In this work, 2D WS2 nanosheets prepared by the exfoliation of WS2 with Li-intercalation was combined with GO produced by the Hummer method for humidity sensing applications. The GO and WS2 solutions were mixed with an equal concentration and coated on conductometric transducers. Sensing measurements towards humidity (0–80% RH) at room temperature revealed that the humidity response of hybrid was substantially higher by a factor of 3–9 depending on the RH value compared with those of GO and WS2. Moreover, no cross sensitivity to common gaseous compounds was observed. Therefore, the GO/2D WS2 composite is a highly promising humidity sensor.

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hummer method humidity sensing work 2d ws2 nanosheets go2d ws2 composite

Elisabetta Comini,Gorgio Sberveglieri,Anurat Wisitsora-at,Zdenek Sofer,Carmen C. Mayorga Martinez,Martin Pumera,Wojtek Wlodarski,.GO/2D WS2 Based Humidity Sensor. 1 (4),.

Elisabetta Comini,Gorgio Sberveglieri,Anurat Wisitsora-at,Zdenek Sofer,Carmen C. Mayorga Martinez,Martin Pumera,Wojtek Wlodarski,"GO/2D WS2 Based Humidity Sensor" 1

Elisabetta Comini,Gorgio Sberveglieri,Anurat Wisitsora-at,Zdenek Sofer,Carmen C. Mayorga Martinez,Martin Pumera,Wojtek Wlodarski,"GO/2D WS2 Based Humidity Sensor"