Nanosensors and civil enginnering Monitoring pore sizes with ultrasounds Monitoring pore humidity with CNTFET Conclusion Nanosensors for structural monitoring in civil engineering New insight on promising carbon nanotubes devices B. Lebental 1 E. Norman 2 L. Gorintin 3 P. Renaux 4 P. Bondavalli 3 C. S. Cojocaru 2 A. Ghis 4 1 Universit´ e Paris-EST, IFSTTAR, Paris, 75015, FRANCE 2 LPICM, Ecole Polytechnique, Palaiseau, 91128, France 3 Nanocarb Laboratory, Thales R&T, Palaiseau, 91767, FRANCE 4 CEA-LETI, Minatec Campus, Grenoble, 38000, FRANCE Nanospain 2011 [email protected]Nanosensors in civil engineering 1/13
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Nanosensors for structural monitoring in civil engineering · Nanosensors and civil enginnering Monitoring pore sizes with ultrasounds Monitoring pore humidity with CNTFET Conclusion
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Nanosensors and civil enginneringMonitoring pore sizes with ultrasounds
Monitoring pore humidity with CNTFETConclusion
Nanosensors for structural monitoring in civilengineering
New insight on promising carbon nanotubes devices
B. Lebental1 E. Norman2 L. Gorintin3 P. Renaux4
P. Bondavalli3 C. S. Cojocaru2 A. Ghis4
1Universite Paris-EST, IFSTTAR, Paris, 75015, FRANCE
2LPICM, Ecole Polytechnique, Palaiseau, 91128, France
3Nanocarb Laboratory, Thales R&T, Palaiseau, 91767, FRANCE
4CEA-LETI, Minatec Campus, Grenoble, 38000, FRANCE
Electrical features reproducibly sensitive to humidity
Ion, Ioff , Hysteresis,...Attributed to adsorption on silicon and on metalEspecially at high humidity
⇒ Well suited for high RH environment such as concrete
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Nanosensors and civil enginneringMonitoring pore sizes with ultrasounds
Monitoring pore humidity with CNTFETConclusion
Conclusions
Fabrication and evaluation of two promising sensing elementsVibrating CNT membranes for ultrasonic micropore monitoringCNTFET for humidity measurements in micropores
Prospects :Integration into embeddable sensing units : smart aggregatesValidation in the target environment
A whole range of novel sensing opportunities ! ! !