Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 58656-04-5, is researched, Molecular C18H34BF4P, about Simple synthesis of novel terthiophene-based D-A1-D-A2 polymers for polymer solar cells, the main research direction is terthiophene polymer solar cell fabrication.Recommanded Product: Tricyclohexylphosphonium tetrafluoroborate.
Direct arylation was used to synthesize a series of novel terthiophene (T3)-based D-A1-D-A2 polymers and D-A2-D monomers in fewer synthetic steps. In these T3-based D-A1-D-A2 polymers, pyrrolo[3,4-c]pyrrole-1,4-dione (DPP) was selected as the first acceptor A1, octyl-thieno[3,4-c]pyrrole-4,6-dione (TPD) or 2,1,3-benzothiadiazole (BT) or fluorinated benzothiadiazole (FBT) was selected as the secondary acceptor A2. T2-based polymer with the bithiophene segments (T2) as the donor was synthesized for comparison, too. UV-vis absorption, electrochem. properties, blend film morphol., and photovoltaic properties of the polymers were studied to explore the effects of the oligothiophene unit and secondary acceptor moiety (A2), meanwhile, the fluorine substitution effect was also discussed. It is shown that the change of donor segment from T2 to T3 introduces a difference in the energy levels, crystallinity, polymer:PC71BM morphol. and PSC performances between the T2-based and T3-based D-A1-D-A2 polymers. Varying the secondary acceptor (A2) from BT to TPD also promotes the crystallinity and backbone planarity leading to enhanced PSC performances of the T3-based D-A1-D-A2 polymer. Although the effectiveness of fluorine substitution for tuning the UV-vis absorption, energy levels and degree of crystallinity has been demonstrated, the insufficient EDONORLUMO – EPCBMLUMO energy offset and poor miscibility of polymer:PC71BM limit the short circuit current (Jsc). In addition, the highest Jsc of 12.98 mA cm-2 is achieved for P1, while the higher HOMO level limits the open circuit voltage (Voc) and leads to a power conversion efficiency (PCE) of 4.36%.
This compound(Tricyclohexylphosphonium tetrafluoroborate)Recommanded Product: Tricyclohexylphosphonium tetrafluoroborate was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem