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Improvement of light harvesting and device performance of dye-sensitized solar cells using rod-like nanocrystal TiO2 overlay coating on TiO2 nanoparticle working electrode

Liu,X, Fang,J, Gao,M, Wang,H, Yang,W and Lin,T 2015, Improvement of light harvesting and device performance of dye-sensitized solar cells using rod-like nanocrystal TiO2 overlay coating on TiO2 nanoparticle working electrode, Materials Chemistry and Physics, vol. 151, pp. 330-336, doi: 10.1016/j.matchemphys.2014.11.076.

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Title Improvement of light harvesting and device performance of dye-sensitized solar cells using rod-like nanocrystal TiO2 overlay coating on TiO2 nanoparticle working electrode
Author(s) Liu,X
Fang,J
Gao,M
Wang,H
Yang,W
Lin,TORCID iD for Lin,T orcid.org/0000-0002-1003-0671
Journal name Materials Chemistry and Physics
Volume number 151
Start page 330
End page 336
Publisher Elsevier Ltd
Publication date 2015-02
ISSN 0254-0584
Keyword(s) Crystal growth
Electron microscopy
Optical properties
Semiconductors
Science & Technology
Technology
Materials Science, Multidisciplinary
Materials Science
ENERGY-CONVERSION EFFICIENCY
PHOTOVOLTAIC APPLICATIONS
ELECTRICAL-IMPEDANCE
SCATTERING LAYER
FILM
OXIDES
Summary Novel TiO2 single crystalline nanorods were synthesized by electrospinning and hydrothermal treatment. The role of the TiO2 nanorods on TiO2 nanoparticle electrode in improvement of light harvesting and photovoltaic properties of dye-sensitized solar cells (DSSCs) was examined. Although the TiO2 nanorods had lower dye loading than TiO2 nanoparticle, they showed higher light utilization behaviour. Electron transfer in TiO2 nanorods received less resistance than that in TiO2 nanoparticle aggregation. By just applying a thin layer of TiO2 nanorods on TiO2 nanoparticle working electrode, the DSSC device light harvesting ability and energy conversion efficiency were improved significantly. The thickness of the nanorod layer in the working electrode played an important role in determining the photovoltaic property of DSSCs. An energy conversion efficiency as high as 6.6% was found on a DSSC device with the working electrode consisting of a 12 μm think TiO2 nanoparticle layer covered with 3 μm thick TiO2 nanorods. The results obtained from this study may benefit further design of highly efficient DSSCs.
Language eng
DOI 10.1016/j.matchemphys.2014.11.076
Field of Research 091205 Functional Materials
Socio Economic Objective 850504 Solar-Photovoltaic Energy
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30072204

Document type: Journal Article
Collection: Institute for Frontier Materials
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