CH4 thick-film gas sensors: Characterization method and theoretical explanation

Carotta, M.C.; Dallara, C.; Martinelli, G.; Passari, L.; Camanzi, A.

doi:10.1016/0925-4005(91)80005-5

Cited by 44 publications

(13 citation statements)

References 9 publications

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“…Surface energy barrier were carried out through temperaturestimulated conductance measurements [20,21]. Finally, dynamic responses of the sensors were recorded vs. carbon monoxide in dry air with the operating temperature ranging from 450 to 650 • C. [18] and are in agreement with earlier literature [9,11].…”

Section: Methodsmentioning

confidence: 98%

(Ti, Sn)O2 solid solutions for gas sensing: A systematic approach by different techniques for different calcination temperature and molar composition

Carotta

Cervi

Gherardi

et al. 2009

Sensors and Actuators B: Chemical

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Section: Methodsmentioning

confidence: 98%

(Ti, Sn)O2 solid solutions for gas sensing: A systematic approach by different techniques for different calcination temperature and molar composition

Carotta

Cervi

Gherardi

et al. 2009

Sensors and Actuators B: Chemical

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“…According to the literature [17], the difference between the energy at the surface of a grain and the level in the deep bulk of a grain is referred as energy barrier, eV s . A method to measure eV s has been developed by Carotta et al in [18]. It consists in measuring the conductance as a response to a fast temperature variation.…”

Section: Layers Deposition Electrical Characterisation and Gas Responsementioning

confidence: 99%

Aqueous and alcoholic syntheses of tungsten trioxide powders for NO2 detection

Guidi

Blo

Butturi

et al. 2004

Sensors and Actuators B: Chemical

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“…4 is reported in Ref. 10. At low temperatures, pure and Ta-added samples display a strong linear increase of the energy barrier which stabilises the conductance from 100 up to above 200 C (see Fig.…”

Section: Resultsmentioning

confidence: 89%

Thick-film gas sensors based on vanadium–titanium oxide powders prepared by sol-gel synthesis

Carotta

Ferroni

Gherardi

et al. 2004

Journal of the European Ceramic Society

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Two titania powders modified by 10 at.% of vanadium were prepared by two different sol-gel routes. The powders fired at 650 C had the rutile structure. These powders were used to produce prototype thick-film sensors. Four series of thick-film samples were fabricated by screen-printing, fired for 1 h at 650 and 850 C. The morphology and gas-sensing properties were examined and compared with those of pure and Ta-added titania films, previously studied by the authors. Ta addition inhibited the anatase-torutile phase transformation during heating and was also effective in keeping the TiO 2 grain size in the nanometre range. On the contrary, V addition facilitated the anatase-to-rutile phase transformation. Thick films obtained from the two powders had similar conductance behaviour vs. temperature. The gas response of the films was affected by both the grain size and firing temperature. #

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CH4 thick-film gas sensors: Characterization method and theoretical explanation

Cited by 44 publications

References 9 publications

(Ti, Sn)O2 solid solutions for gas sensing: A systematic approach by different techniques for different calcination temperature and molar composition

(Ti, Sn)O2 solid solutions for gas sensing: A systematic approach by different techniques for different calcination temperature and molar composition

Aqueous and alcoholic syntheses of tungsten trioxide powders for NO2 detection

Thick-film gas sensors based on vanadium–titanium oxide powders prepared by sol-gel synthesis

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