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ID: 148709

Highly Sensitive NO2 Detection and DMP Sensing at Room Temperature using Flexible SWNT Thick Film Sensor / Kumar, Deepak; Chaudhury, P.K.

Kumar, Deepak	Journal Article
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Summary/Abstract

Low cost; easy to fabricate and flexible single wall carbon nanotubes thick film resistor (SWNT-TFR) for detailed study of NO2 detection is reported. SWNT-TFR was fabricated by vacuum filtration technique on flexible polycarbonate membrane. SWNT-TFR sensor shows selective response to NO2. The response increases from 1.47 per cent to 17.34 per cent with increasing the NO2 concentration from 0.2 ppm to 10 ppm, respectively. Different energy sources, IR, thermal and UV were explored for achieving fast recovery of the SWNT-TFR sensor. The results showed that the gas sensor gives immediate and fast recovery in the presence of UVC light. The calculated detection limit is less than 764 ppt for NO2. We are also presenting sensing of dimethyl methylphosphonate (DMMP) as a simulant of sarin. SWNT-TFR gives repeatable response of ~2.7 per cent for 500 ppm of DMMP. This work suggests the possibility to utilise SWNTs-TFR as NO2 sensors for air-quality monitoring.

Key Words

Sensor ; Recovery ; Thin Film ; Suspension ; Response

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ID: 130761

Latest development of cooled infrared detectors at sofradir, Fr / Vuillermet, M

Vuillermet, M	Journal Article
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Publication

2013.

Summary/Abstract

This short article describes the recent developments of cooled infrared products at Sofradir. These developments are driven by the future systems needs like the increase in resolution and detection range, the reduction of the detector size and consequently of the pixel pitch and the reduction of the power consumption. To answer to these needs, Sofradir develops in collaboration with the French infrared laboratory (CEA-LETI) new products based on Mercury Cadmium Telluride technology: Scorpio LW 640x512/15 µm pitch, sensitive in the long wavelength, Jupiter MW 1280 x 1024/15 µm pitch sensitive in mid wavelength, HOT detectors operating at 150 K and the 10 µm pitch detectors.

Key Words

Sensor ; Sofradir ; Infrared ; High Operating Temperature Infrared ; Long - Wave - Infrared ; Mid - Wave - Infrared

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ID: 074145

Strike fighter partners with pilot / Ackerman, Robert K

Ackerman, Robert K	Journal Article
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Publication

2006.

Key Words

F-35 Strike Fighter ; Sensor

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