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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Journal ArticleDOI
Quasi physisorptive two dimensional tungsten oxide nanosheets with extraordinary sensitivity and selectivity to NO2
Hareem Khan,Ali Zavabeti,Yichao Wang,Christopher J. Harrison,Benjamin J. Carey,Mohiuddin,Adam F. Chrimes,Isabela Alves de Castro,Bao Yue Zhang,Ylias M. Sabri,Suresh K. Bhargava,Jian Zhen Ou,Torben Daeneke,Salvy P. Russo,Yongxiang Li,Kourosh Kalantar-zadeh +15 more
TL;DR: The demonstrated 2D tungsten oxide based sensing device holds the greatest promise for producing future commercial low-cost, sensitive and selective NO2 gas sensors.
Journal ArticleDOI
Enhanced H2S gas sensing performance of networked CuO-ZnO composite nanoparticle sensor
TL;DR: In this article, the authors synthesized CuO-ZnO composite nanoparticles via a facile solvothermal route, which showed significantly enhanced H 2 S gas sensing performance compared to the pristine CuO and pristine ZnO nanoparticle sensors.
Journal ArticleDOI
Gas Sensors Based on Semiconducting Nanowire Field-Effect Transistors
TL;DR: In this article, gas sensors based on semiconducting nanowire field- effect transistors (FETs) are comprehensively reviewed and some challenges for the future investigation and application of nanowires field-effect gas sensors are discussed.
Journal ArticleDOI
Microfabricated gas sensor systems with sensitive nanocrystalline metal-oxide films
TL;DR: In this paper, an overview on recent developments in metal-oxide-based gas sensor systems, in particular on nanocrystalline oxide materials deposited on modern, state-of-the-art sensor platforms fabricated in micro technology, is presented.
Journal ArticleDOI
Ultrasensitive and low detection limit of toluene gas sensor based on SnO2-decorated NiO nanostructure
TL;DR: In this article, an ultrasensitive and low detection limit of toluene gas sensor based on SnO 2 -decorated NiO nanostructure synthesized via a simple hydrothermal route was described.
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.