A theoretical analysis is used to illuminate the importance of using the new signal processing method when the sensing device suffers from slow recovery and non-negligible contact resistance. We then present a new method of signal processing/data interpretation that addresses (i) sensing devices with long recovery periods (such as required for sensing gases with these R-GO sensors) more » as well as (ii) device-to-device variations. These sensors exhibited a 360% increase in response when exposed to 100 ppm NO in air, compared with thermally reduced graphene oxide sensors we reported earlier. We first report on the fabrication and characterization of gas sensors using a back-gated field-effect transistor platform with chemically reduced graphene oxide (R-GO) as the conducting channel. Graphene is worth evaluating for chemical sensing and biosensing due to its outstanding physical and chemical properties. Publication Date: Sponsoring Org.: USDOE OSTI Identifier: 1826831 Grant/Contract Number: DE‐SC0012577 Resource Type: Publisher's Accepted Manuscript Journal Name: Surface and Interface Analysis Additional Journal Information: Journal Name: Surface and Interface Analysis Journal Volume: 54 Journal Issue: 1 Journal ID: ISSN 0142-2421 Publisher: Wiley Blackwell (John Wiley & Sons) Country of Publication: United Kingdom Language: English Department of Chemical and Biomolecular Engineering Lehigh University Bethlehem PA USA.Institut des Matériaux Jean Rouxel (IMN) Université de Nantes, CNRS Nantes France.School of Chemistry Cardiff University Cardiff UK, HarwellXPS – EPSRC National Facility for Photoelectron Spectroscopy Research Complex at Harwell (RCaH) Didcot UK.
![xps peak identification xps peak identification](http://www.casaxps.com/help_manual/manual_updates/chemical_state_image_analysis_by_xps_files/image004.jpg)
Mark Wainwright Analytical Centre University of New South Wales Sydney NSW Australia.Materials Characterisation and Fabrication Platform, Department of Chemical Engineering University of Melbourne Melbourne VIC Australia.Department of Chemistry and Biochemistry Brigham Young University Provo UT USA.