Inkjet Printed Chemical Sensor Array Based on Polythiophene Conductive Polymers

Details

• Personal Author:
  Cooper J ; Fedder GK ; Iovu MC ; Jeffries-EL M ; Kowalewski T ; Kusne AG ; Lambeth DN ; Li B ; McCullough RD ; Revelli JC ; Santhanam S ; Sauve G ; Schultz L ; Snyder JL ; Weiss LE ; Zhang R
• Description:
  Multiple regioregular polythiophene polymers with a variety of side chains, end groups and secondary polymer chains were used as active sensing layers in a single chip chemresistor sensor array device. A custom inkjet system was used to selectively deposit the polymers onto the array of transduction electrodes. The sensor demonstrated sensitivity and selectivity for detection and discrimination of volatile organic compounds (VOCs). The conductivity responses to VOC vapors are dependent on the chemical structure of the polymers. For certain VOCs, conductivity increased in some polymers, while it decreased in others. Principal component analysis (PCA) of sensor responses was used to discriminate between the tested VOCs. These results are correlated to the chemical structures of the different polymers, and qualitative hypothesis of chemical sensing mechanisms are proposed. This research demonstrates the potential for using such devices in VOC detection and discrimination sensing applications. [Description provided by NIOSH]
• Subjects:
  Chemistry Occupational Health Polymers Safety Solvents
• Keywords:
  Analytical-methods Analytical-processes Chemical-analysis Chemical-indicators Chemical-structure Chemical-synthesis Electrochemical-analysis Polymerization Sensitivity-testing Vapors
• ISSN:
  0925-4005
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  NPPTL - National Personal Protective Technology Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  123
• Issue:
  2
• NIOSHTIC Number:
  nn:20032381
• Citation:
  Sens Actuators B Chem 2007 May; 123(2):651-660
• Contact Point Address:
  David N. Lambeth, Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
• Email:
  lambeth@ece.cmu.edu
• Federal Fiscal Year:
  2007
• NORA Priority Area:
  All Sectors
• Peer Reviewed:
  True
• Source Full Name:
  Sensors and Actuators B: Chemical
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:24299ff0cd2fb2abcb985ab926e2103f850519860f396fb2fe98e44614261dab865121ce1783e3e879d447b4b73aaa5bc3baeb09deac7400f5f2c5c28287885d
• Download URL:
  https://stacks.cdc.gov/view/cdc/186385/cdc_186385_DS1.pdf
• File Type:
  [PDF - 1.79 MB ]