Miniature nitro and peroxide vapor sensors using nanoporous thin films

Robert Blue, Neil Thomson, Stewart J. Taylor, Ashleigh J. Fletcher, Peter J. Skabara, Deepak Uttamchandani

Research output: Contribution to journalArticle

3 Citations (Scopus)
93 Downloads (Pure)

Abstract

With the increased and continuous threat of terrorist attacks in public areas, new sensors are required to safeguard the public from home-made explosive devices. Current commercial sensors for explosive vapors are high-cost, bulky equipment not amenable to mass production, thus limiting their widespread deployment within society. We are conducting research on polymer-based microsensors that can overcome these limitations. Our devices offer an approach to the realization of low-cost sensors that can readily be placed as a network of electronic sentinels that can be permanently located in areas of public access. The polymers are chemically tailored to have a high affinity for nitro and peroxide vapors and are grown electrochemically on microelectrodes. Novel nanoporous polymer-based sensors are demonstrated with a detection level of 200 ppb of nitro vapors. In addition, a prototype reversible sensor for peroxide vapors is demonstrated to low ppm concentrations.
Original languageEnglish
Pages (from-to)8767-8774
Number of pages8
JournalIEEE Sensors Journal
Volume16
Issue number24
Early online date27 Apr 2016
DOIs
Publication statusPublished - 15 Dec 2016

Keywords

  • explosive sensors
  • nitro-group
  • peroxides
  • microsensors
  • nanoporous polymers

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