Structural and photovoltaic properties of highly ordered ZnFe2O4 nanotube 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 ZnFe₂O₄ nanotube arrays fabricated by a facile sol-gel template method

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

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

95 Citations (Scopus)

Abstract

Highly ordered ZnFe₂O₄ nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe₂O₄ nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe₂O₄ nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe₂O₄ nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe₂O₄ gel 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. © 2009 Acta Materialia Inc.

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

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Nanotube
Photovoltaic properties
Quantum confinement effects
Template synthesis
ZnFe2O4

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title = "Structural and photovoltaic properties of highly ordered ZnFe2O4 nanotube arrays fabricated by a facile sol-gel template method",

abstract = "Highly ordered ZnFe2O4 nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe2O4 nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe2O4 nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe2O4 nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe2O4 gel 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. {\textcopyright} 2009 Acta Materialia Inc.",

keywords = "Nanotube, Photovoltaic properties, Quantum confinement effects, Template synthesis, ZnFe2O4",

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T1 - Structural and photovoltaic properties of highly ordered ZnFe2O4 nanotube arrays fabricated by a facile sol-gel template method

AU - Liu, Feifei

AU - Li, Xinyong

AU - Zhao, Qidong

AU - Hou, Yang

AU - Quan, Xie

AU - Chen, Guohua

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Highly ordered ZnFe2O4 nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe2O4 nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe2O4 nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe2O4 nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe2O4 gel 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. © 2009 Acta Materialia Inc.

AB - Highly ordered ZnFe2O4 nanotube arrays were successfully prepared using porous anodic aluminum oxide (AAO) template from sol-gel solution. The ZnFe2O4 nanotubes are orderly arranged in parallel and each nanotube is composed of many agglutinating nanoparticles. The UV-vis absorption and surface photovoltage spectra of the ZnFe2O4 nanotubes and gel powders have been compared. The photovoltaic response threshold of the ZnFe2O4 nanotubes exhibited a blue-shift of about 150 nm with respect to that of the ZnFe2O4 gel 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. © 2009 Acta Materialia Inc.

KW - Nanotube

KW - Photovoltaic properties

KW - Quantum confinement effects

KW - Template synthesis

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DO - 10.1016/j.actamat.2009.02.022

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JO - Acta Materialia

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