Ultrahigh sensitivity with excellent recovery time for NH₃ and NO₂ in pristine and defect mediated Janus WSSe monolayers

Abstract

<p>We demonstrated ultrahigh sensitivity with excellent recovery time for H₂S, NH₃, NO₂, and NO molecules on the sulfur and selenium surfaces of Janus WSSe monolayers using density functional theory.</p>

Recent Progress of Nanostructured Sensing Materials from 0D to 3D: Overview of Structure–Property‐Application Relationship for Gas Sensors

“…studied adsorption energies for H 2 S, NH 3 , NO 2 and NO molecules on the S and Se surfaces of Janus WSSe monolayers. [ 185 ] The Se surface showed stronger adsorption than the S surface of the WSSe monolayer. In addition, it was noted that a defect‐including WSSe exhibited enhanced adsorption energy with fast recovery.…”

Heterostructure AZO/WSeTe/W(S/Se)2 as an Efficient Single Junction Solar Cell with Ultrathin Janus WSeTe Buffer Layer

“…This Janus MoSSe monolayer does not possess the inversion symmetry because of two different chalcogens. Various electronic, optical, piezoelectric, magnetic, electrochemical, and sensing, − photocatalysis , and thermoelectric properties of such TMD based Janus monolayers are studied . The optoelectronic properties of TMD based Janus MXY monolayer are studied by Wang et al, and it was observed that these are suitable for solar cell application .…”

Effects of external electric field on the sensing property of volatile organic compounds over Janus MoSSe monolayer: a first-principles investigation

“…For example, using rst-principle calculations, Janus MoSSe monolayers have been studied in the sensing NO 2 , NH 3 , SOF 6 decompositions species, adulterant compounds, and volatile organic compounds (VOCs). [22][23][24][25][26][27][28] In these reports, the sensing properties depend on electronic interactions and adsorption strength between the target gaseous molecules and the sensor materials. The enormous adsorption energy will lead to stronger sensitivity.…”