Benzodioxane group containing hole-transport material, preparation method therefor and application of hole-transport material
A hole transport material, dioxane technology, applied in the field of perovskite solar cells, can solve the problems of complex process, large-scale application limitations and high cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0069] A hole-transporting material containing a benzodioxane group, having a molecular structure shown in Formula 1:
[0070]
[0071] where: R 1 =R 2 =R 3 =R 4 =Formula 2 or formula 3 or formula 6, the structure shown in described formula 2, formula 3 and formula 6 is as follows:
[0072]
[0073] The preparation method of the above-mentioned hole-transporting material containing benzodioxane group comprises the following steps:
[0074] (1) Add 60.0g (0.44mol) of benzodioxane and 40.0g of DMF to a 1L three-necked flask, dissolve 78.5g (0.44mol) of NBS in 200.0g of DMF to prepare a light yellow solution, room temperature 20°C, Slowly add the above solution into the three-necked flask under mechanical stirring, and finish adding in 30 minutes. After the addition, stir at room temperature for 2 hours. Dry over sodium sulfate, pass through a silica gel column, and remove toluene under reduced pressure to obtain 80.5 g of a reddish-brown oily substance, which is Inter...
Embodiment 2
[0101] A hole-transporting material containing a benzodioxane group in this embodiment has a molecular structure shown in Formula 1:
[0102]
[0103] where: R 1 = R 4 = formula 3 or formula 6, R 2 = R 3 = H;
[0104] The structures shown in the formula 3 and formula 6 are as follows:
[0105]
[0106] The preparation method of the above-mentioned hole-transporting material containing benzodioxane group comprises the following steps:
[0107] (1) Add 4.0g (8.4×10-3 mol) 2,7-dibromospirofluorene, 5.7g (1.68×10 -2 mol) Intermediate 7 (prepared by Example 1), 6.5g (0.067mol) sodium tert-butoxide, 100g toluene, add 0.15g (1.7×10 -4 mol)Pd 2 (dba) 3 , 0.097g (3.4×10 -4 mol)(t-Bu) 3 PH·BF 4 , the temperature was raised to 105-110° C. to react for 7 hours. After the reaction was completed, the reaction liquid was filtered, and the filtrate was washed with 100 g×2 water. The organic phase was dried over anhydrous sodium sulfate, passed through a silica gel column, an...
Embodiment 3
[0114] A hole-transporting material containing a benzodioxane group in this embodiment has a molecular structure shown in Formula 1:
[0115]
[0116] where R 1 = R 2 = Formula 6, R 3 = R 4 =H
[0117] The structure shown in the formula 6 is as follows:
[0118]
[0119] The preparation method of the above-mentioned hole-transporting material containing benzodioxane group comprises the following steps:
[0120] Add 1.04g (2.2×10 -3 mol) 2,2'-dibromospirofluorene, 3.21g (4.4×10 -3 mol) Intermediate 9 (prepared by Example 1), 0.64g (6.6×10 -3 mol) sodium tert-butoxide and 50.0g toluene, add 0.06g (6.6×10 -5 mol)Pd 2 (dba) 3 , 0.025g (1.32×10 -4 mol)(t-Bu) 3 PH·BF 4 , and the temperature was raised to 105-110° C. for 5 hours. After the reaction was completed, the reaction solution was filtered, and the filtrate was washed with 50 g×2 water. The organic phase was dried over anhydrous sodium sulfate, passed through a silica gel column, and toluene was removed u...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More