title: Design of Core-Shell Heterostructure Nanofibers with Different Work Function and Their Sensing Properties to Trimethylamine.
abstract: The metal oxide semiconductor (MOS) core-shell heterostructure nanofibers (NFs) have been successfully synthesized via an environmentally friendly coaxial electrospinning approach. To demonstrate the potential applications of the as-prepared samples, sensors based on MOS core-shell heterostructure NFs have been fabricated and their gas sensing properties were investigated. Results show that the sensors exhibit an advanced gas sensing property to trimethylamine (TMA) including the outstanding selectivity and rapid response/recovery processes in comparison with the sensors based on single MOS NFs. These phenomena are closely associated with the electron flow caused by the work function difference between MOS of the core and the shell. The approach proposed in this study may contribute to the realization of more sensitive MOS core-shell heterostructure sensors.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P.R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P.R. China.
authors.forename: Xing
authors.initials: X
authors.lastname: Gao
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P.R. China.
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P.R. China.|State Key Laboratory of Transducer Technology, Chinese Academy of Science , Changchun 130012, P.R. China.
authors.forename: Tong
authors.initials: T
authors.lastname: Zhang
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P.R. China.
authors.forename: Geyu
authors.initials: G
authors.lastname: Lu
authors.affiliation: Institute of Physical Chemistry, University of Tuebingen , 72076 Tuebingen, Germany.
authors.forename: Nicolae
authors.initials: N
authors.lastname: Barsan
keywords: TMA; coaxial electrospinning; core−shell heterostructure; gas sensor; nanofibers