Improved efficiency of dye-sensitized solar cells through fluorine-doped TiO2 blocking layer

Suk In Noh; Kokn Nara Bae; Hyo Jin Ahn; Tae Yeon Seong

doi:10.1016/j.ceramint.2013.03.082

Improved efficiency of dye-sensitized solar cells through fluorine-doped TiO₂ blocking layer

Suk In Noh, Kokn Nara Bae, Hyo Jin Ahn, Tae Yeon Seong

Department of Materials Science and Engineering

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

36 Citations (Scopus)

Abstract

We report on improvement in the performance of dye-sensitized solar cells (DSSCs) through a fluorine (F)-doped TiO₂ dense layer for use as a blocking layer. The F-doped TiO₂ layer was deposited on commercial F-doped SnO₂ (FTO) substrate by the hydrolysis of a TiCl₄ aqueous solution with NH₄F. Their structural, morphological, and optical properties were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-vis spectroscopy examinations. The photocurrent density-voltage characteristics show that DSSCs fabricated with the F-doped TiO₂ layer exhibits higher conversion efficiency (∼5.24%) than ones with the undoped TiO₂ layer (∼4.76%), and the bare FTO substrate (∼3.88%). This improvement is attributed to the combined effects of reduced interfacial resistance and effective blocking behavior by the F-doped TiO₂ dense layer.

Original language	English
Pages (from-to)	8097-8101
Number of pages	5
Journal	Ceramics International
Volume	39
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2013.03.082
Publication status	Published - 2013 Sept

Bibliographical note

Funding Information:
This work was supported by the World Class University Program through the National Research Foundation of Korea funded by MEST ( R33-2008-000–10025-0 ).

Keywords

Blocking layer
Dye-sensitized solar cell
F-doped TiO
Interfacial resistance

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2013.03.082

Cite this

@article{015b26d7018f49e4930260a185de568a,

title = "Improved efficiency of dye-sensitized solar cells through fluorine-doped TiO2 blocking layer",

abstract = "We report on improvement in the performance of dye-sensitized solar cells (DSSCs) through a fluorine (F)-doped TiO2 dense layer for use as a blocking layer. The F-doped TiO2 layer was deposited on commercial F-doped SnO2 (FTO) substrate by the hydrolysis of a TiCl4 aqueous solution with NH4F. Their structural, morphological, and optical properties were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-vis spectroscopy examinations. The photocurrent density-voltage characteristics show that DSSCs fabricated with the F-doped TiO2 layer exhibits higher conversion efficiency (∼5.24%) than ones with the undoped TiO2 layer (∼4.76%), and the bare FTO substrate (∼3.88%). This improvement is attributed to the combined effects of reduced interfacial resistance and effective blocking behavior by the F-doped TiO2 dense layer.",

keywords = "Blocking layer, Dye-sensitized solar cell, F-doped TiO, Interfacial resistance",

author = "Noh, {Suk In} and Bae, {Kokn Nara} and Ahn, {Hyo Jin} and Seong, {Tae Yeon}",

note = "Funding Information: This work was supported by the World Class University Program through the National Research Foundation of Korea funded by MEST ( R33-2008-000–10025-0 ).",

year = "2013",

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doi = "10.1016/j.ceramint.2013.03.082",

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AU - Noh, Suk In

AU - Bae, Kokn Nara

AU - Ahn, Hyo Jin

AU - Seong, Tae Yeon

N1 - Funding Information: This work was supported by the World Class University Program through the National Research Foundation of Korea funded by MEST ( R33-2008-000–10025-0 ).

PY - 2013/9

Y1 - 2013/9

N2 - We report on improvement in the performance of dye-sensitized solar cells (DSSCs) through a fluorine (F)-doped TiO2 dense layer for use as a blocking layer. The F-doped TiO2 layer was deposited on commercial F-doped SnO2 (FTO) substrate by the hydrolysis of a TiCl4 aqueous solution with NH4F. Their structural, morphological, and optical properties were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-vis spectroscopy examinations. The photocurrent density-voltage characteristics show that DSSCs fabricated with the F-doped TiO2 layer exhibits higher conversion efficiency (∼5.24%) than ones with the undoped TiO2 layer (∼4.76%), and the bare FTO substrate (∼3.88%). This improvement is attributed to the combined effects of reduced interfacial resistance and effective blocking behavior by the F-doped TiO2 dense layer.

AB - We report on improvement in the performance of dye-sensitized solar cells (DSSCs) through a fluorine (F)-doped TiO2 dense layer for use as a blocking layer. The F-doped TiO2 layer was deposited on commercial F-doped SnO2 (FTO) substrate by the hydrolysis of a TiCl4 aqueous solution with NH4F. Their structural, morphological, and optical properties were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-vis spectroscopy examinations. The photocurrent density-voltage characteristics show that DSSCs fabricated with the F-doped TiO2 layer exhibits higher conversion efficiency (∼5.24%) than ones with the undoped TiO2 layer (∼4.76%), and the bare FTO substrate (∼3.88%). This improvement is attributed to the combined effects of reduced interfacial resistance and effective blocking behavior by the F-doped TiO2 dense layer.

KW - Blocking layer

KW - Dye-sensitized solar cell

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KW - Interfacial resistance

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