Open-ended TiO2nanotubes formed by two-step anodization and their application in dye-sensitized solar cells

Cho Tung Yip; Min Guo; Haitao Huang; Li Min Zhou; Yu Wang; Chuanjun Huang

doi:10.1039/c2nr11317a

Open-ended TiO₂nanotubes formed by two-step anodization and their application in dye-sensitized solar cells

Cho Tung Yip, Min Guo, Haitao Huang, Li Min Zhou, Yu Wang, Chuanjun Huang

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

47 Citations (Scopus)

Abstract

We demonstrate a simple method to fabricate open-ended TiO2nanotube (NT) based dye-sensitized solar cells (DSSCs), where the NTs are attached to either TiO2nanorods (NRs) grown on fluorine-doped tin oxide (FTO) or FTO directly by nanoparticles (NPs). A completely hole-through TiO2NT layer is fabricated via a two-step anodization with heat treatment immediately after the first anodization. DSSCs with the open-ended NTs show better photovoltaic performance than those with close-ended NTs, due to the enhanced charge transport in the open-ended structure. Under optimum conditions, DSSCs fabricated with the open-ended NT layer exhibit a short circuit current density (Jsc) of 19.10 mA cm-2, an open circuit voltage (Voc) of 0.68 V, a fill factor (FF) of 0.49, and a power conversion efficiency (eff) of 6.3%.

Original language	English
Pages (from-to)	448-450
Number of pages	3
Journal	Nanoscale
Volume	4
Issue number	2
DOIs	https://doi.org/10.1039/c2nr11317a
Publication status	Published - 21 Jan 2012

ASJC Scopus subject areas

General Materials Science

UN SDGs

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

More information

10.1039/c2nr11317a

Cite this

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title = "Open-ended TiO2nanotubes formed by two-step anodization and their application in dye-sensitized solar cells",

abstract = "We demonstrate a simple method to fabricate open-ended TiO2nanotube (NT) based dye-sensitized solar cells (DSSCs), where the NTs are attached to either TiO2nanorods (NRs) grown on fluorine-doped tin oxide (FTO) or FTO directly by nanoparticles (NPs). A completely hole-through TiO2NT layer is fabricated via a two-step anodization with heat treatment immediately after the first anodization. DSSCs with the open-ended NTs show better photovoltaic performance than those with close-ended NTs, due to the enhanced charge transport in the open-ended structure. Under optimum conditions, DSSCs fabricated with the open-ended NT layer exhibit a short circuit current density (Jsc) of 19.10 mA cm-2, an open circuit voltage (Voc) of 0.68 V, a fill factor (FF) of 0.49, and a power conversion efficiency (eff) of 6.3%.",

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AU - Yip, Cho Tung

AU - Guo, Min

AU - Huang, Haitao

AU - Zhou, Li Min

AU - Wang, Yu

AU - Huang, Chuanjun

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AB - We demonstrate a simple method to fabricate open-ended TiO2nanotube (NT) based dye-sensitized solar cells (DSSCs), where the NTs are attached to either TiO2nanorods (NRs) grown on fluorine-doped tin oxide (FTO) or FTO directly by nanoparticles (NPs). A completely hole-through TiO2NT layer is fabricated via a two-step anodization with heat treatment immediately after the first anodization. DSSCs with the open-ended NTs show better photovoltaic performance than those with close-ended NTs, due to the enhanced charge transport in the open-ended structure. Under optimum conditions, DSSCs fabricated with the open-ended NT layer exhibit a short circuit current density (Jsc) of 19.10 mA cm-2, an open circuit voltage (Voc) of 0.68 V, a fill factor (FF) of 0.49, and a power conversion efficiency (eff) of 6.3%.

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