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In many parts of the world, wildfire season has become an almost permanent fixture of the annual calendar. How can we better protect critical assets…
In many parts of the world, wildfire season has become an almost permanent fixture of the annual calendar. How can we better protect critical assets…
Liked by Abhishek Motayed
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I am thrilled to announce that N5SHIELD has been selected as one of the 29 Qualified Teams worldwide to advance to the next round of the XPRIZE…
I am thrilled to announce that N5SHIELD has been selected as one of the 29 Qualified Teams worldwide to advance to the next round of the XPRIZE…
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First day of the ESRI Safety and Security Summit was fantastic! Looking forward to tomorrow and the XPRIZE Wildfire Qualified Teams announcement for…
First day of the ESRI Safety and Security Summit was fantastic! Looking forward to tomorrow and the XPRIZE Wildfire Qualified Teams announcement for…
Liked by Abhishek Motayed
Experience & Education
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N5 Sensors, Inc.
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Publications
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A solution-processed high-efficiency p-NiO/n-ZnO heterojunction photodetector
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UV-assisted alcohol sensing using SnO2 functionalized GaN nanowire devices
Sensors and Actuators B: Chemical
A chemiresistor type sensor for selective alcohol sensing has been realized from gallium nitride (GaN) nanowires (NWs) functionalized with sputter-deposited tin dioxide (SnO2) nanoparticles. Two-terminal devices were fabricated using standard microfabrication techniques with the individual NWs air-bridged between the two metal contact pads. Through a combination of X-ray diffraction (XRD), electron-backscatter-diffraction (EBSD), and TEM/STEM techniques, we confirmed the presence of rutile SnO2…
A chemiresistor type sensor for selective alcohol sensing has been realized from gallium nitride (GaN) nanowires (NWs) functionalized with sputter-deposited tin dioxide (SnO2) nanoparticles. Two-terminal devices were fabricated using standard microfabrication techniques with the individual NWs air-bridged between the two metal contact pads. Through a combination of X-ray diffraction (XRD), electron-backscatter-diffraction (EBSD), and TEM/STEM techniques, we confirmed the presence of rutile SnO2 nanocrystals on the GaN surface. A change in device current is observed when the device is exposed to alcohol vapors (methanol, ethanol, propanol, and butanol) at room temperature under 215–400 nm UV illumination with 3.75 mW/m2 intensity at 365 nm wavelength. The sensor reproducibly responded to a wide range of alcohol vapor concentrations, from 5000 μmol/mol (ppm) down to 1 μmol/mol (ppm) in air.
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Languages
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Bengali
Native or bilingual proficiency
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Hindi
Limited working proficiency
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English
Native or bilingual proficiency
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