Efficient light-scattering functionalized TiO2 photoanodes modified with cyanobiphenyl-based benzimidazole for dye-sensitized solar cells with additive-free electrolytes
作者： Jie Zhao , Baoquan Sun , Lihua Qiu , Huizi Caocen , Qing Li
DOI: 10.1039/C2JM32607H
关键词:
摘要: Light-scattering functionalized cyanobiphenyl-based benzimidazole was synthesized and applied in the surface modification of dyed TiO2 photoanodes for dye-sensitized solar cells (DSSCs). DSSCs based on ionic liquid all-solid-state electrolytes were fabricated characterized, without addition additives electrolytes. Compared with containing additive N-butylbenzimidazole (NBB), could enhance values open-circuit photovoltage (Voc), short-circuit photocurrent density (Jsc) overall PCE DSSCs, due to suppressed charge recombination rate, conductivity optimization enhanced light harvesting capability at photoanode/electrolyte interface. Under simulated air mass 1.5 spectrum illuminations 100 mW cm−2, devices achieved a cell efficiency ∼6.63% ∼5.82% electrolytes, respectively. These results provide an alternative strategy high performance additive-free
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