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Three-Dimensional Lupinus-like TiO2 Nanorod@Sn3O4 Nanosheet Hierarchical Heterostructured Arrays as Photoanode for Enhanced Photoelectrochemical Performance
journal contribution
posted on 2017-10-19, 00:00 authored by Luping Zhu, Hao Lu, Dong Hao, Lingling Wang, Zihua Wu, Lijun Wang, Peng Li, Jinhua YeA novel
photoelectrode of three-dimensional (3D) lupinus-like TiO2 nanorod@Sn3O4 nanosheet hierarchical heterostructured
arrays (TiO2@Sn3O4 HHAs) on a transparent
F-doped SnO2 glass substrate was designed and fabricated
by a two-step solvothermal growth process. Photoelectrochemical (PEC)
measurements showed that the 3D lupinus-like TiO2@Sn3O4 HHAs photoelectrode displayed enhanced photocurrent
density (3-fold increase with respect to that of pure TiO2), improved conversion efficiency, more negative onset potential
(from −0.13 to −0.33 V vs normal hydrogen electrode),
and higher light on/off cycle stability. The improved PEC properties
may be ascribable to the enhancement of light harvesting and large
contact area with the electrolyte by increased surface area as well
as improvement of charge transfer and collection through the synergistic
effects between band structures and morphology.
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surface areaF-doped SnO 2 glass substratecharge transfersolvothermal growth processEnhanced Photoelectrochemical PerformanceSn 3 O 4 HHAs photoelectrodePEC propertiesconversion efficiencycontact areaheterostructured arraysband structuresSn 3 O 4 HHAsnovel photoelectrodeTiO 23 D lupinus-like TiO 2light harvesting
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