In situ gelation of Al(III)-4-tert-butylpyridine based metal-organic gel electrolyte for efficient quasi-solid-state dye-sensitized solar cells

摘要: Abstract A novel Al(III)-4-tert-butylpyridine (TBP) gel electrolyte is successfully achieved by a simple and facile in situ gelation method applied as quasi-solid-state for dye-sensitized solar cells (DSSCs). Through directly adding Al3+ into the TBP solution, induced hydrolysis of coordination interaction between facilitates formation metal-organic gels(MOGs), which such bi-functional molecules will act both gelators active additives to tailor performance electrolytes. In addition, electrolytes can largely preserve properties liquid penetrate well TiO2 photoanode film. Both affect cells. The Jsc decrease with increasing concentration due enhanced strength viscosity electrolytes, while competition causes conduction band edge shift electron recombination, leading variation Voc. Herein, tuning molar ratio Al3+/TBP, an impressive conversion efficiency 8.25% obtained, indicating promising protocol preparing MOGs not only achieve high cells, but also opens up extended scopes other energy-related fields catalysis.