gas sensitive semiconductor

Sensitivity, Selectivity, and Stability of GasSensitive ...

34 Sensitivity, Selectivity, and Stability of GasSensitive MetalOxide Nanostructures 2. METALOXIDE GAS SENSORS Historical Background It has been known for a long time that electrical resistance of a semiconductor is very sensitive to the presence of impurities in its volume or at the surface. In 1953, this effect was demonstrated for Ge ...

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Highly sensitive and selective gas sensors using ptype ...

· Designing highly sensitive ptype oxide semiconductor gas sensors by tuning the concentration of holes has scarcely been reported. Nevertheless, electronically sensitizing ptype oxide semiconductors is an important method of developing practical ptype oxide semiconductor gas sensor applications, especially considering that achieving high gas response in ptype oxide semiconductors …

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How can sensitive and selective semiconductor gas sensors ...

· Conclusions Summarizing and answering the question of the title, one can conclude that sensitive and selective semi conducting gas sensors can be made by fulfilling the following requirements: (a) use of a compound (oxide) semiconductor [10] with a characteristic extent comparable to the Debye length [13] or an elementary semiconductor with a wellordered interface (MOS …

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Semiconductor Gas Sensors Fraunhofer

Semiconductor gas sensors Semiconductor gas sensors (also: metal oxide sensors, MOX) are electrical conductivity sensors. The resistance of its active sensor layer changes upon contact with the gas to be detected. MOX gas sensors react to almost all reducing and oxidizing gases and thus not only enable the detection of trace gases such as car

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Gas Sensitive Semiconductor (GSS) Technology | Aeroqual

Gas Sensitive Semiconductor (GSS) Technology. Most independent experts who have tested our GSS ozone sensor agree the sensor is bestinclass for measuring ozone at low concentrations – particularly in the 1 to 100 ppb range. The sensors are consistently able to perform similarly to an ozone analyzer that costs 10x the price.

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US8513711B2 Gassensitive semiconductor device Google ...

A gassensitive semiconductor device having a semiconductive channel ( 10 ) which is delimited by a first ( 12 ) and a second ( 14 ) channel electrode, and having a gate electrode ( 16 ) which is associated with the channel and which cooperates with the channel in such a way that a change in conductivity of the channel ( 10 ) occurs as a response to an action of a gas.

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Global Gas Sensitive Semiconductors Market Share of Gas ...

· The global Gas Sensitive Semiconductors market is segmented on the basis of type of product, application, and region. The analysts authoring the report provide a meticulous evaluation of all of the segments included in the report. The segments are studied keeping in view their market share, revenue, market growth rate, and other vital factors. The segmentation study equips interested parties ...

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Gassensitive semiconductor device Robert Bosch GmbH

A gassensitive semiconductor device having a semiconductive channel (10) which is delimited by a first (12) and a second (14) channel electrode, and having a gate electrode (16) which is associated with the channel and which cooperates with the channel in such a way that a change in conductivity of the channel (10) occurs as a response to an action of a gas.

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Biosensing Based on Gas Sensitive Semiconductor Devices ...

Biosensing Based on Gas Sensitive Semiconductor Devices. Authors; Authors and affiliations; I. Lundström; F. Winquist; Chapter. 1 Citations; 282 Downloads; Abstract. The combination of catalytic metals and semiconductor devices has led to chemical sensors which appear to have both technical and medical applications. 1–5 More particularly, metal insulator semiconductor structures with the ...

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Environments | Free FullText | Highly Sensitive and ...

Highly Sensitive Semiconductor Gas Sensor Principles. One candidate sensor principle for direct monitoring of even subppb level VOC concentrations are metal oxide semiconductor (MOS) gas sensors [13,14], but gassensitive field effect transistors (GasFETs), , based on silicon carbide (SiCFET), have also proven their suitability for this task . For simplification, we will concentrate on ...

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CN102033095A Gassensitive semiconductor device Google ...

A gassensitive semiconductor device having a semiconductive channel (10) which is delimited by a first (12) and a second (14) channel electrode, and having a gate electrode (16) which is associated with the channel and which cooperates with the channel in such a way that a change in conductivity of the channel (10) occurs as a response to an action of gas.

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Gassensitive semiconductor fieldeffect sensors. Final ...

Modified silicon fieldeffect transistor (FET) and MISdiodes as well as semiconducting metal oxides were examined for their suitability for the detection of CO, CO2, SO2, NO, N2O, and NH3 gases. The channel conductivity of silicon semiconductor structures was field controlled by the effect of gases and vapours on a sensitive layer of organic material, zeolite or palladium.

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Gassensitive semiconductor device Kunz, Denis

A gassensitive semiconductor device having a semiconductive channel (10) which is delimited by a first (12) and a second (14) channel electrode, and having a gate electrode (16) which is associated with the channel and which cooperates with the channel in such a way that a change in conductivity of the channel (10) occurs as a response to an action of a gas.

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US20110121368A1 Gassensitive semiconductor device ...

A gassensitive semiconductor device having a semiconductive channel ( 10 ) which is delimited by a first ( 12 ) and a second ( 14 ) channel electrode, and having a gate electrode ( 16 ) which is associated with the channel and which cooperates with the channel in such a way that a change in conductivity of the channel ( 10 ) occurs as a response to an action of a gas.

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