Dithienylbenzotriazole side chain-containing polymer, preparation method thereof, and organic solar cell device
A technology of benzotriazole and dithiophene, applied in the field of organic semiconductor materials, can solve problems such as low conversion efficiency, and achieve the effects of improved energy conversion efficiency, high electron mobility and novel structure
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Example Embodiment
[0031] Example 1:
[0032] The polymer containing dithiophene benzotriazole side chains of this embodiment, namely poly{6,6,12,12-tetra-n-octyl-2,8-diyl-6,12-dihydroindeno[ 1,2-b:1',2'-e)pyrazine-co-4-(2-(2,5-diylthiophen-3-yl)vinyl)-N-(4-(n-octyloxy (Phenyl)-N-phenylaniline}(P1), (wherein, R1 is n-octyl group, R2 is n-octyl group, n=58), its structural formula is as follows:
[0033]
[0034] The preparation steps of the above polymer are as follows:
[0035] The reaction formula is as follows:
[0036]
[0037] Under the protection of argon, 6,6,12,12-tetran-octyl-2,8-dipinacol borate-6,12-dihydroindeno[1,2-b:1' ,2'-e)pyrazine (191mg, 0.2mmol), 4-(2-(2,5-dibromothiophen-3-yl)vinyl)-N-(4-(n-octyloxy)benzene) -N-Phenylaniline (128mg, 0.2mmol) was added to the flask containing 10ml of toluene solvent, after fully dissolved, potassium carbonate (2mL, 2mol / L) solution was added to the flask, vacuumed to remove oxygen and filled with argon , Then add bistriphenylphosphine palladium di...
Example Embodiment
[0040] Example 2:
[0041] The polymer containing dithiophene benzotriazole side chains of this embodiment is poly{6,6,12,12-tetramethyl-2,8-diyl-6,12-dihydroindeno[1, 2-b: 1',2'-e)pyrazine-co-4-(2-(2,5-diylthiophen-3-yl)vinyl)-N-(4-(n-eicosanoxy (Phenyl)-N-phenylaniline}(P2), (wherein, R1 is methyl, R2 is n-eicosyl, n=12), its structure is as follows:
[0042]
[0043] The preparation steps of the above polymer are as follows:
[0044] The reaction formula is as follows:
[0045]
[0046] Under the protection of a mixture of nitrogen and argon, 6,6,12,12-tetramethyl-2,8-dipinacol borate-6,12-dihydroindeno[1,2-b:1 ',2'-e)pyrazine (169mg, 0.3mmol), 4-(2-(2,5-dibromothiophen-3-yl)vinyl)-N-(4-(n-eicosyloxy ) Benzene)-N-phenylaniline (242mg, 0.3mmol) and 15mL of tetrahydrofuran were added to a 50mL two-necked flask. After being fully dissolved, a mixture of nitrogen and argon was introduced to exhaust the air for about 20 minutes, and then tetratriphenylene Phosphine palladium (4mg, 0...
Example Embodiment
[0048] Example 3:
[0049] The polymer containing dithiophene benzotriazole side chains of this embodiment is poly{6,6,12,12-tetran-eicosyl-2,8-diyl-6,12-dihydroindeno [1,2-b:1',2'-e]pyrazine-co-4-(2-(2,5-diylthiophen-3-yl)vinyl)-N-(4-(methoxy (Phenyl)-N-phenylaniline}(P3), (wherein, R1 is n-eicosyl, R2 is methyl, n=84), its structure is as follows:
[0050]
[0051] The preparation steps of the above polymer are as follows:
[0052] The reaction formula is as follows:
[0053]
[0054] Under the protection of nitrogen, the 6,6,12,12-tetran-eicosyl-2,8-dipinacol borate-6,12-dihydroindeno[1,2-b:1', 2'-e) pyrazine (488mg, 0.3mmol), 4-(2-(2,5-dibromothiophen-3-yl)vinyl)-N-(4-(methoxy)benzene)-N -Phenylaniline (179mg, 0.33mmol), palladium acetate (3.5mg, 0.015mmol) and tris (o-methylphenyl) phosphine (21mg, 0.06mmol) were added to 12mL of N,N-dimethylformaldehyde Add potassium carbonate (3mL, 2mol / L) solution to the amide flask after fully dissolving, and then purge the flask with nit...
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