Printable polythiophene gas sensor array for low-cost electronic noses

Josephine B. Chang*, Vincent Liu, Vivek Subramanian, Kevin Sivula, Christine Luscombe, Amanda Murphy, Jinsong Liu, Jean Frechet

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

130 Scopus citations

Abstract

A route for generating arrays of printable polythiophene-based gas sensor materials suitable for low-cost manufacturing is demonstrated. Materials with complementary sensor responses are synthesized by incorporating functional groups into the molecule, either along the polymer backbone or as end-capping groups. Using these materials as printable sensor inks, a functional, integrated gas sensor array chip is fabricated using additive deposition techniques. The sensor array shows sensitivity to a range of volatile organic compounds down to concentrations of 10 ppm. A three-terminal thin film transistor structure is used, allowing the extraction of multiple parameters that help to elucidate the mechanisms responsible for sensor response and the role of the functional groups in this response.

Original languageEnglish (US)
Article number014506
JournalJournal of Applied Physics
Volume100
Issue number1
DOIs
StatePublished - Jul 26 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Printable polythiophene gas sensor array for low-cost electronic noses'. Together they form a unique fingerprint.

Cite this