M. L. Van De Put

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The Wigner-Liouville (WL) equation is well suited to describe electronic transport in semiconductor devices. In the effective mass approximation the one dimensional WL equation reads &#x2202;/&#x2202;t f(x, p, t) + p/m &#x2202;/&#x2202;x f(x, p, t)-1/h<sup>2</sup> &#x222B; dp' W(x, p-p')f(x, p', t) = 0; (1) with the Wigner kernel given by W(x, p) =(More)
A carefully chosen heterostructure can significantly boost the performance of tunnel field-effect transistors (TFET). Modelling of these hetero- TFETs requires a quantum mechanical (QM) approach with an accurate band structure to allow for a correct description of band-to-band-tunneling. We have therefore developed a fully QM 2D solver, combining for the(More)
The tunneling current between two crossed graphene ribbons is described invoking the empirical pseudopotential approximation and the Bardeen transfer Hamiltonian method. Results indicate that the density of states is the most important factor determining the tunneling current between small (~nm) ribbons. The quasi-one dimensional nature of graphene(More)
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