Detection and titration of ozone using metallophthalocyanine based field effect transistors

Bouvet, Marcel; Leroy, Arnaud; Simon, Jacques; Tournilhac, François; Guillaud, G.; Lessnick, P; Maillard, A; Spirkovitch, S.; Debliquy, Marc; Haan, A. de; Decroly, André

doi:10.1016/s0925-4005(00)00630-4

Cited by 69 publications

(34 citation statements)

References 30 publications

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“…In light of the previous observations, and as reported in the literature with regard to electrical characterization of MPcs compounds [14,15,17,18,22,25,28]: higher is the order of an one-dimensional densely packed molecular architecture in the film matrix, higher is the mobility of charge carriers, resulting in a higher current passed through the devices. For the ␤-CuPc, continuity of the conductive path is disrupted by the randomly oriented ␤-CuPc crystallites, having little contributions to the conductivity [5], thus the current is much smaller than that of the ␣-CuPc films. So, the best film quality of sub-layer of these MSDIs has been obtained by vacuum sublimation of CuPc in MSDI 1.…”

Section: Current-voltage (I-v) Characteristicsmentioning

confidence: 99%

Enhanced chemosensing of ammonia based on the novel molecular semiconductor-doped insulator (MSDI) heterojunctions

Chen

Bouvet

Sizun

et al. 2011

Sensors and Actuators B: Chemical

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Section: Current-voltage (I-v) Characteristicsmentioning

confidence: 99%

Enhanced chemosensing of ammonia based on the novel molecular semiconductor-doped insulator (MSDI) heterojunctions

Chen

Bouvet

Sizun

et al. 2011

Sensors and Actuators B: Chemical

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“…In addition, their electrical properties are extremely sensitive to the effect of electron-accepting and donating gases, so their gas sensing properties have been widely explored since about twenty years [2, 3]. In this regard, ozone (O 3 ) sensors based on thin films of nickel phthalocyanine (NiPc) for pollution control have been proposed [4, 5] , as other phthalocyanine-based sensors for reducing gases as ammonia (NH 3 ) [6]. …”

Section: Introductionmentioning

confidence: 99%

A Novel Gas Sensor Transducer Based on Phthalocyanine Heterojunction Devices

Muzikante

Parra

Dobulans

et al. 2007

Sensors

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Experimental data concerning the changes in the current-voltage (I-V) performances of a molecular material-based heterojunction consisting of hexadecafluorinated nickel phthalocyanine (Ni(F16Pc)) and nickel phthalocyanine (NiPc), (Au|Ni(F16Pc)|NiPc|Al) are introduced as an unprecedented principle of transduction for gas sensing performances. The respective n- and p-type doped-insulator behaviors of the respective materials are supported, owing to the observed changes in surface potential (using the Kelvin probe method) after submission to electron donor (ammonia) and electron acceptor gases (ozone). On the other hand, the bilayer device exhibits strong variations in the built-in potential of the junction and in its rectification ratio. Moreover, large increases occur in forward and reverse currents in presence of ammonia vapors. These make possible a multimodal principle of detection controlled by a combined effect between the heterojunction and the NiPc|Al contact. Indeed, this metal/organic junction plays a critical role regarding the steady asymmetry of the I-V profiles during the device's doping even using high ammonia concentrations. This approach offers a more sophisticated alternative to the classically studied, but at times rather operation-limited, resistive gas sensors.

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“…Indeed, O 3 is greatly reactive with carbon double-bonds, inducing the C-C bonds dissociation in particular conditions. So, ozone can chemically react with carbon double-bonds of phthalocyanine macrocyles [24]. Thus, active sites number decreases firstly at the surface and secondly into the volume, inducing increase in resistance of the sensitive layer and simultaneously, decrease in sensitivity towards oxidizing gases, as observed during laboratory experiments.…”

Section: Discussionmentioning

confidence: 80%

“…Metallophthalocyanines have exhibited high sensitivity towards weak concentrations of NO 2 [22,23], good potentialities for detection of ozone [24] or even potentialities to detect VOCs [25,26]. But, phthalocyanines based sensors suffer from a lack of selectivity, from too slow kinetics of response, due especially to diffusion process of gaseous molecules into the layer, and from long term stability problems.…”

mentioning

confidence: 99%

Improvement in real time detection and selectivity of phthalocyanine gas sensors dedicated to oxidizing pollutants evaluation

et al. 2005

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illustrate the selectivity of CuPc sensors towards ozone, obtained by our methodology. We have shown that ozone selectivity is especially improved for short time of exposure (few minutes) and for phthalocyanine layer maintained at low temperature (80°C). For optimal conditions, our microsytem exhibits a threshold lower than 10 ppb, a resolution lower than 10 ppb, and good reproducibility of measurements. Performances obtained in real urban atmosphere are satisfying to ensure real time evaluation of ozone during several days. Longterm stability and the detection of NO 2 by associating chemical filters to our microsystem will be also discussed.

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Detection and titration of ozone using metallophthalocyanine based field effect transistors

Cited by 69 publications

References 30 publications

Enhanced chemosensing of ammonia based on the novel molecular semiconductor-doped insulator (MSDI) heterojunctions

Enhanced chemosensing of ammonia based on the novel molecular semiconductor-doped insulator (MSDI) heterojunctions

A Novel Gas Sensor Transducer Based on Phthalocyanine Heterojunction Devices

Improvement in real time detection and selectivity of phthalocyanine gas sensors dedicated to oxidizing pollutants evaluation

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