Inkjet Printing of Chemiresistive Sensors for the Detection of Volatile Organic Compounds
Abstract:We report about inkjet printing of chemiresistive sensors for the detection of volatile organic compounds (VOCs). The sensor comprises three fully inkjet-printed layers of (i) silver interdigitated electrodes (IDE), (ii) multi-walled carbon nanotubes (MWCNTs) and (iii) poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester (PSE) deposited on glass and polymer substrates. A composite-like structure of PSE and MWCNTs could be obtained by applying optimized printing parameters. Thus, this layer can act as chemiresistive vapor sensor due to the change of electrical resistance in presence of selected VOCs. We have studied the response of the sensors to various VOCs and different vapor concentrations of the VOCs. To investigate the morphology and the properties of the inkjet-printed thin films, profilometry and scanning electron microscopy (SEM) as well as electrical measurements were employed.
Document Type: Research Article
Publication date: January 1, 2012
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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