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

Research output: Contribution to journalArticle

23 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 languageEnglish
Pages (from-to)8097-8101
Number of pages5
JournalCeramics International
Volume39
Issue number7
DOIs
Publication statusPublished - 2013 Sep 1

Fingerprint

Fluorine
Substrates
Ultraviolet spectroscopy
Photocurrents
Conversion efficiency
Structural properties
Hydrolysis
X ray photoelectron spectroscopy
Optical properties
X ray diffraction
Scanning electron microscopy
Electric potential
Dye-sensitized solar cells
titanium tetrachloride

Keywords

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

ASJC Scopus subject areas

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

Cite this

Improved efficiency of dye-sensitized solar cells through fluorine-doped TiO2 blocking layer. / Noh, Suk In; Bae, Kokn Nara; Ahn, Hyo Jin; Seong, Tae Yeon.

In: Ceramics International, Vol. 39, No. 7, 01.09.2013, p. 8097-8101.

Research output: Contribution to journalArticle

Noh, Suk In ; Bae, Kokn Nara ; Ahn, Hyo Jin ; Seong, Tae Yeon. / Improved efficiency of dye-sensitized solar cells through fluorine-doped TiO2 blocking layer. In: Ceramics International. 2013 ; Vol. 39, No. 7. pp. 8097-8101.
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