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Author Zhou, Yi ♦ Wang, Yutang ♦ Li, Mengyao ♦ Li, Xuzhi ♦ Yi, Qin ♦ Deng, Pan ♦ Wu, Hongyan
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NANOSCIENCE AND NANOTECHNOLOGY ♦ ABSORPTION ♦ CONVERSION ♦ DYES ♦ EFFICIENCY ♦ MICROSPHERES ♦ MICROSTRUCTURE ♦ NANOSTRUCTURES ♦ PERFORMANCE ♦ SCANNING ELECTRON MICROSCOPY ♦ SEA URCHINS ♦ SOLAR CELLS ♦ SPECIFIC SURFACE AREA ♦ SYNTHESIS ♦ TITANIUM OXIDES
Abstract Graphical abstract: I–V characteristics of different TiO{sub 2} microspheres based DSSCs (a) 3D sphere-like, (b) 3D flower-like, (c) 3D sea-urchin-like. - Highlights: • 3D sea-urchin-like TiO{sub 2} was synthesized by solvothermal method. • The effects of preparation parameters on the microstructure of the microspheres were investigated. • The photoelectric properties of 3D sea-urchin-like TiO{sub 2} were studied upon DSSCs. • The PCE of the 3D sea-urchin-like TiO{sub 2} was higher than that of other morphologies. - Abstract: Three-dimensional (3D) sea-urchin-like TiO{sub 2} microspheres were successfully synthesised by solvothermal method. The effects of preparation parameters including reaction temperature, concentration and mass fraction of precursor, and solvent volume on the microstructure of the microspheres were investigated. Results of scanning electron microscopy showed that the preparation parameters played a critical role in the morphology of 3D sea-urchin-like TiO{sub 2}. In addition, when the sea-urchin-like TiO{sub 2} nanostructures were used as the dye-sensitized solar cells (DSSCs) anode, the power-conversion efficiency was higher than that of other morphologies, which was due to the special 3D hierarchical nanostructure, large specific surface area, and enhanced absorption of UV–vis of the TiO{sub 2} nanostructures.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 66


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