A contribution on some basic definitions of sensors properties

D’Amico, A.; Natale, Corrado Di

doi:10.1109/jsen.2001.954831

Cited by 234 publications

(107 citation statements)

References 7 publications

Supporting

Mentioning

106

Contrasting

Order By: Relevance

“…For comparing the sensor characteristics of the sensor films, the resulting resistance change response R/R 0 (as defined in ref. [18]) are plotted. Both sensors show a fast, reversible and reproducible response towards propane and propene, and each has a very stable baseline.…”

Section: Resultsmentioning

confidence: 99%

Selectivity enhancement of p-type semiconducting hydrocarbon sensors—The use of sol-precipitated nano-powders

Sahner

Schönauer

Matam

et al. 2008

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

A method for preparing sol-precipitated Sr(Ti 0.8 Fe 0.2 )O 3−δ powders yielding particle sizes of about 70 nm is presented. Screen-printed films based on such nano-scaled powders are compared and contrasted to conventional micro-scaled thick films.By employing sol-precipitated powders, the hydrocarbon sensitivity of the sensor devices is improved. For unsaturated hydrocarbons, resistance changes similar to those of thin films prepared by pulsed laser deposition are observed, thus combining the fast sensor response of Sr(Ti 0.8 Fe 0.2 )O 3−δ thick films with the high response (R/R 0 ) values observed for thin films. The pronounced cross-interference of NO and CO can be eliminated by means of an additional zeolite layer deposited on top of the nano-scaled sensor film.

show abstract

Section: Resultsmentioning

confidence: 99%

Selectivity enhancement of p-type semiconducting hydrocarbon sensors—The use of sol-precipitated nano-powders

Sahner

Schönauer

Matam

et al. 2008

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

show abstract

“…11 (a) and (b) is a comparison of the O 2 response, R g / R N2 , versus oxygen partial pressure in oxygen / nitrogen gas mixtures (total pressure  1 atm) of films versus particles at 450 and 500°C, for the samples that gave the highest response in their respective category. Both the response and the sensitivity, of which the latter is the slope of the response versus oxygen concentration curve [21] was significantly higher for the nanoparticles as compared to the devices based on ZnO films. The marked data points in Fig.…”

Section: Oxygen Sensitivitymentioning

confidence: 95%

“…Sensing characteristics in terms of sensor signal, response and sensitivity [21] were studied through the detection of oxygen concentrations ranging from 1 to 100% oxygen in a background of nitrogen, maintaining close to atmospheric pressure and a constant total flow of 100 ml / min. The temperature of the films was varied from 150 to 550°C.…”

Section: Gas Sensitivity Measurementsmentioning

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

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

“…Due to the high magnetic moment, it offers the possibility of having the strong magnetic modulation of permittivity at room temperature when excited by an optical radiation near infra-red. By combining plasmonic Au and ferromagnetic Co into Ti buffer and a protective layer, P c and by optimizing the multilayer configuration, the influence of surface plasmons and magnetism on sensitivity and device performance can be exploited [9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Magneto-Optic Surface Plasmon Resonance Ti/Au/Co/Au/Pc Configuration and Sensitivity

Rizal

2018

Magnetochemistry

View full text Add to dashboard Cite

Magneto-optic surface plasmon resonance (MOSPR)-based sensors are highly attractive as next-generation biosensors. However, these sensors suffer from oxidation leading to degradation of performance, reproducibility of the sensor surface, because of the difficulty of removing adsorbed materials, and degradation of the sensor surface during surface cleaning and these limit their applications. In this paper, I propose MOSPR-based biosensors with 0 to 15 nm thick inert polycarbonate laminate plastic as a protective layer and theoretically demonstrate the practicability of my approach in water-medium for three different probing samples: ethanol, propanol, and pentanol. I also investigate microstructure and magnetic properties. The chemical composition and layered information of the sensor are investigated using X-ray reflectivity and X-ray diffraction analyses and these show distinct face-centered-cubic (fcc)-Au (111) phases, as dominated by the higher density of conduction electrons in Au as compared to Co. The magnetic characterization measured with the in-plane magnetic field to the sensor surface for both the as-deposited and annealed multilayers showed isotropic easy axis magnetization parallel to the multilayer interface at a saturating magnetic field of <100 Oersted (Oe). The sensor showed a maximum sensitivity of 5.5 × 10 4 %/RIU (refractive index unit) for water-ethanol media and the highest detection level of 2.5 × 10 −6 for water-pentanol media as the protective layer is increased from 0 to 15 nm.

show abstract

A contribution on some basic definitions of sensors properties

Cited by 234 publications

References 7 publications

Selectivity enhancement of p-type semiconducting hydrocarbon sensors—The use of sol-precipitated nano-powders

Selectivity enhancement of p-type semiconducting hydrocarbon sensors—The use of sol-precipitated nano-powders

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

Magneto-Optic Surface Plasmon Resonance Ti/Au/Co/Au/Pc Configuration and Sensitivity

Contact Info

Product

Resources

About