Nanosized anatase TiO2 single crystals with tunable exposed (001) facets for enhanced energy conversion efficiency of dye-sensitized solar cells

Wu, Xia, Chen, Zhigang, Lu, Gao Qing (Max) and Wang, Lianzhou (2011) Nanosized anatase TiO2 single crystals with tunable exposed (001) facets for enhanced energy conversion efficiency of dye-sensitized solar cells. Advanced Functional Materials, 21 21: 4167-4172. doi:10.1002/adfm.201100828


Author Wu, Xia
Chen, Zhigang
Lu, Gao Qing (Max)
Wang, Lianzhou
Title Nanosized anatase TiO2 single crystals with tunable exposed (001) facets for enhanced energy conversion efficiency of dye-sensitized solar cells
Formatted title
Nanosized anatase TiO2 single crystals with tunable exposed (001) facets for enhanced energy conversion efficiency of dye-sensitized solar cells
Journal name Advanced Functional Materials   Check publisher's open access policy
ISSN 1616-301X
1616-3028
Publication date 2011-11-08
Sub-type Article (original research)
DOI 10.1002/adfm.201100828
Volume 21
Issue 21
Start page 4167
End page 4172
Total pages 6
Place of publication Weinheim, Germany
Publisher Wiley - VCH Verlag
Collection year 2012
Language eng
Formatted abstract
This paper reports the synthesis of nanosized TiO2 single crystals with different percentages of exposed (001) facets in the presence of HF solution. Various characterizations are conducted to understand the correlation between particle morphology, exposed (001) facets and photo-conversion efficiency of the nanosized anatase TiO2 single crystals. An enhancement in dye-sensitized solar cells (DSSCs) overall conversion efficiency is observed for the photoanode consisting of nanosized TiO2 single crystals with higher percentage of exposed (001) facets, increasing from 7.47%, 8.14% to 8.49% for the TiO2 single crystals with ca. 10%, 38%, and 80% percentage of exposed (001) facets. Experimentally confirmed by dark current potential and open-circuit voltage decay scans, such highly exposed (001) facets are not only favorable for more dye adsorption but also effectively retard the charge recombination process in DSSCs.
Keyword Nanosized TiO2 single crystals
(001) facets
Dye-sensitized solar cells
Conversion efficiency
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Fri, 21 Oct 2011, 11:40:05 EST by Xia Wu on behalf of School of Chemical Engineering