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dc.contributor.authorHuang, Jingen_US
dc.contributor.authorWang, Yangen_US
dc.contributor.authorLiu, Xueqinen_US
dc.contributor.authorLi, Yinchangen_US
dc.contributor.authorHu, Xiaoqinen_US
dc.contributor.authorHe, Bingen_US
dc.contributor.authorShu, Zhuen_US
dc.contributor.authorLi, Zhenen_US
dc.contributor.authorZhao, Yanlien_US
dc.identifier.citationHuang, J., Wang, Y., Liu, X., Li, Y., Hu, X., He, B., Shu, Z., Li, Z. & Zhao, Y. (2019). Synergistically enhanced charge separation in BiFeO3/Sn:TiO2 nanorod photoanode via bulk and surface dual modifications. Nano Energy, 59, 33-40.
dc.description.abstractCharge separation is regarded as a vital factor determining the photoelectrochemical (PEC) performance of TiO2 photoanode. Herein, for the first time, the synergistic effect between Sn doping and ferroelectric BiFeO3 (BFO) coating in BFO/Sn:TiO2 composite photoanode for enhanced PEC performance is reported. The Sn doping leads to enhanced charge carrier density due to efficient charge separation. After the deposition of ferroelectric BFO thin film, the charge-separation efficiency (ηsep) is further enhanced because of spontaneous polarization of the BFO layer. More importantly, the PEC performance could be further improved by positive polarization of the BFO/Sn:TiO2 composite photoanode, achieving remarkable photocurrent density (Jph) of 1.76 mA cm−2 at 1.23 V vs. reversible hydrogen electrode and high stability. This work indicates that the dual modification (i.e. Sn doping in bulk and ferroelectric BFO thin film deposition on the surface) holds a great promise in improving the PEC performance of photoanodes by promoting charge separation, which can be extended to other common photoanode materials, such as Fe2O3 and BiVO4.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.relation.ispartofNano Energyen_US
dc.rights© 2019 Elsevier Ltd. All rights reserved.en_US
dc.titleSynergistically enhanced charge separation in BiFeO3/Sn:TiO2 nanorod photoanode via bulk and surface dual modificationsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.subject.keywordsCharge Separationen_US
dc.subject.keywordsFerroelectric Materialsen_US
dc.description.acknowledgementThe work was supported by the National Natural Science Foundation of China (41502030), the Natural Science Foundation of Hubei Province of China (2017CFB190), the Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) (CUG170638), and the Open Foundation of Engineering Research Center of Nano-Geomaterials of Ministry of Education (NGM2017KF002 and NGM2018KF017). This research is also supported by the Singapore Academic Research Fund (RG5/16, RG11/17 and RG114/17).en_US
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