Structural and photovoltaic properties of highly ordered ZnFe2O4nanotube arrays fabricated by a facile sol-gel template method

Feifei Liu; Xinyong Li; Qidong Zhao; Yang Hou; Xie Quan; Guohua Chen

doi:10.1016/j.actamat.2009.02.022

Structural and photovoltaic properties of highly ordered ZnFe₂O₄nanotube arrays fabricated by a facile sol-gel template method

Feifei Liu, Xinyong Li, Qidong Zhao, Yang Hou, Xie Quan, Guohua Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

92 Citations (Scopus)

Abstract

Highly ordered ZnFe2O4nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe2O4nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe2O4nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe2O4nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe2O4gel powder, which implies that the photogenerated charges in the nanotubes have a higher redox activity than that of the gel powder. Both materials behave like a p-type semiconductor with photogenerated electrons accumulated at their surface.

Original language	English
Pages (from-to)	2684-2690
Number of pages	7
Journal	Acta Materialia
Volume	57
Issue number	9
DOIs	https://doi.org/10.1016/j.actamat.2009.02.022
Publication status	Published - 1 May 2009
Externally published	Yes

Keywords

Nanotube
Photovoltaic properties
Quantum confinement effects
Template synthesis
ZnFe O 2 4

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.actamat.2009.02.022

Cite this

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title = "Structural and photovoltaic properties of highly ordered ZnFe2O4nanotube arrays fabricated by a facile sol-gel template method",

abstract = "Highly ordered ZnFe2O4nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe2O4nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe2O4nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe2O4nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe2O4gel powder, which implies that the photogenerated charges in the nanotubes have a higher redox activity than that of the gel powder. Both materials behave like a p-type semiconductor with photogenerated electrons accumulated at their surface.",

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AU - Zhao, Qidong

AU - Hou, Yang

AU - Quan, Xie

AU - Chen, Guohua

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AB - Highly ordered ZnFe2O4nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe2O4nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe2O4nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe2O4nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe2O4gel powder, which implies that the photogenerated charges in the nanotubes have a higher redox activity than that of the gel powder. Both materials behave like a p-type semiconductor with photogenerated electrons accumulated at their surface.

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