title: Single light-emitting polymer nanofiber field-effect transistors.
abstract: We report on single nanofiber field-effect transistors made by the light-emitting polymer, poly(2-methoxy-5-(2-ethylhexoxy)-1,4-phenylenevinylene). We measure electrical performances comparable to or better than those of thin-film transistors by the same organic semiconductor, due to the molecular alignment induced by electrospinning, such as hole mobility of the order of 10(-3) cm(2) V(-1) s(-1) and on/off current ratios up to 780. In addition, we observe controllable photoluminescence intensity quenching by varying the gate voltage up to -40 V with device operation in the luministor mode. Single light-emitting polymer nanofiber transistors coupling electrical and optical functionalities open the way towards low cost and flexible one-dimensional switches and nanofiber-based light-emitting transistors.
authors.affiliation: NNL, National Nanotechnology Laboratory of CNR-Istituto Nanoscienze, Università del Salento, via Arnesano, I-73100 Lecce, Italy.
authors.forename: Deyu
authors.initials: D
authors.lastname: Tu
authors.forename: Stefano
authors.initials: S
authors.lastname: Pagliara
authors.forename: Andrea
authors.initials: A
authors.lastname: Camposeo
authors.forename: Luana
authors.initials: L
authors.lastname: Persano
authors.forename: Roberto
authors.initials: R
authors.lastname: Cingolani
authors.forename: Dario
authors.initials: D
authors.lastname: Pisignano