1. Resistive gas sensors based on MoS2 nanosheets with high response to low NO2 concentrations
- Author
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Ministerio de Ciencia e Innovación (España), European Commission, Sayago, I. [0000-0002-5917-9469], Sánchez-Vicente, Carlos [0000-0002-7665-1075], Santos, José Pedro [0000-0002-4181-5148], Ogilvie, Sean P. [0000-0002-0433-8186], Large, Matthew J. [0000-0001-7295-7619], Dalton, Alan B. [0000-0001-8043-1377], Garriga, Rosa [0000-0003-2607-7834], Muñoz, Edgar [0000-0001-9309-2394], Sayago, Isabel, Sánchez-Vicente, Carlos, Sanjurjo, José Luis, Santos, José Pedro, Ogilvie, Sean P., Wood, Hannah J., Graf, Aline A., Large, Matthew J., Dalton, Alan B., Garriga, Rosa, Muñoz, Edgar, Ministerio de Ciencia e Innovación (España), European Commission, Sayago, I. [0000-0002-5917-9469], Sánchez-Vicente, Carlos [0000-0002-7665-1075], Santos, José Pedro [0000-0002-4181-5148], Ogilvie, Sean P. [0000-0002-0433-8186], Large, Matthew J. [0000-0001-7295-7619], Dalton, Alan B. [0000-0001-8043-1377], Garriga, Rosa [0000-0003-2607-7834], Muñoz, Edgar [0000-0001-9309-2394], Sayago, Isabel, Sánchez-Vicente, Carlos, Sanjurjo, José Luis, Santos, José Pedro, Ogilvie, Sean P., Wood, Hannah J., Graf, Aline A., Large, Matthew J., Dalton, Alan B., Garriga, Rosa, and Muñoz, Edgar
- Abstract
This work reports on two-dimensional MoS 2 nanomaterial-based resistive gas sensors and their response to sub-ppm NO 2 concentrations. The sensitive material was prepared by drop-casting MoS 2 nanosheet dispersions on silicon nitride suspended membranes. The sensor response was studied at operating temperatures up to 300 °C. The fabricated sensors provided good responses to NO 2 concentrations as low as 20 ppb at room temperature. The n-type MoS 2 sensing mechanism is here discussed.
- Published
- 2021