Carbazole hole transport material as well as synthesis method and application thereof
A technology of hole transport material and synthesis method, which is applied in the field of Cs2AgBiBr6 double perovskite solar cells, carbazole hole transport materials and their synthesis, to achieve the effects of improving stability, avoiding internal energy loss, and improving efficiency
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Embodiment 1
[0041] Synthesis of Carbazole-Based Hole Transport Material PTDCZ-TFNP and Its Application in Cs 2 AgBiBr 6 Applications in double perovskite solar cells:
[0042]
[0043] (i) 2,5-dibromothiophene (1.5g, 3.76mmol), compound 1 (0.43g, 1.79mmol), Xphos Pd G2 (0.04g, 0.05mmol), 0.5M K were added to a dry reaction vessel 3 PO 4 The aqueous solution (24 mL) and the solvent tetrahydrofuran (12 mL) were stirred uniformly under nitrogen protection, and heated to 40 °C for 20 h. After the reaction, the reaction solution was cooled to room temperature and extracted with dichloromethane solution (150 mL) to separate the reaction. Liquid three times, the organic layer was collected, the solvent was removed under reduced pressure, the collected material was separated and purified by silica gel chromatography, using petroleum ether / dichloromethane (3:1 vol / vol) as the eluent, and vacuum-dried to obtain a yellow-green solid compound 2 (2.02 g, yield: 86%). 1 H NMR (400MHz, DMSO-d 6 ...
Embodiment 2
[0056] Synthesis of Carbazole-Based Hole Transport Material PTDCZ-TFNP and Its Application in Cs 2 AgBiBr 6 Applications in double perovskite solar cells:
[0057]
[0058] (i) 2,5-dibromothiophene (1.5g, 3.76mmol), compound 1 (0.43g, 1.79mmol), Xphos Pd G2 (0.04g, 0.05mmol), 0.5M K were added to a dry reaction vessel 3 PO 4 The aqueous solution (24 mL) and the solvent tetrahydrofuran (10 mL) were stirred uniformly under nitrogen protection, and heated to 50 °C for 24 h. After the reaction was completed, the reaction solution was cooled to room temperature and extracted with dichloromethane solution (150 mL) to separate the reaction. liquid three times, collect the organic layer, remove the solvent under reduced pressure, and separate and purify the collected material with a silica gel column, using petroleum ether / dichloromethane (3:1 vol / vol) as the eluent, and vacuum drying to obtain a yellow-green solid compound 2 (2.02 g, yield: 86%). 1 H NMR (400MHz, DMSO-d 6 )δ8...
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