A proof of convergence of Gummel's algorithm for realistic device geometries
SIAM Journal on Numerical Analysis
Two-dimensional exponential fitting and applications to drift-diffusion models
SIAM Journal on Numerical Analysis
A finite element approximation theory for the drift diffusion semiconductor model
SIAM Journal on Numerical Analysis
On the stationary quantum drift-diffusion model
Zeitschrift für Angewandte Mathematik und Physik (ZAMP)
The Stationary Current-Voltage Characteristics of the Quantum Drift-Diffusion Model
SIAM Journal on Numerical Analysis
A Positivity-Preserving Numerical Scheme for a Nonlinear Fourth Order Parabolic System
SIAM Journal on Numerical Analysis
A coupled Schrödinger drift-diffusion model for quantum semiconductor device simulations
Journal of Computational Physics
Uniform Convergence of an Exponentially Fitted Scheme for the Quantum Drift Diffusion Model
SIAM Journal on Numerical Analysis
Ballistic FET modeling using QDAME: quantum device analysis by modal evaluation
IEEE Transactions on Nanotechnology
An entropic quantum drift-diffusion model for electron transport in resonant tunneling diodes
Journal of Computational Physics
An accelerated monotone iterative method for the quantum-corrected energy transport model
Journal of Computational Physics
Journal of Computational and Applied Mathematics
Quantum-corrected drift-diffusion models: Solution fixed point map and finite element approximation
Journal of Computational Physics
Nonstationary monotone iterative methods for nonlinear partial differential equations
Journal of Computational and Applied Mathematics
Journal of Computational Physics
On iterative schemes for a stationary problem to a quantum drift diffusion model
Journal of Computational Electronics
A quantum energy transport model for semiconductor device simulation
Journal of Computational Physics
An efficient parallel solution to the Wigner-Poisson equations
Proceedings of the High Performance Computing Symposium
Coupling atomistic and continuous media models for electronic device simulation
Journal of Computational Electronics
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In this paper, we propose a unified framework for Quantum-corrected drift-diffusion (QCDD) models in nanoscale semiconductor device simulation. QCDD models are presented as a suitable generalization of the classical drift-diffusion (DD) system, each particular model being identified by the constitutive relation for the quantum-correction to the electric potential. We examine two special, and relevant, examples of QCDD models; the first one is the modified DD model named Schrodinger-Poisson-drift-diffusion, and the second one is the quantum-drift-diffusion (QDD) model. For the decoupled solution of the two models, we introduce a functional iteration technique that extends the classical Gummel algorithm widely used in the iterative solution of the DD system. We discuss the finite element discretization of the various differential subsystems, with special emphasis on their stability properties, and illustrate the performance of the proposed algorithms and models on the numerical simulation of nanoscale devices in two spatial dimensions.