Research Article

Catalyst-Free Vapor-Phase Method for Direct Integration of Gas Sensing Nanostructures with Polymeric Transducing Platforms

Table 1

Summary of the gas sensing response and techniques employed to integrate sensing materials and flexible transducing platforms.

MaterialMethodGas ppm , °C / , s , sReference

WO3 (NNs)AACVDH2502501.1120150This work
ZnO (NWs)Thermal oxidationH250028011<10[9]
ZnO (NRs)Thermal oxidationNO20.51.8[10]
ZnO (NRs)HydrothermalEtOH103009 [7]
Pd/ZnO (NRs)HydrothermalH21000RT1.9[8]
ZnO (NRs)ThermolysisEtOH1003003.11237318[22]
SnO2 (TT)Drop coating 232523.8[23]
Pd/SnO2 (TT)Drop coatingEtOH400150[24]
WO3 (TT)Drop coatingNO25200[24]
SputteringO30.02RT1.8[25]
CNFsSprayNH35002201.3300[26]
CNT/graphenePost transfer*NO251.1>30>30[27]
CNTWet transferDMMP1RT4[28]
CNTMech. abrasionNH30.52–13>200>200[29]

—: not specified, *dry or wet post transfer (not specified), TT: thick film, NWs: nanowires, NNs: nanoneedles, NRs: nanorods, CNFs: carbon nanofibers, PECVD: plasma enhanced CVD, and RT: room temperature.