Direct Assembly of Preformed Nanoparticles and Graft Copolymer for the Fabrication of Micrometer-thick, Organized TiO_2 Films: High Efficiency Solid-State Dye-Sensitized Solar Cells

摘要

Dye-sensitized solar cells (DSSCs) have been widely investigated due to their high efficiency, low cost, low manufacturing toxicity and ease of fabrication since they were introduced by the Gratzel group in 1991. The performances of DSSCs can be improved by developing or modifying a dye, nanocrys-talline TiO_2 layer, electrolyte or electrode-electrolyte interface. DSSCs fabricated with a I~-/I_3~- liquid electrolyte exhibit an efficiency greater than 10%, however there has been interest in developing solid-state DSSCs (ssDSSCs) due to the potential to decrease the overall weights of cells and provide long-term durability and flexibility.