Elsevier, Organic Electronics, 11(15), p. 2847-2854, 2014
DOI: 10.1016/j.orgel.2014.08.020
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In this article, a typical silver-loaded anatase TiO2 nanotube (Ag-TNTs) was developed and assembled in DSSCs. By blending the Ag-TNTs and TiO2 nanoparticles as the composite photoanode, this hybrid nanostructure exhibits a promising architecture for accelerating electron transport as well as enhancing dye adsorption. These nanotubes could provide direct charge transfer pathways and increase electrolyte penetration in comparison with the TiO2 nanoparticles alone network. Moreover, the presence of the Ag nanoparticles could enhance the light harvesting efficiency and promote the charge separation, which further improves the performance of the DSSCs. The DSSC with metal-modified hybrid nanostructures has achieved an efficiency of 8.19% which is about 56% higher than DSSCs based on TiO2 nanoparticles photoanode with 5.26%.