Design of nanosensing platform based on zinc oxide nanowire arrays

In this work, we demonstrate fabrication of a nanosensing platform for detecting hazardous p-nitrophenol vapors. ZnO nanowire arrays were synthesized on insulating sapphire substrate through chemical vapor deposition process (CVD) in a customized furnace. Nanowire surfaces were chemically functional...

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Bibliographic Details
Main Authors: Gupta, Anurag, Spryn, Mitchell, Kim, Bruce C., Edwards, Eugene, Brantley, Christina, Ruffin, Paul
Format: Conference Proceeding
Language:English
Subjects:
Chemicals
Nanoscale devices
Optical sensors
Sensor arrays
Substrates
Zinc oxide
Online Access:Request full text
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Summary:In this work, we demonstrate fabrication of a nanosensing platform for detecting hazardous p-nitrophenol vapors. ZnO nanowire arrays were synthesized on insulating sapphire substrate through chemical vapor deposition process (CVD) in a customized furnace. Nanowire surfaces were chemically functionalized with an optically active receptor to achieve synergistic opto-electronic response from the device. Photoluminescence studies were conducted to validate optical sensing mechanism. Electrical measurements of the pristine and functionalized nanowire array devices provided evidence to support opto-electronic operation of the sensing device. Furthermore, a prospective circuit design to obtain, process and transmit data from an unmanned platform to a remote location is presented.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2013.6572346