Engineering approaches for the improvement of conductometric gas sensor parameters

Korotcenkov, Ghenadii; Cho, B.K.

doi:10.1016/j.snb.2013.07.101

Cited by 210 publications

(82 citation statements)

References 182 publications

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“…Hence the sensors were exposed to analytes with varying concentration in the range 1 ppm to 100 ppm. The change in sensitivity of different analytes as a function of concentration was studied [9][10]. Selectivity -The selectivity of a sensor was measured by exposing the sensor under different analytes and recording the sensor's response (change in resistance) more effectively towards a certain analytes as compare to others [11][12][13].…”

Section: Resultsmentioning

confidence: 99%

A Study & Real Time Monitoring of Metal Oxide Semiconductor (MOS) Gas Sensor

Beniwal¹

2016

IOSR

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Section: Resultsmentioning

confidence: 99%

A Study & Real Time Monitoring of Metal Oxide Semiconductor (MOS) Gas Sensor

Beniwal¹

2016

IOSR

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“…In the following, we report on experiments that had been carried out with the aim of assessing the feasibility of small and inexpensive MOX gas sensors to serve as backend vapor detectors [38,39,40,41,42]. As a first result, we show that combinations of thermal solid-vapor converters with MOX gas sensors are able to detect explosives particle residue (Section 4.1) and illicit drugs (Section 4.2) with sufficient sensitivity to live up to the demands of security threat detection.…”

Section: Metal-oxide-based Security Sensor Systemsmentioning

confidence: 99%

Solid-State Gas Sensors: Sensor System Challenges in the Civil Security Domain

et al. 2016

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The detection of military high explosives and illicit drugs presents problems of paramount importance in the fields of counter terrorism and criminal investigation. Effectively dealing with such threats requires hand-portable, mobile and affordable instruments. The paper shows that solid-state gas sensors can contribute to the development of such instruments provided the sensors are incorporated into integrated sensor systems, which acquire the target substances in the form of particle residue from suspect objects and which process the collected residue through a sequence of particle sampling, solid-vapor conversion, vapor detection and signal treatment steps. Considering sensor systems with metal oxide gas sensors at the backend, it is demonstrated that significant gains in sensitivity, selectivity and speed of response can be attained when the threat substances are sampled in particle as opposed to vapor form.

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“…temperature scanning), this temperature variation can be used to gather additional information on the gas composition and to find ways of improving sensitivity and selectivity of the measurement [42].…”

Section: Temperature Scanningmentioning

confidence: 99%