کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
188553 | 459662 | 2012 | 4 صفحه PDF | دانلود رایگان |
A bimodal structured TiO2 nanowire (NW) was synthesized via metal glycolate-mediated method. Each large NW was comprised of a few nanometers-sized anatase particles, which led to a high specific surface area, 50.4 m2 g−1. When the bimodal TiO2 NWs were coated onto a spherical nanoparticle-based active layer of the photoelectrode for a dye-sensitized solar cell, the reflectance of the photoelectrode increased by 4-times, compared to a bare active layer. The TiO2 NWs increased quantum efficiency of the dye-sensitized solar cell, from 400 to 800 nm wavelengths, which was attributed to both the light-scattering and charge generating effects due to the capability of reflecting incident light and adsorbing large amount of dye molecules.
► Micrometer-sized TiO2 wires comprised of very tiny nanoparticles were synthesized.
► The nanowire has a high specific surface area.
► The nanowire exhibits efficient light-scattering property.
► The nanowire improved light-harvesting property of dye-sensitized solar cells.
Journal: Electrochimica Acta - Volume 74, 15 July 2012, Pages 83–86