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Sökning: WFRF:(Torrisi R)

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  • Carey, T., et al. (författare)
  • Fully inkjet-printed two-dimensional material field-effect heterojunctions for wearable and textile electronics
  • 2017
  • Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723 .- 2041-1723. ; 8:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Fully printed wearable electronics based on two-dimensional (2D) material heterojunction structures also known as heterostructures, such as field-effect transistors, require robust and reproducible printed multi-layer stacks consisting of active channel, dielectric and conductive contact layers. Solution processing of graphite and other layered materials provides low-cost inks enabling printed electronic devices, for example by inkjet printing. However, the limited quality of the 2D-material inks, the complexity of the layered arrangement, and the lack of a dielectric 2D-material ink able to operate at room temperature, under strain and after several washing cycles has impeded the fabrication of electronic devices on textile with fully printed 2D heterostructures. Here we demonstrate fully inkjet-printed 2D-material active heterostructures with graphene and hexagonal-boron nitride (h-BN) inks, and use them to fabricate all inkjet-printed flexible and washable field-effect transistors on textile, reaching a field-effect mobility of ~91 cm2 V-1 s-1, at low voltage (<5 V). This enables fully inkjet-printed electronic circuits, such as reprogrammable volatile memory cells, complementary inverters and OR logic gates.
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  • Ibragimov, Nail H., et al. (författare)
  • Quasi self-adjoint nonlinear wave equations
  • 2010
  • Ingår i: Journal of Physics A. - : IOP Publishing Ltd. - 1751-8113 .- 1751-8121. ; 43:44
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper we generalize the classification of self-adjoint second-order linear partial differential equation to a family of nonlinear wave equations with two independent variables. We find a class of quasi self-adjoint nonlinear equations which includes the self-adjoint linear equations as a particular case. The property of a differential equation to be quasi self-adjoint is important, e.g. for constructing conservation laws associated with symmetries of the differential equation.
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  • Ibragimov, Nail H., et al. (författare)
  • Self-adjointness and conservation laws of a generalized Burgers equation
  • 2011
  • Ingår i: Journal of Physics A. - : IOP Publishing Ltd. - 1751-8113 .- 1751-8121. ; 44:14
  • Tidskriftsartikel (refereegranskat)abstract
    • A (2 + 1)-dimensional generalized Burgers equation is considered. Having written this equation as a system of two dependent variables, we show that it is quasi self-adjoint and find a nontrivial additional conservation law.
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  • Resultat 1-5 av 5

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