Hydrothermal synthesis of high electron mobility Zn-doped SnO2 nanoflowers as photoanode material for efficient dye-sensitized solar cells

Xincun Dou; Dharani Sabba; Nripan Mathews; Lydia Helena Wong; Yeng Ming Lam; Subodh Mhaisalkar

doi:10.1021/cm201366z

Hydrothermal synthesis of high electron mobility Zn-doped SnO₂ nanoflowers as photoanode material for efficient dye-sensitized solar cells

Xincun Dou^*, Dharani Sabba, Nripan Mathews, Lydia Helena Wong, Yeng Ming Lam, Subodh Mhaisalkar

^*Corresponding author for this work

Nanyang Technological University

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

223 Citations (Scopus)

Abstract

This paper demonstrates the potential of a new photoanode material Zn-doped SnO₂ nanoflower for efficient dye-sensitized solar cells. The nanoflower structure is synthesized using a hydrothermal method and is shown to have electron mobility higher than that of the conventional titania photoanode. The overall power conversion efficiency for the Zn-doped SnO₂ nanoflower dye-sensitized solar cell reaches 3.00% with a V_oc of 0.78 V and increases to 6.78% after TiCl₄ treatment. Electrochemical impedance spectroscopy measurement showed that the Zn-doped SnO₂ nanoflower film has a large intrinsic electron mobility that favors the fast charge transport. This work shows that Zn-doped SnO₂ nanoflower material is a most interesting material and has good potential for application in solar cells.

Original language	English
Pages (from-to)	3938-3945
Number of pages	8
Journal	Chemistry of Materials
Volume	23
Issue number	17
DOIs	https://doi.org/10.1021/cm201366z
Publication status	Published - Sept 13 2011
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Chemical Engineering
Materials Chemistry

Keywords

dye-sensitized solar cells
EIS
electron mobility
nanoflower
photoanode
Zn doped SnO

Access to Document

10.1021/cm201366z

Cite this

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title = "Hydrothermal synthesis of high electron mobility Zn-doped SnO2 nanoflowers as photoanode material for efficient dye-sensitized solar cells",

abstract = "This paper demonstrates the potential of a new photoanode material Zn-doped SnO2 nanoflower for efficient dye-sensitized solar cells. The nanoflower structure is synthesized using a hydrothermal method and is shown to have electron mobility higher than that of the conventional titania photoanode. The overall power conversion efficiency for the Zn-doped SnO2 nanoflower dye-sensitized solar cell reaches 3.00% with a Voc of 0.78 V and increases to 6.78% after TiCl4 treatment. Electrochemical impedance spectroscopy measurement showed that the Zn-doped SnO2 nanoflower film has a large intrinsic electron mobility that favors the fast charge transport. This work shows that Zn-doped SnO2 nanoflower material is a most interesting material and has good potential for application in solar cells.",

keywords = "dye-sensitized solar cells, EIS, electron mobility, nanoflower, photoanode, Zn doped SnO",

author = "Xincun Dou and Dharani Sabba and Nripan Mathews and Wong, {Lydia Helena} and Lam, {Yeng Ming} and Subodh Mhaisalkar",

year = "2011",

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AU - Dou, Xincun

AU - Sabba, Dharani

AU - Mathews, Nripan

AU - Wong, Lydia Helena

AU - Lam, Yeng Ming

AU - Mhaisalkar, Subodh

PY - 2011/9/13

Y1 - 2011/9/13

N2 - This paper demonstrates the potential of a new photoanode material Zn-doped SnO2 nanoflower for efficient dye-sensitized solar cells. The nanoflower structure is synthesized using a hydrothermal method and is shown to have electron mobility higher than that of the conventional titania photoanode. The overall power conversion efficiency for the Zn-doped SnO2 nanoflower dye-sensitized solar cell reaches 3.00% with a Voc of 0.78 V and increases to 6.78% after TiCl4 treatment. Electrochemical impedance spectroscopy measurement showed that the Zn-doped SnO2 nanoflower film has a large intrinsic electron mobility that favors the fast charge transport. This work shows that Zn-doped SnO2 nanoflower material is a most interesting material and has good potential for application in solar cells.

AB - This paper demonstrates the potential of a new photoanode material Zn-doped SnO2 nanoflower for efficient dye-sensitized solar cells. The nanoflower structure is synthesized using a hydrothermal method and is shown to have electron mobility higher than that of the conventional titania photoanode. The overall power conversion efficiency for the Zn-doped SnO2 nanoflower dye-sensitized solar cell reaches 3.00% with a Voc of 0.78 V and increases to 6.78% after TiCl4 treatment. Electrochemical impedance spectroscopy measurement showed that the Zn-doped SnO2 nanoflower film has a large intrinsic electron mobility that favors the fast charge transport. This work shows that Zn-doped SnO2 nanoflower material is a most interesting material and has good potential for application in solar cells.

KW - dye-sensitized solar cells

KW - EIS

KW - electron mobility

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KW - photoanode

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