Efficient organic photovoltaic cell provided with electronic transmission layer and hole transmission layer
A technology of organic photovoltaic cells and hole transport layers, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of not being able to achieve large-scale production, and achieve high energy conversion efficiency, open circuit voltage, and good device performance.
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example 1
[0077] Example 1: The preparation of the active layer material 102 includes the following steps:
[0078] 1. Preparation of Compound (201)
[0079] Add 1,2-dibromobenzene (100.0 g, 423.9 mmol), 2-naphthaleneboronic acid (80.2 g, 466.3 mmol), toluene (1000 ml) and tetrakis(triphenylphosphine)palladium (Pd( PPh 3 ) 4 ) (24.5 g, 21.2 mmol), and the mixture was stirred under an argon atmosphere. Aqueous potassium carbonate solution (300 ml) was then added dropwise to the mixture, and the resulting mixture was heated under reflux with stirring for 4 hours. The reaction was quenched by adding distilled water (2000 mL), and the reaction mixture was extracted with ethyl acetate (1000 mL). The organic extract was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. Purification by silica gel column chromatography (ethyl acetate:hexane=1:50) gave 1-bromo-2-(2-naphthyl)benzene (63.59 g, 224.7 mmol, yield: 53.0%).
[0080] 1-Bromo-2-(2-naphthyl)b...
example 2
[0091] Example 2: The preparation of the active layer material (103) includes the following steps
[0092] 1. Preparation of compound (206)
[0093] Add 1,2-dibromobenzene (100 g, 423.9 mmol), 2-(9,9′-dimethyl)fluoreneboronic acid (111.0 g, 466.3 mmol), toluene (1000 ml) and tetrakis(triphenylphosphine)palladium (Pd(PPh 3 ) 4 ) (24.5 g, 21.2 mmol), and the mixture was stirred under an argon atmosphere. Aqueous potassium carbonate solution (300 ml) was then added dropwise to the mixture, and the resulting mixture was heated under reflux with stirring for 4 hours. When the reaction was completed, distilled water (1500 mL) was added to the reaction mixture, followed by extraction with ethyl acetate (800 mL). The obtained organic extract was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. Purification by silica gel column chromatography (ethyl acetate:hexane=1:30) afforded the product, 1-bromo-2-(9,9′-dimethyl)fluorenylbenzene (75.52 ...
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