17documents trouvés
Increasing the sensitivity and selectivity of metal oxide gas sensors by controlling the sensitive layer polarization
N.DUFOUR, Y.VEYRAC, P.MENINI, F.BLANC, C.TALHI, B.FRANC, C.GANIBAL, C.WARTELLE, K.AGUIR
MICA, I2C, IDEA, Technocentre Renault, IM2NP
Manifestation avec acte : IEEE SENSORS 2012 du 28 octobre au 31 octobre 2012, Taipei (Taiwan), Octobre 2012, 4p. , N° 12491
Lien : http://hal.archives-ouvertes.fr/hal-00732255
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Abstract
The effects of bias current on sensitivity and selectivity of resistive Metal-Oxide (MOX) sensors toward gases have been investigated. While the working temperature is kept constant, it has been found that tuning the polarization of the MOX thin film induces changes on its sensitivity toward gases. Besides, the behavior of sensitivity versus bias current depends on the nature of the gas and of the thin sensing film, meaning it is possible to enhance the selectivity by adjusting the polarization of different sensitive layers. This underutilized parameter provides a new way of improving easily gas sensors sensitivity and above all selectivity. It would then be interesting to polarize individually each sensor of a multi-sensor device in order to optimize the whole system performances, which may represent a breakthrough in the development of smart E-Nose.
La harpe laser à climats musicaux: un projet pluridisciplinaire de médiation scientifique par l'art
P.ARGUEL, A.BOUCHIER, L.COUTO-ROSADO, X.DOLLAT, J.FANCHON, B.FRANC, C.GANIBAL, F.LOZES-DUPUY, P.MARCOUL, A.MAUFFRET
PH, 2I, Ecole des Beaux Arts, COMMUNICATION
Manifestation avec acte : Colloque sur l'Enseignement des Technologies et des Sciences de l'Information et des Systèmes (CETSIS 2011), Trois Rivières (Canada), 23-26 Octobre 2011, 6p. , N° 11421
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126317Harpe lumineuse: notice technique. Contribution au 50ème anniversaire de la découverte du laser
P.ARGUEL, A.BOUCHIER, L.COUTO-ROSADO, X.DOLLAT, J.FANCHON, B.FRANC, C.GANIBAL, F.LOZES-DUPUY, P.MARCOUL, A.MAUFFRET
PH, Ecole des Beaux Arts, 2I, COMMUNICATION
Rapport LAAS N°11447, Juillet 2011, 32p.
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125167Projet MicRhéo. Système électronique de détection et de commande
F.MATHIEU, B.FRANC, X.DOLLAT
2I
Rapport LAAS N°10351, Juin 2010, 14p.
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121719Système de détection et de suivi pour micro-membranes résonantes
F.MATHIEU, X.DOLLAT, M.SANCHEZ, B.FRANC
2I
Rapport LAAS N°09717, Décembre 2009, 29p.
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119754Characterization of dynamic measurement with nanoparticular SnO2 gas sensors
C.TROPIS, P.MENINI, A.MARTINEZ, N.YOBOUE, B.FRANC, F.BLANC, P.FADEL, D.LAGRANGE, P.FAU, A.MAISONNAT
M2D, 2I, TEAM, LCC
Manifestation avec acte : 20th MicroMechanics europe Workshop (MME 2009), Toulouse (France), 20-22 Septembre 2009, 4p. , N° 09393
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Mots-Clés / Keywords
SnO2 gas sensor; Temperature step dynamic mode; Stability; Reproducibility; CO sensitivity;
Banc de caractérisation pour capteurs de gaz
D.LAGRANGE, P.FADEL, B.FRANC, C.TROPIS
TEAM, M2D, 2I
Rapport LAAS N°09097, Mars 2009, 40p.
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116808Effect of annealing conditions on photoluminescence properties of low-pressure chemical vapour deposition-grown silicon nanocrystals
K.KOUKOS, E.BEDEL-PEREIRA, O.GAUTHIER-LAFAYE, E.SCHEID, L.BOUSCAYROL, B.FRANC, P.ARGUEL, S.BONNEFONT, F.LOZES-DUPUY, G.SARRABAYROUSE
M2D, PH, TEAM, 2I
Revue Scientifique : Japanese Journal of Applied Physics, Vol.47, N°1, pp.130-132, Janvier 2008 , N° 07654
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Abstract
The photoluminescence properties of silicon nanocrystals in SiO2, prepared by low-pressure chemical vapour deposition and subsequent annealing have been studied. A comprehensive range of combinations of film compositions and annealing conditions were tested. The use of two-step annealing (a rapid annealing, followed by a conventional one) used instead of the common one-step conventional annealing, enhances emission. Annealing conditions are key to the photoluminescence and structural properties of the obtained film and have been investigated in detail. Film composition is also an important parameter, which allows tuning of the emission in a wide spectral range in the near infrared.
Mots-Clés / Keywords
LPCVD; Silicon nanocrystals; Photoluminescence; SiOx; Rapid Thermal Annealing (RTA);
Study on pH-ISFET temperature effect using implemented MOS transistor
I.HUMENYUK, SPALOMAR, D.LAGRANGE, S.ASSIE-SOULEILLE, B.FRANC, P.MARCOUL, D.MEDALE, A.MARTINEZ, P.TEMPLE BOYER
2I, M2D
Manifestation avec acte : International Conference on Mixed Design of Integrated Circuits and Systems (MIXDES'2006), Gdynia (Pologne), 22-24 Juin 2006, pp.528-532 , N° 06212
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107308Development of pNH4-ISFETs microsensors for water analysis
I.HUMENYUK, B.TORBIERO, S.ASSIE-SOULEILLE, D.COLIN, X.DOLLAT, B.FRANC, A.MARTINEZ, P.TEMPLE BOYER
TMN, 2I, TEAM, M2D
Revue Scientifique : Microelectronics Journal, Vol.37, N°6, pp.475-479, Juin 2006 , N° 04185
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