title: High-performance sensors based on molybdenum disulfide thin films.
abstract: High-performance sensors based on molybdenum disulfide (MoS2 ) grown by sulfurization of sputtered molybdenum layers are presented. Using a simple integration scheme, it is found that the electrical conductivity of MoS2 films is highly sensitive to NH3 adsorption, consistent with n-type semiconducting behavior. A sensitivity of 300 ppb at room temperature is achieved, showing the high potential of 2D transition metal-dichalcogenides for sensing.
authors.affiliation: Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Centre, Trinity College Dublin, Dublin 2, Ireland.
authors.forename: Kangho
authors.initials: K
authors.lastname: Lee
authors.forename: Riley
authors.initials: R
authors.lastname: Gatensby
authors.forename: Niall
authors.initials: N
authors.lastname: McEvoy
authors.forename: Toby
authors.initials: T
authors.lastname: Hallam
authors.forename: Georg S
authors.initials: GS
authors.lastname: Duesberg
keywords: charge transport; microstructures; molecular electronics; sensors; thin films