Antimonene: A promising candidate for acetone sensors with high selectivity and sensitivity

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Abstract

Antimonene is a new 2D material and its applications in gas sensors are still deficient. We took a first principles investigation of three small organic molecules (formaldehyde, acetone, and methane) adsorption on the antimonene. We found that only the adsorption of the acetone molecule could induce a moderate adsorption energy, obvious charge transfer, and large work function change, which are suitable for gas sensor applications. Furthermore, the electron density analysis demonstrated that the strong interaction between the acetone molecule and the antimonene results from the orbital hybridization happening between the oxygen atom and the Sb atom. Finally, the adsorption of the acetone molecule on different substrates (graphene, phosphorene, and MoS2) were also investigated. The results showed that antimonene is the most suitable candidate for acetone sensors. In summary, we predicted that antimonene is a promising candidate for acetone sensors with high selectivity and sensitivity.

Original languageEnglish
Title of host publicationIEEE SENSORS 2017 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-3
Number of pages3
ISBN (Electronic)9781509010127
DOIs
StatePublished - 21 Dec 2017
Event16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom
Duration: 30 Oct 20171 Nov 2017

Publication series

NameProceedings of IEEE Sensors
Volume2017-December
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference16th IEEE SENSORS Conference, ICSENS 2017
Country/TerritoryUnited Kingdom
CityGlasgow
Period30/10/171/11/17

Keywords

  • acetone
  • antimonene
  • gas sensors
  • organic molecules

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