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Manufacturing method of high-open-circuit-voltage photovoltaic cell

A manufacturing method, open circuit voltage technology, applied in photovoltaic power generation, final product manufacturing, sustainable manufacturing/processing, etc.

Active Publication Date: 2013-04-03
LIYANG CITY PRODIVITY PROMOTION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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.

Method used

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  • Manufacturing method of high-open-circuit-voltage photovoltaic cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Preparation of 3,4,5-trimethoxy-1-[(3-nitro-4-methoxyphenyl)thio]benzene (ZLM-6)

[0074]

[0075] Dissolve O-ethyl-S-(3,4,5-trimethoxyphenyl)dithiocarbonate ZLM-1 (2.42g) in THF (32mL), slowly add LiAlH 4 (1.3g), refluxed for 1h, cooled to room temperature, adjusted to pH=5 with 10% HCl, then extracted 20mL×4 with EA, combined the organic phases, dried with anhydrous sodium sulfate for 1h, and then filtered with suction to obtain the filtrate, which was spun After removing the solvent, a yellow oil was obtained. Under nitrogen protection, first add potassium carbonate (1.16g, 8.40mmol, 2.0eq), CuI (400mg, 2.10mmol, 0.5eq) and ethylene glycol (0.49mL, 8.40mmol, 2.0eq) into a 25mL two-necked flask , and then dissolve the yellow oil obtained in the previous step in isopropanol (4.0 mL), then add it to the reaction flask, reflux at 80 ° C for 20 h, cool to room temperature, filter with suction, and wash the filter residue with EA several times to obtain the filtrate. ...

Embodiment 2

[0077] Preparation of 3,4,5-trimethoxy-1-[(3-amino-4-methoxyphenyl)thio]benzene (ZLM-7)

[0078]

[0079] According to Example 1, 1-(3'- Nitro-4'-methoxyphenyl)-2-methyl-5-(3',4',5'-trimethoxyphenyl)pyrrole ZLM-12, 181 mg white solid was obtained, yield 66% , mp 168.1-170.2℃. 1 H NMR (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 C NMR (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, p-nitroiodobenzene (200 mg) was used instead of 3-nitro-4-methoxy iodobenzene to obtain 194 mg of light yellow solid, yield 76%, mp 168.1-170.2 ° C. 1 H NMR (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). 13C NMR (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 invention relates to a method for manufacturing a photovoltaic cell. Background technique [0002] With the increase of global energy demand year by year and the depletion of primary 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, 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 compound semiconductors. Among them, polycrystalline silicon and amorphous silicon photovoltaic cells are used in civilian applications. Dominant in the photovoltaic cell market. After more than 50 years of development, the photoelectric conversion efficiency of inorganic monocrystalline silicon photovoltaic ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48
CPCY02E10/549Y02P70/50
Inventor 张俊丛国芳
Owner LIYANG CITY PRODIVITY PROMOTION CENT
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