-1-[(3-nitro-4-methoxyphenyl)thio]benzene ZLM-6 (300 mg) instead of 1-(3'- Nitro-4'-methoxyphenyl)-2-methyl-5-(3',4',5'-trimethoxyphenyl)pyrrole ZLM-12 to give 181 mg of white solid, 66% yield , mp168.1-170.2℃. 1 HNMR (400MHz, CDCl 3 ): δ3.77(s, 6H), 3.81(s, 3H), 3.86(s, 3H), 6.50(s, 2H), 6.75(d, J=8.4Hz, 1H), 6.78(d, J= 2.4Hz, 1H), 6.83 (dd, J=6.4, 2.0Hz, 1H). 13 CNMR (400MHz, CDCl3): δ55.5, 56.0, 60.9, 106.4, 110.7, 118.6, 122.9, 125.3, 132.6, 136.4, 136.8, 147.2, 153.3. MS (EI) m / z: 321 (M + ).
Embodiment 3
[0081] Preparation of 3,4,5-trimethoxy-1-[(4-nitrophenyl)thio]benzene (ZLM-8)
[0082]
[0083] According to Example 1, use p-nitroiodobenzene (200mg) instead of 3-nitro-4-methoxyiodobenzene to obtain 194mg of pale yellow solid, yield 76%, mp 168.1-170.2 ℃. 1 HNMR (400MHz, CDCl 3 ): δ3.85(s, 6H), 3.91(s, 3H), 6.79(s, 2H), 7.17(d, J=8.8Hz, 2H), 8.09(d, J=8.8Hz, 2H). 13CNMR (400MHz, CDCl3): δ56.3, 61.0, 112.0, 124.1, 124.2, 125.9, 138.4, 145.1, 149.1, 154.1. MS (EI) m / z: 321 (M + ).
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Abstract
The invention discloses a manufacturing method of a high-open-circuit-voltage photovoltaic cell. The method comprises preparing a substrate, an anode, an active layer, an electronic transmission layer and a cathode successively, wherein the electronic transmission layer is a polymer with a structure of the general formula (I), and the polymerization degree n thereof is any integer between 1 and 300. The manufacturing method of the polymer comprises the following steps of: carrying out decarboxylative nitration on a compound 1 under the action of concentrated nitric acid and acetic acid to obtain a compound 2, and reducing the compound 2 to a compound 3 by using zinc powder / acetic acid or palladium carbon / hydrazine hydrate, then preparing a diazonium salt solution by using sodium nitrite and hydrochloric acid, and reacting with potassium ethyl xanthate to generate a compound 4; preparing a diazotate solution from aromatic amine 5 with sodium nitrite and hydrochloric acid, and reacting with sodium iodide to synthesize an aromatic iodide 6; (3) dissolving the compound 4 in tetrahydrofuran, and reducing the compound 4 to thiophenol 7 with lithium aluminum hydride; and (4) dissolving the aromatic iodide compound 6 and the thiophenol 7 in solvents of ethanediol and isopropanol or toluol and the like, and synthesizing a material with a structure of the general formula I under the action of potassium carbonate and cuprous iodide. The photovoltaic cell manufactured by using the material as the electronic transmission layer has a relatively high open circuit voltage and good device performance.
Description
technical field [0001] The present invention relates to a method for manufacturing a photovoltaic cell. Background technique [0002] With the increase of global energy demand year by year, the depletion of one-time energy such as oil and coal, people have invested more attention and research on renewable resources such as wind energy and solar energy. Among them, photovoltaic cells based on photovoltaic effect are one of the hot spots. one. [0003] At present, the mature photovoltaic cells on the market are mainly inorganic photovoltaic cells based on monocrystalline silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, indium phosphide and polycrystalline film compound semiconductors. Among them, polycrystalline silicon and amorphous silicon photovoltaic cells are used in civilian use. The photovoltaic cell market dominates. After more than 50 years of development, the photoelectric conversion efficiency of inorganic monocrystalline silicon photovoltaic...
Claims
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