Nanopillar ZnO gas sensor for hydrogen and ethanol

Bie, Li–Jian; Hou, Yudong; Yin, Jun; Duan, Yifan; Yuan, Zhihao

doi:10.1016/j.snb.2007.04.011

Cited by 309 publications

(118 citation statements)

References 14 publications

Supporting

Mentioning

111

Contrasting

Unclassified

Order By: Relevance

“…Yamazoe and Shimanoe have studied the role of shape and size of nanocrystals for the response to oxygen of semiconducting materials [4]. Growth of nanowires, nanorods and nanobelts has demonstrated that the high surface to volume ratio gave these nanostructures enhanced sensor qualities [2,5]. The most common methods to produce sensing layers require thermal treatment of the film, which, unfortunately, causes grain growth and has a detrimental effect on the surface to volume ratio of the sensing layer [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

ZnO nanoparticles or ZnO films: A comparison of the gas sensing capabilities

Eriksson

Khranovskyy

Söderlind

et al. 2009

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

Zinc oxide is an interesting material for bio and chemical sensors. It is a semiconducting metal oxide with potential as an integrated multisensing sensor platform, which simultaneously detects parameters like change in field effect, mass and surface resistivity. In this investigation we have used resistive sensor measurements with respect to oxygen sensitivity in order to characterize sensing layers based on electrochemically produced ZnO nanoparticles and PE-MOCVD grown ZnO films. Proper annealing procedures were developed in order to get stable sensing properties and the oxygen sensitivity towards operation temperature was investigated. The ZnO nanoparticles showed a considerably increased response to oxygen as compared to the films. Preliminary investigations were also performed regarding the response to other gases present in car exhausts or flue gases.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Comparison of the gas sensing properties have been performed for different size and shape of nanstructures, as described earlier in this section [2][3][4][5]. Here we compare the gas sensing behaviour of films and nanoparticles, which we think are of fundamental intereset.…”

Section: Introductionmentioning

confidence: 99%

ZnO nanoparticles or ZnO films: A comparison of the gas sensing capabilities

Eriksson

Khranovskyy

Söderlind

et al. 2009

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

show abstract

“…The gas sensing property of obtained nonowires (shown in Figure 6) was tested using formaldehyde gas as working gas in a home-made instrument as we reported earlier (Han et al, 2009), which demonstrates the high gas sensing property of plasma synthesized ZnO nanowires comparing to the literature (Bie et al, 2007;Patil et al, 2007). From the patterns (Han et al, 2010) www.intechopen.com we can see that ZnO with length about 500 nm performed the highest gas response at both 300 o C and 400 o C, followed by ZnO nanowires with length about 200 nm and 2 μm, respectively.…”

Section: Nanowire Based Gas Sensormentioning

confidence: 56%

Large-Scale Synthesis of Semiconductor Nanowires by Thermal Plasma

Tian¹,

Hu²,

Yuan³

2011

Nanowires - Implementations and Applications

View full text Add to dashboard Cite

“…This might be attributed to the competing desorption of the chemisorbed oxygen [38]. When the working temperature is higher than 235…”

Section: Resultsmentioning

confidence: 99%

Peculiarities of Deposition Times on Gas Sensing Behaviour of Vanadium Oxide Thin Films

2016

View full text Add to dashboard Cite

The importance of vanadium oxide in solid state science as a semiconductor encouraged us to prepare and investigate its microstructure and surface properties related to gas sensing characteristics. Hence, vanadium oxide thin films were deposited by spray pyrolysis method. The prepared films were placed in an electric circuit and the sensing characteristics of these films to ethanol vapors were studied. It was possible to find correlations between nanostructure and electrical properties of the obtained thin films and to optimize conditions of its synthesis. By X-ray diffraction, field emission scanning electron microscopy, and atomic force microscopy, the structure of the deposited films was determined. Based on atomic force microscopy results, the fractal analysis showed a decreasing trend of the fractal dimension (the slope of the log (perimeter) vs. log (area)) versus the deposition time. It was found that the film growth and gas response were affected by the deposition time. The operating temperature of the sensor was optimized for the best gas response. In accordance with our findings, the film deposited at the lowest deposition time (20 min) had the highest sensing response to ethanol.

show abstract

Nanopillar ZnO gas sensor for hydrogen and ethanol

Cited by 309 publications

References 14 publications

ZnO nanoparticles or ZnO films: A comparison of the gas sensing capabilities

ZnO nanoparticles or ZnO films: A comparison of the gas sensing capabilities

Large-Scale Synthesis of Semiconductor Nanowires by Thermal Plasma

Peculiarities of Deposition Times on Gas Sensing Behaviour of Vanadium Oxide Thin Films

Contact Info

Product

Resources

About