Resistive gas sensors based on MoS2 nanosheets with high response to low NO2 concentrations

Carlos Sánchez Vicente, Isabel Sayago Olmo,  José Luis Sanjurjo Medina y José Pedro Santos Blanco, por parte del ITEFI.

Spanish Conference on Electron Devices. CDE 2021.

E-congress celebrado del 9 al 11 de junio de 2021.

This work reports on two-dimensional MoS₂ nanomaterial-based resistive gas sensors and their response to sub-ppm NO₂ concentrations. The sensitive material was prepared by drop-casting MoS₂ nanosheet dispersions on silicon substrates. Morphological characteristics of the fabricated thin films of MoS₂ nanosheets were analyzed by scanning electron microscopy (SEM). The fabricated sensors provided good responses to NO₂ concentrations as low as 50 ppb at room temperature.