Low-temperature templated synthesis of porous TiO2 single-crystals for solar cell applications

Yu, Hua, Wang, Lianzhou and Dargusch, Matthew (2016) Low-temperature templated synthesis of porous TiO2 single-crystals for solar cell applications. Solar Energy, 123 17-22. doi:10.1016/j.solener.2015.10.044

Author Yu, Hua
Wang, Lianzhou
Dargusch, Matthew
Title Low-temperature templated synthesis of porous TiO2 single-crystals for solar cell applications
Journal name Solar Energy   Check publisher's open access policy
ISSN 0038-092X
Publication date 2016-01
Sub-type Article (original research)
DOI 10.1016/j.solener.2015.10.044
Open Access Status Not Open Access
Volume 123
Start page 17
End page 22
Total pages 6
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2017
Language eng
Subject 2105 Renewable Energy, Sustainability and the Environment
2500 Materials Science
Formatted abstract
A facile low-temperature synthetic method of growing semiconductor mesoporous single-crystal of anatase TiO2 directly on FTO substrate was developed. The templated hydrothermal synthesis approach was employed to make mesoporous single-crystal TiO2 that contains pores tens to hundreds of nanometres in size under low temperature, which opens a potential way to produce useful functional thin film photoanodes by one-pot approach for fabricating cheap and highly efficient optoelectronic devices. This method is based on seeded nucleation and growth inside a pre-formed mesoporous silica film template immersed in diluted precursor solution. The electrochemical characterizations showed that the directly grown mesoporous single-crystal thin film on FTO substrate has substantially higher conductivity and electron mobility than conventionally deposited TiO2 thin films by printing techniques. Hence, using the as-synthesized mesoporous single-crystal thin film baking at 150°C as photoanodes, an encouraging 5.83% solar to electricity conversion efficiency was achieved. It is expected that the developed mesoporous single-crystals on FTO substrate may find broader applications in many different technologies. This generic synthetic strategy extends the possibility of mesoporous single-crystal films directly growing to a range of substrates. Moreover, this approach could work at lower temperatures below 150°C, which could considerably minimize the environmental impact and production costs of high performance mesoporous materials.
Keyword Anatase TiO2
Low-temperature hydrothermal
Mesoporous single-crystal
Solar cell
Templated synthesis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
School of Chemical Engineering Publications
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