Cristin-resultat-ID: 1753775
Sist endret: 11. februar 2021, 09:17
Resultat
Poster
2019

NOx detection by MoS2/hBN heterostructures

Bidragsytere:
  • Ayaz Ali
  • Ozhan Koybasi
  • Wen Xing
  • Marta B. Muniz
  • Daniel Nilsen Wright
  • Alain Marc C Ferber
  • mfl.

Presentasjon

Navn på arrangementet: Graphene Week 2019
Sted: Helsinki
Dato fra: 23. september 2019
Dato til: 27. september 2019

Om resultatet

Poster
Publiseringsår: 2019

Beskrivelse Beskrivelse

Tittel

NOx detection by MoS2/hBN heterostructures

Sammendrag

The increase in levels of air-pollutants due to growing urbanization and industrialization worldwide poses a major risk for human health as well as having bad effects on the global environment such as acid rains, photochemical smog, ozone layer deterioration and global warming. Exposure to hazardous gaseous pollutants such as NOx, even in small concentrations can have a significant detrimental effect on the health of human beings [1]-[3]. Two-dimensional (2D) materials have emerged as very promising class of materials which have been used to develop ultrahigh sensitivity and low-power-consumption gas sensors due to their unmatched surface area per unit volume, high surface activities and high mobility of charge transport [4]. 2D heterostructures have been used to demonstrate novel physics and improved device performance, specifically in the case where hBN has been used as a substrate because of its atomically flat surface [5]. In this presentation, we demonstrate ultra-sensitive MoS2/hBN heterostructure devices for NOx detection. MoS2/hBN devices were fabricated by dry transfer techniques in addition to devices of MoS2 directly on SiO2 both with varying thicknesses of MoS2. The NOx detection performance of devices of varying MoS2 thickness both on hBN and SiO2 will be presented. [1] Kampa et al., Environmental Pollution, 151, 362 (2008) [2] Kumar et al., Atmospheric Environment 122, 657(2015) [3] Gulia et al., Atmospheric Pollution Research 6 (2), 286 (2015) [4] Li et al, Small, 8, 63 (2012) [5] Cao et al, Nature, 556, 43 (2018)

Bidragsytere

Ayaz Ali

  • Tilknyttet:
    Forfatter

Ozhan Koybasi

  • Tilknyttet:
    Forfatter
    ved Smart Sensors and Microsystems ved SINTEF AS
Aktiv cristin-person

Wen Xing

  • Tilknyttet:
    Forfatter
    ved Bærekraftig energiteknologi ved SINTEF AS

Marta B. Muniz

  • Tilknyttet:
    Forfatter

Daniel Nilsen Wright

  • Tilknyttet:
    Forfatter
    ved Smart Sensors and Microsystems ved SINTEF AS
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