Electrospun PEDOT:PSS/carbon nanotubes/PVP nanofibers as chemiresistors for aromatic volatile organic compounds

PEDOT:PSS/MWCNTsCOOH/PVP and PEDOT:PSS/PVP nanofibers were successfully fabricated by electrospinning in order to use as a chemiresistor for detecting the aromatic volatile organic compounds (VOCs) for the first time. The response magnitudes and the cyclic tests of electrospun PEDOT:PSS/MWCNTsCOOH/PVP and PEDOT:PSS/PVP nanofibers to benzene, toluene, and o-xylene vapors were investigated. It was found that electrospun PEDOT:PSS/MWCNTsCOOH/PVP nanofibers showed much enhanced response magnitude than that of electrospun PEDOT:PSS/PVP nanofibers to benzene, toluene, and o-xylene, respectively. Also, electrospun PEDOT:PSS/MWCNTsCOOH/PVP and PEDOT:PSS/PVP nanofibers displayed reversible and reproducible responses to benzene vapor at room temperature.