TiO                         2                          wedgy nanotubes array flims for photovoltaic enhancement

Hao Pan; Jieshu Qian; Ang Yu; Meigui Xu; Luo Tu; Qingli Chai; Xingfu Zhou

doi:10.1016/j.apsusc.2011.01.021

TiO ₂ wedgy nanotubes array flims for photovoltaic enhancement

Hao Pan, Jieshu Qian, Ang Yu, Meigui Xu, Luo Tu, Qingli Chai, Xingfu Zhou

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

In this study, TiO ₂ wedgy nanotubes with rectangular cross-sections were fabricated on transparent conductive substrates by using TiO ₂ nanorods as the precursor via the anisotropic etching route. TiO2 nanotubes with V-shaped hollow structure and the special crystal plane exposed on the tube wall possess nature of high surface area for more dye molecules absorption, and the strong light scattering effects and dual-channel for effective electron transport of the TiO ₂ V-shaped nanotubes based dye-sensitized solar cell exhibit a remarkable photovoltaic enhancement compared with the TiO ₂ nanorods. The photoanode based on our V-shaped TiO ₂ nanotubes with a length of 1.5 μm show a 123% increase of the dye loading and a 182% improvement in the overall conversion efficiency when compared with 4 μm rutile TiO ₂ nanorods photoanode.

Original language	English
Pages (from-to)	5059-5063
Number of pages	5
Journal	Applied Surface Science
Volume	257
Issue number	11
DOIs	https://doi.org/10.1016/j.apsusc.2011.01.021
State	Published - 15 Mar 2011

Keywords

Dye-sensitized solar cell
Light-scattering

UN SDGs

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

Access to Document

10.1016/j.apsusc.2011.01.021

Cite this

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title = " TiO 2 wedgy nanotubes array flims for photovoltaic enhancement ",

abstract = " In this study, TiO 2 wedgy nanotubes with rectangular cross-sections were fabricated on transparent conductive substrates by using TiO 2 nanorods as the precursor via the anisotropic etching route. TiO2 nanotubes with V-shaped hollow structure and the special crystal plane exposed on the tube wall possess nature of high surface area for more dye molecules absorption, and the strong light scattering effects and dual-channel for effective electron transport of the TiO 2 V-shaped nanotubes based dye-sensitized solar cell exhibit a remarkable photovoltaic enhancement compared with the TiO 2 nanorods. The photoanode based on our V-shaped TiO 2 nanotubes with a length of 1.5 μm show a 123% increase of the dye loading and a 182% improvement in the overall conversion efficiency when compared with 4 μm rutile TiO 2 nanorods photoanode.",

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author = "Hao Pan and Jieshu Qian and Ang Yu and Meigui Xu and Luo Tu and Qingli Chai and Xingfu Zhou",

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T1 - TiO 2 wedgy nanotubes array flims for photovoltaic enhancement

AU - Pan, Hao

AU - Qian, Jieshu

AU - Yu, Ang

AU - Xu, Meigui

AU - Tu, Luo

AU - Chai, Qingli

AU - Zhou, Xingfu

PY - 2011/3/15

Y1 - 2011/3/15

N2 - In this study, TiO 2 wedgy nanotubes with rectangular cross-sections were fabricated on transparent conductive substrates by using TiO 2 nanorods as the precursor via the anisotropic etching route. TiO2 nanotubes with V-shaped hollow structure and the special crystal plane exposed on the tube wall possess nature of high surface area for more dye molecules absorption, and the strong light scattering effects and dual-channel for effective electron transport of the TiO 2 V-shaped nanotubes based dye-sensitized solar cell exhibit a remarkable photovoltaic enhancement compared with the TiO 2 nanorods. The photoanode based on our V-shaped TiO 2 nanotubes with a length of 1.5 μm show a 123% increase of the dye loading and a 182% improvement in the overall conversion efficiency when compared with 4 μm rutile TiO 2 nanorods photoanode.

AB - In this study, TiO 2 wedgy nanotubes with rectangular cross-sections were fabricated on transparent conductive substrates by using TiO 2 nanorods as the precursor via the anisotropic etching route. TiO2 nanotubes with V-shaped hollow structure and the special crystal plane exposed on the tube wall possess nature of high surface area for more dye molecules absorption, and the strong light scattering effects and dual-channel for effective electron transport of the TiO 2 V-shaped nanotubes based dye-sensitized solar cell exhibit a remarkable photovoltaic enhancement compared with the TiO 2 nanorods. The photoanode based on our V-shaped TiO 2 nanotubes with a length of 1.5 μm show a 123% increase of the dye loading and a 182% improvement in the overall conversion efficiency when compared with 4 μm rutile TiO 2 nanorods photoanode.

KW - Dye-sensitized solar cell

KW - Light-scattering

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