Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1332383 | Journal of Solid State Chemistry | 2013 | 4 Pages |
This study presents the fabrication of a novel dye-sensitized solar cell with Sb2S3-modified TiO2 nanowire (NW) arrays/TiO2 nanoparticles (NP) (TiO2(NWs)/TiO2(NPs)/Sb2S3) as the anodes and N719 dye as the sensitizer. A solar conversion efficiency of 4.91% at 1 sun illumination was achieved for the composite cell, which is markedly higher than the efficiency rates obtained using TiO2 and TiO2(NWs)/Sb2S3/TiO2(NPs) NW cells, calculated at 2.36% and 3.11%, respectively. The improved efficiency results from the large surface area of the NPs, as well as the expansion of the light absorption region and high absorption coefficient by Sb2S3 surface modification.
Graphical abstractA novel TiO2(NWs)/TiO2(NPs)/Sb2S3 dye sensitized solar cells (DSSCs) is fabricated, a solar conversion efficiency of 4.91 % at 1 sun illumination is achieved.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We fabricate sandwich structured TiO2 dye-sensitized solar cells. ► The anode of the solar cells consist of Sb2S3 modified TiO2 nanowire arrays/TiO2 nanopartices. ► A solar conversion efficiency of 4.91% at 1 sun illumination is achieved. ► The high efficiency results from large surface area and expanded light adsorption of the anode.