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Hierarchical microspheres constructed from a TiO2 core and a SnO2 shell have been successfully fabricated using a one-step solvothermal method. The synthesized products were characterized by XRD, SEM, TEM and FT-IR measurements. It was found that the concentration of precursor Sn4+ in the reaction system plays a key role in the formation of the hierarchical microspheres. The core-shell microspheres of TiO2@SnO2 were formed by a self-assembly process, accompanied by the Kirkendall effect. These core-shell microspheres of TiO2@SnO2 have been used for the first time as the electrode for C106 dye-sensitized solar cells; they exhibited an efficiency of 6.24%. This might be attributed to large surface area and hierarchical structure of the microspheres, leading to light scattering, an increase of dye adsorption, a suppression of charge recombination and prolonging the electron Lifetime. (C) 2014 Elsevier Ltd. All rights reserved.
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NANO ENERGY
ISSN: 2211-2855
Year: 2014
Volume: 5
Page: 82-90
1 0 . 3 2 5
JCR@2014
1 6 . 8 0 0
JCR@2023
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:355
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 50
SCOPUS Cited Count: 55
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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