Submicrometer-scale ZnO Composite Aggregate Arrays Photoanodes for Dye-sensitized Solar Cells
Submicrometer-scale ZnO composite aggregate arrays of nanorods and nanoparticles were prepared by simple wet-chemical route and studied as dye-sensitized solar cells (DSSCs) photoanodes. The ZnO composite aggregate arrays significantly improved the efficiency of DSSCs due to their relatively high su...
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Veröffentlicht in: | Journal of materials science & technology 2013-05, Vol.29 (5), p.415-418 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Submicrometer-scale ZnO composite aggregate arrays of nanorods and nanoparticles were prepared by simple wet-chemical route and studied as dye-sensitized solar cells (DSSCs) photoanodes. The ZnO composite aggregate arrays significantly improved the efficiency of DSSCs due to their relatively high surface area, fast electron transport, and enhanced light-scattering capability. A short current density (Jsc) of 11.7 mA/cm2 and an overall solar-to-electric energy conversion efficiency (η) of 3.17% were achieved for the ZnO composite aggregate DSSCs, which were much higher than those obtained for the monodisperse aggregate DSSCs (Jsc = 6.9 mA/cm2, r/= 1.51 %) and ZnO nanorod array DSSCs (Jsc = 4.2 mA/cm2, η= 0.61%). |
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ISSN: | 1005-0302 1941-1162 |
DOI: | 10.1016/j.jmst.2013.02.004 |