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Synergic effect within n-type inorganic–p-type organic nano-hybrids in gas sensors

Jiang, Tingting, Wang, Zhaojie, Li, Zhenyu, Wang, Wei, Xu, Xiuru, Liu, Xincai, Wang, Jinfeng and Wang, Ce 2013, Synergic effect within n-type inorganic–p-type organic nano-hybrids in gas sensors, Journal of materials chemistry, no. 17, pp. 3017-3025.

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Title Synergic effect within n-type inorganic–p-type organic nano-hybrids in gas sensors
Author(s) Jiang, Tingting
Wang, Zhaojie
Li, Zhenyu
Wang, Wei
Xu, Xiuru
Liu, Xincai
Wang, Jinfeng
Wang, Ce
Journal name Journal of materials chemistry
Issue number 17
Start page 3017
End page 3025
Total pages 9
Publisher Royal Society of Chemistry
Place of publication Cambridge, England
Publication date 2013-05-07
ISSN 0959-9428
1364-5501
Summary This paper describes the exploration of a synergic effect within n-type inorganic–p-type organic nanohybrids in gas sensors. One-dimensional (1D) n-type SnO2–p-type PPy composite nanofibers were prepared by combining the electrospinning and polymerization techniques, and taken as models to explore the synergic effect during the sensing measurement. Outstanding sensing performances, such as large responses and low detection limits (20 ppb for ammonia) were obtained. A plausible mechanism for the synergic effect was established by introducing p–n junction theory to the systems. Moreover, interfacial metal (Ag) nanoparticles were introduced into the n-type SnO2–p-type PPy nano-hybrids to further supplement and verify our theory. The generality of this mechanism was further verified using TiO2–PPy and TiO2–Au–PPy nano-hybrids. We believe that our results can construct a powerful platform to better understand the relationship between the microstructures and their gas sensing performances.
Language eng
Field of Research 050206 Environmental Monitoring
Socio Economic Objective 849801 Management of Gaseous Waste from Mineral Resource Activities (excl. Greenhouse Gases)
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30057607

Document type: Journal Article
Collections: Institute for Frontier Materials
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