Development of a Prototype Chemical Agent Detector System Based on Semiconducting Metal Oxide (SMO) Thin Film Technology
Abstract
This research grant focused on carrying out 6.1 research activities to advance the development a next generation chemical agent detector system based on semiconducting metal oxide (SMO) technology. The tasks and the resulting findings described in detail in this report, emphasize strategies to improve the selectivity, sensitivity, and miniaturization of the SMO detector system. Experiments were performed using organophosphonates and various alcohols as target gases Results are reported concerning (i) selective concentration of organophosphonates on nano-sized WO3 powders (ii) selective filtering and detection of decomposition products using catalyst-modified silica membranes (iii) kinetic signatures and decomposition reaction products associated with reactions of organophosphonates, alcohols and ethers on WO3 surfaces (iv) heteroepitaxial WO3 sensing films grown on BaF2/Si(100) substrates and (vi) a dosiometer sensor based on poisoning of dispersed copper oxide nanoparticles on WO3 films.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 15, 2003
- Accession Number
- ADA414915
Entities
People
- B.G. Frederick
- Carl J. Tripp
- Robert J. Lad
- William Desisto
Organizations
- University of Maine