Nano-Porous TiO2 Layer Using Ultrafine Nano-Particles for the Blocking Layer in Dye-Sensitized Solar Cells

Yao, Hai-Long, Ma, Jun-Hua, Yang, Guan-Jun, He, Xue-Long, Fan, Sheng-Qiang, Li, Cheng-Xin and Li, Chang-Jiu (2014) Nano-Porous TiO2 Layer Using Ultrafine Nano-Particles for the Blocking Layer in Dye-Sensitized Solar Cells. Journal of Nanoscience and Nanotechnology, 14 4: 2829-2835. doi:10.1166/jnn.2014.8602

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Author Yao, Hai-Long
Ma, Jun-Hua
Yang, Guan-Jun
He, Xue-Long
Fan, Sheng-Qiang
Li, Cheng-Xin
Li, Chang-Jiu
Title Nano-Porous TiO2 Layer Using Ultrafine Nano-Particles for the Blocking Layer in Dye-Sensitized Solar Cells
Journal name Journal of Nanoscience and Nanotechnology   Check publisher's open access policy
ISSN 1533-4880
1533-4899
Publication date 2014-04-01
Sub-type Article (original research)
DOI 10.1166/jnn.2014.8602
Volume 14
Issue 4
Start page 2829
End page 2835
Total pages 7
Place of publication Valencia, CA, United States
Publisher American Scientific Publishers
Collection year 2015
Language eng
Formatted abstract
A nano-porous TiO2 layer was produced by spray-deposition using ultrafine anatase nano-particles for the blocking layer for the dye-sensitized solar cells (DSCs). The microstructure and the electrochemical properties of the spray-deposited TiO2 layer were examined. The results of electrochemical properties showed that the spray-deposited TiO2 layer was capable to suppress the I 3 − ions diffusion to FTO substrate, reducing the electron recombination between the electrons on FTO substrate and I 3 − ions in electrolyte. In addition, the connection between TiO2 film and FTO substrate was improved by the TiO2 layer. Therefore, the short circuit current density and thereby the phototo- electric energy conversion efficiency were improved by this blocking layer. The blocking effect of the porous layer was attributed to both the complicated pore structure of the spray-deposited layer and the enhanced connections between TiO2 film and FTO substrate. The low temperature characteristic of spray deposition approach indicates that it is suitable to the flexible-based DSCs.
Keyword Nano Porous Layer
Blocking Layer
Spray Deposition
Low Temperature
Dye sensitized solar cells
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Chemistry and Molecular Biosciences
 
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