Improved dye-sensitized solar cell with a ZnO nanotree photoanode by hydrothermal method

Shou Yi Kuo; Jui Fu Yang; Fang I. Lai

doi:10.1186/1556-276X-9-206

Improved dye-sensitized solar cell with a ZnO nanotree photoanode by hydrothermal method

Shou Yi Kuo, Jui Fu Yang, Fang I. Lai^*

^*Corresponding author for this work

Department of Electronic Engineering

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

21 Scopus citations

Abstract

This study investigated the influence of ZnO nanostructures on dye adsorption to increase the photovoltaic conversion efficiency of solar cells. ZnO nanostructures were grown in both tree-like and nanorod (NR) arrays on an AZO/FTO film structure by using a hydrothermal method. The results were observed in detail using X-ray diffraction, field-emission scanning electron microscopy (FE-SEM), UV-visible spectrophotometry, electrochemical impedance spectroscopy, and solar simulation. The selective growth of tree-like ZnO was found to exhibit higher dye adsorption loading and conversion efficiency than ZnO NRs. The multiple 'branches' of 'tree-like nanostructures' increases the surface area for higher light harvesting and dye loading while reducing charge recombination. These improvements result in a 15% enhancement in power conversion. The objective of this study is to facilitate the development of a ZnO-based dye-sensitized solar cell.

Original language	English
Article number	206
Pages (from-to)	1-6
Number of pages	6
Journal	Nanoscale Research Letters
Volume	9
Issue number	1
DOIs	https://doi.org/10.1186/1556-276X-9-206
State	Published - 2014

Keywords

Dye-sensitized solar cell
Nanorods
Tree-like
Zinc oxide

UN SDGs

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

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10.1186/1556-276X-9-206

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AU - Yang, Jui Fu

AU - Lai, Fang I.

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Y1 - 2014

N2 - This study investigated the influence of ZnO nanostructures on dye adsorption to increase the photovoltaic conversion efficiency of solar cells. ZnO nanostructures were grown in both tree-like and nanorod (NR) arrays on an AZO/FTO film structure by using a hydrothermal method. The results were observed in detail using X-ray diffraction, field-emission scanning electron microscopy (FE-SEM), UV-visible spectrophotometry, electrochemical impedance spectroscopy, and solar simulation. The selective growth of tree-like ZnO was found to exhibit higher dye adsorption loading and conversion efficiency than ZnO NRs. The multiple 'branches' of 'tree-like nanostructures' increases the surface area for higher light harvesting and dye loading while reducing charge recombination. These improvements result in a 15% enhancement in power conversion. The objective of this study is to facilitate the development of a ZnO-based dye-sensitized solar cell.

AB - This study investigated the influence of ZnO nanostructures on dye adsorption to increase the photovoltaic conversion efficiency of solar cells. ZnO nanostructures were grown in both tree-like and nanorod (NR) arrays on an AZO/FTO film structure by using a hydrothermal method. The results were observed in detail using X-ray diffraction, field-emission scanning electron microscopy (FE-SEM), UV-visible spectrophotometry, electrochemical impedance spectroscopy, and solar simulation. The selective growth of tree-like ZnO was found to exhibit higher dye adsorption loading and conversion efficiency than ZnO NRs. The multiple 'branches' of 'tree-like nanostructures' increases the surface area for higher light harvesting and dye loading while reducing charge recombination. These improvements result in a 15% enhancement in power conversion. The objective of this study is to facilitate the development of a ZnO-based dye-sensitized solar cell.

KW - Dye-sensitized solar cell

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KW - Zinc oxide

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Improved dye-sensitized solar cell with a ZnO nanotree photoanode by hydrothermal method

Abstract

Keywords

UN SDGs

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