title: Role of Charge Traps in the Performance of Atomically Thin Transistors.
abstract: Transient currents in atomically thin MoTe2field-effect transistors (FETs) are measured during cycles of pulses through the gate electrode. The curves of the transient currents are analyzed in light of a newly proposed model for charge-trapping dynamics that renders a time-dependent change in the threshold voltage as the dominant effect on the channel hysteretic behavior over emission currents from the charge traps. The proposed model is expected to be instrumental in understanding the fundamental physics that governs the performance of atomically thin FETs and is applicable to the entire class of atomically thin-based devices. Hence, the model is vital to the intelligent design of fast and highly efficient optoelectronic devices.
authors.affiliation: Centre for Graphene Science, Department of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK.
authors.forename: Iddo
authors.initials: I
authors.lastname: Amit
authors.affiliation: Centre for Graphene Science, Department of Engineering, University of Exeter, Stocker Road, Exeter, EX4 4QF, UK.
authors.forename: Tobias J
authors.initials: TJ
authors.lastname: Octon
authors.affiliation: Centre for Graphene Science, Department of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK.
authors.forename: Nicola J
authors.initials: NJ
authors.lastname: Townsend
authors.affiliation: Department of Materials, Imperial College London, London, SW7 2AZ, UK.
authors.forename: Francesco
authors.initials: F
authors.lastname: Reale
authors.affiliation: Centre for Graphene Science, Department of Engineering, University of Exeter, Stocker Road, Exeter, EX4 4QF, UK.
authors.forename: C David
authors.initials: CD
authors.lastname: Wright
authors.affiliation: Department of Materials, Imperial College London, London, SW7 2AZ, UK.
authors.forename: Cecilia
authors.initials: C
authors.lastname: Mattevi
authors.affiliation: Centre for Graphene Science, Department of Engineering, University of Exeter, Stocker Road, Exeter, EX4 4QF, UK.
authors.forename: Monica F
authors.initials: MF
authors.lastname: Craciun
authors.affiliation: Centre for Graphene Science, Department of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK.
authors.forename: Saverio
authors.initials: S
authors.lastname: Russo
keywords: 2D materials; MoTe2; current transients; field-effect transistors; surface states