An innovative approach to overcome saturation and recovery issues of CVD graphene-based gas sensors

F. Ricciardella, S. Vollebregt, T. Polichetti, B. Alfano, E. Massera, P.M. Sarro

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

In this work, we present an innovative method which enables to solve fundamental limitations affecting graphene-based chemi-sensors operating under environmental conditions, namely the lack of signal saturation and the scarce recovery after the detection step. The method, which exploits the differential current instead of the current itself, is validated by applying it on different devices having an exposed area equal to 512 pm2. The analysis is performed by adopting nitrogen dioxide (NO2) as target gas in the range from 0.12 ppm to 1.5 ppm. The approach reliability is further confirmed by performing sensing tests towards NO2with the relative humidity set at two different levels, 30% and 50%.
Original languageEnglish
DOIs
Publication statusPublished - 21 Dec 2017
Event16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom
Duration: 21 Dec 2017 → …

Conference

Conference16th IEEE SENSORS Conference, ICSENS 2017
CountryUnited Kingdom
CityGlasgow
Period21/12/17 → …

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Ricciardella, F., Vollebregt, S., Polichetti, T., Alfano, B., Massera, E., & Sarro, P. M. (2017). An innovative approach to overcome saturation and recovery issues of CVD graphene-based gas sensors. Paper presented at 16th IEEE SENSORS Conference, ICSENS 2017, Glasgow, United Kingdom. https://doi.org/10.1109/ICSENS.2017.8234284