title: Graphene-based field effect transistor in two-dimensional paper networks.
abstract: We demonstrate the fabrication of a graphene-based field effect transistor (GFET) incorporated in a two-dimensional paper network format (2DPNs). Paper serves as both a gate dielectric and an easy-to-fabricate vessel for holding the solution with the target molecules in question. The choice of paper enables a simpler alternative approach to the construction of a GFET device. The fabricated device is shown to behave similarly to a solution-gated GFET device with electron and hole mobilities of ∼1256 cm(2) V(-1) s(-1) and ∼2298 cm(2) V(-1) s(-1) respectively and a Dirac point around ∼1 V. When using solutions of ssDNA and glucose it was found that the added molecules induce negative electrolytic gating effects shifting the conductance minimum to the right, concurrent with increasing carrier concentrations which results to an observed increase in current response correlated to the concentration of the solution used.
authors.affiliation: Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong.
authors.forename: Aldrine Abenoja
authors.initials: AA
authors.lastname: Cagang
authors.affiliation: Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong.
authors.forename: Irfan Haider
authors.initials: IH
authors.lastname: Abidi
authors.affiliation: Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong.
authors.forename: Abhishek
authors.initials: A
authors.lastname: Tyagi
authors.affiliation: Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China; The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Hu
authors.affiliation: Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China; The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China.
authors.forename: Feng
authors.initials: F
authors.lastname: Xu
authors.affiliation: Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China.
authors.forename: Tian Jian
authors.initials: TJ
authors.lastname: Lu
authors.affiliation: Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong. Electronic address: keztluo@ust.hk.
authors.forename: Zhengtang
authors.initials: Z
authors.lastname: Luo
keywords: Graphene field effect transistors; Paper analytical devices; Paper microfluidics; Two-dimensional paper networks