Enhanced electron extraction from template-free 3D nanoparticulate transparent conducting oxide (TCO) electrodes for dye-sensitized solar cells

Zhenzhen Yang; Shanmin Gao; Tao Li; Fa-Qian Liu; Yang Ren; Tao Xu

doi:10.1021/am301090a

Enhanced electron extraction from template-free 3D nanoparticulate transparent conducting oxide (TCO) electrodes for dye-sensitized solar cells

Zhenzhen Yang, Shanmin Gao, Tao Li, Fa-Qian Liu, Yang Ren, Tao Xu

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

46 Citations (Scopus)

Abstract

The semiconducting metal oxide-based photoanodes in the most efficient dye-sensitized solar cells (DSSCs) desires a low doping level to promote charge separation, which, however, limits the subsequent electron extraction in the slow diffusion regime. These conflicts are mitigated in a new photoanode design that decouples the charge separation and extraction functions. A three-dimensional highly doped fluorinated SnO ₂ (FTO) nanoparticulate film serves as conductive core for low-resistance and drift-assisted charge extraction while a thin, low-doped conformal TiO ₂ shell maintains a large resistance to recombination (and therefore long charge lifetime). EIS reveals that the electron transit time is reduced by orders of magnitude, whereas the recombination resistance remains in the range of traditional nanoparticle TiO ₂ photoelectrodes. © 2012 American Chemical Society.

Original language	English
Pages (from-to)	4419-4427
Journal	ACS Applied Materials and Interfaces
Volume	4
Issue number	8
DOIs	https://doi.org/10.1021/am301090a
Publication status	Published - 22 Aug 2012
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

3D FTO
3D TCO
conformal
Core-shell
DSSC
nanoparticles

UN SDGs

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

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title = "Enhanced electron extraction from template-free 3D nanoparticulate transparent conducting oxide (TCO) electrodes for dye-sensitized solar cells",

abstract = "The semiconducting metal oxide-based photoanodes in the most efficient dye-sensitized solar cells (DSSCs) desires a low doping level to promote charge separation, which, however, limits the subsequent electron extraction in the slow diffusion regime. These conflicts are mitigated in a new photoanode design that decouples the charge separation and extraction functions. A three-dimensional highly doped fluorinated SnO 2 (FTO) nanoparticulate film serves as conductive core for low-resistance and drift-assisted charge extraction while a thin, low-doped conformal TiO 2 shell maintains a large resistance to recombination (and therefore long charge lifetime). EIS reveals that the electron transit time is reduced by orders of magnitude, whereas the recombination resistance remains in the range of traditional nanoparticle TiO 2 photoelectrodes. {\textcopyright} 2012 American Chemical Society.",

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Enhanced electron extraction from template-free 3D nanoparticulate transparent conducting oxide (TCO) electrodes for dye-sensitized solar cells. / Yang, Zhenzhen; Gao, Shanmin; Li, Tao et al.
In: ACS Applied Materials and Interfaces, Vol. 4, No. 8, 22.08.2012, p. 4419-4427.

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

TY - JOUR

T1 - Enhanced electron extraction from template-free 3D nanoparticulate transparent conducting oxide (TCO) electrodes for dye-sensitized solar cells

AU - Yang, Zhenzhen

AU - Gao, Shanmin

AU - Li, Tao

AU - Liu, Fa-Qian

AU - Ren, Yang

AU - Xu, Tao

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].

PY - 2012/8/22

Y1 - 2012/8/22

N2 - The semiconducting metal oxide-based photoanodes in the most efficient dye-sensitized solar cells (DSSCs) desires a low doping level to promote charge separation, which, however, limits the subsequent electron extraction in the slow diffusion regime. These conflicts are mitigated in a new photoanode design that decouples the charge separation and extraction functions. A three-dimensional highly doped fluorinated SnO 2 (FTO) nanoparticulate film serves as conductive core for low-resistance and drift-assisted charge extraction while a thin, low-doped conformal TiO 2 shell maintains a large resistance to recombination (and therefore long charge lifetime). EIS reveals that the electron transit time is reduced by orders of magnitude, whereas the recombination resistance remains in the range of traditional nanoparticle TiO 2 photoelectrodes. © 2012 American Chemical Society.

AB - The semiconducting metal oxide-based photoanodes in the most efficient dye-sensitized solar cells (DSSCs) desires a low doping level to promote charge separation, which, however, limits the subsequent electron extraction in the slow diffusion regime. These conflicts are mitigated in a new photoanode design that decouples the charge separation and extraction functions. A three-dimensional highly doped fluorinated SnO 2 (FTO) nanoparticulate film serves as conductive core for low-resistance and drift-assisted charge extraction while a thin, low-doped conformal TiO 2 shell maintains a large resistance to recombination (and therefore long charge lifetime). EIS reveals that the electron transit time is reduced by orders of magnitude, whereas the recombination resistance remains in the range of traditional nanoparticle TiO 2 photoelectrodes. © 2012 American Chemical Society.

KW - 3D FTO

KW - 3D TCO

KW - conformal

KW - Core-shell

KW - DSSC

KW - nanoparticles

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DO - 10.1021/am301090a

M3 - RGC 21 - Publication in refereed journal

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 8

ER -

Enhanced electron extraction from template-free 3D nanoparticulate transparent conducting oxide (TCO) electrodes for dye-sensitized solar cells

Abstract

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Research Keywords

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