Journal ArticleDOI
Conduction Model of Metal Oxide Gas Sensors
Nicolae Barsan,Udo Weimar +1 more
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TLDR
In this article, the authors provide a frame model that deals with all contributions involved in conduction within a real world sensor, and then summarize the contributions together with their interactions in a general applicable model for real world gas sensors.Abstract:
Tin dioxide is a widely used sensitive material for gas sensors. Many research and development groups in academia and industry are contributing to the increase of (basic) knowledge/(applied) know-how. However, from a systematic point of view the knowledge gaining process seems not to be coherent. One reason is the lack of a general applicable model which combines the basic principles with measurable sensor parameters. The approach in the presented work is to provide a frame model that deals with all contributions involved in conduction within a real world sensor. For doing so, one starts with identifying the different building blocks of a sensor. Afterwards their main inputs are analyzed in combination with the gas reaction involved in sensing. At the end, the contributions are summarized together with their interactions. The work presented here is one step towards a general applicable model for real world gas sensors.read more
Citations
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Effect of PEG-400 on the morphology and electrical properties of ZnO nanoparticles application for gas sensor
TL;DR: In this paper, a thermal decomposition of zinc hydroxide and PEG-400 formed after precipitation of zinc acetate from aqueous solution was performed with the aim of optimizing the experimental conditions which allow us to obtain ZnO nanostructures.
Electrochemical microsensors
TL;DR: A critical review of recent developments in electrochemical microsensors is presented in this article, where the main emphasis is on chemiresistors and potentiometric micro sensors, and it appears that the main future thrust can be expected in development of microfabricated sensing arrays based on these two principles.
Journal ArticleDOI
Preparation and gas-sensing property of ultra-fine NiO/SnO2 nano-particles
TL;DR: In this article, the ultra-fine NiO/SnO2 nano-particles (NPs) were fabricated by creatively using carbon black (CB) as a frame and dispersing agent and applied as gas-sensing materials.
Journal ArticleDOI
Photoinduced Electron Transfer in Dye‐Sensitized SnO2 Nanowire Field‐Effect Transistors
Hsing-Chen Wu,Yuan-Chang Huang,I-Kang Ding,Chun-Cing Chen,Yi-Han Yang,Chia-Chang Tsai,Chii-Dong Chen,Chii-Dong Chen,Yit-Tsong Chen,Yit-Tsong Chen +9 more
TL;DR: In this paper, photoaction and photoluminescence spectra on field-effect transistors consisting of dye-sensitized individual SnO2 nanowires were analyzed by comparing gatevoltage dependences in photoaction spectra.
Journal ArticleDOI
Methanol sensing properties of honeycomb-like SnO2 grown on silicon nanoporous pillar array
TL;DR: In this paper, a honeycomb-like tin oxide (SnO 2 ) film was grown on the silicon nanoporous pillar array (Si-NPA) substrate by a chemical vapor deposition (CVD) method.
References
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Book
The surface science of metal oxides
TL;DR: In this paper, the electronic structure of transition metal-oxide surfaces is described. But the electronic structures of non-transition metaloxide surfaces have not been discussed, and they are not considered in this paper.
Book
The Chemical Physics of Surfaces
S. R. Morrison,Peder J. Estrup +1 more
TL;DR: In this paper, the authors present an approach for the reconstruction of the surface of a solid with respect to the Fermi energy in the band diagram of the solid and its surface.
Journal ArticleDOI
Interactions of tin oxide surface with O2, H2O AND H2
TL;DR: In this paper, the authors investigated the interaction of tin oxide surface with oxygen, water vapor, and hydrogen using temperature-programmed desorption (TPD) chromatograms of oxygen.