Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells

Elena Galoppini; Jonathan Rochford; Hanhong Chen; Gaurav Saraf; Yicheng Lu; Anders Hagfeldt; Gerrit Boschloo

doi:10.1021/jp062865q

Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells

Elena Galoppini, Jonathan Rochford, Hanhong Chen, Gaurav Saraf, Yicheng Lu, Anders Hagfeldt, Gerrit Boschloo

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

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Abstract

The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grown ZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode was compared. The electrodes were of similar thickness (2 μm) and sensitized with zinc(II) mesotetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I ^-/I₃^- in 3-methoxypropionitrile. Electron transport in the ZnO-C cells was comparable with that found for colloidal TiO₂ films (transport time ∼ 10 ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2 orders of magnitude faster (∼30 μs). Thus, the morphology of the working ZnO electrode plays a key role for the electron transport properties.

Original language	English (US)
Pages (from-to)	16139-16161
Number of pages	23
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	33
DOIs	https://doi.org/10.1021/jp062865q
State	Published - Aug 24 2006

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells",

abstract = "The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grown ZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode was compared. The electrodes were of similar thickness (2 μm) and sensitized with zinc(II) mesotetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I -/I3- in 3-methoxypropionitrile. Electron transport in the ZnO-C cells was comparable with that found for colloidal TiO2 films (transport time ∼ 10 ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2 orders of magnitude faster (∼30 μs). Thus, the morphology of the working ZnO electrode plays a key role for the electron transport properties.",

author = "Elena Galoppini and Jonathan Rochford and Hanhong Chen and Gaurav Saraf and Yicheng Lu and Anders Hagfeldt and Gerrit Boschloo",

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AU - Galoppini, Elena

AU - Rochford, Jonathan

AU - Chen, Hanhong

AU - Saraf, Gaurav

AU - Lu, Yicheng

AU - Hagfeldt, Anders

AU - Boschloo, Gerrit

PY - 2006/8/24

Y1 - 2006/8/24

N2 - The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grown ZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode was compared. The electrodes were of similar thickness (2 μm) and sensitized with zinc(II) mesotetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I -/I3- in 3-methoxypropionitrile. Electron transport in the ZnO-C cells was comparable with that found for colloidal TiO2 films (transport time ∼ 10 ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2 orders of magnitude faster (∼30 μs). Thus, the morphology of the working ZnO electrode plays a key role for the electron transport properties.

AB - The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grown ZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode was compared. The electrodes were of similar thickness (2 μm) and sensitized with zinc(II) mesotetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I -/I3- in 3-methoxypropionitrile. Electron transport in the ZnO-C cells was comparable with that found for colloidal TiO2 films (transport time ∼ 10 ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2 orders of magnitude faster (∼30 μs). Thus, the morphology of the working ZnO electrode plays a key role for the electron transport properties.

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Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells

Abstract

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