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Progress in technology has brought microelectronics to the nanoscale, but nanoelectronics is not yet a well-defined engineering discipline with a coherent, experimentally verified, theoretical framework. The NCN has a vision for a new, 'bottom-up' approach to electronics, which involves: understanding electronic conduction at the atomistic level; formulating new simulation techniques; developing a new generation of software tools; and bringing this new understanding and perspective into the classroom. We address problems in atomistic phenomena, quantum transport, percolative transport in inhomogeneous media, reliability, and the connection of nanoelectronics to new problems such as biology, medicine, and energy. We work closely with experimentalists to understand nanoscale phenomena and to explore new device concepts. In the course of this work, we produce open source software tools and educational resources that we share with the community through the nanoHUB.
This page is a starting point for nanoHUB users interested in nanoelectronics. It lists key resources developed by the NCN Nanoelectronics team. The nanoHUB contains many more resources for nanoelectronics, and they can be located with the nanoHUB search function. To find all nanoelectronics resources, search for 'nanoelectronics.' To find those contributed by the NCN nanoelectronics team, search for 'NCNnanoelectronics.'
More information on Nanoelectronics can be found here.
ACUTE: Hydrodynamic Modeling
23 Jul 2010 | Contributor(s):: Dragica Vasileska
This set of slides clearly explains when and where Hydrodynamic models can be used and what are their limitations.
Quantum Wells, Heterostructures and Superlattices
23 Jul 2010 | Contributor(s):: Stephen M. Goodnick, Dragica Vasileska
this is an overview of the analysis and the application of quantum wells, heterostructures and superlattices.
Explanation of Rode's Iterative Procedure
20 Jul 2010 | Contributor(s):: David K. Ferry, Dragica Vasileska
This set of slides describes the Rode's iterative procedure for the mobility calculation when the scattering mechanisms are neither elastic nor isotropic such as is polar optical phonon scattering.
20 Jul 2010 | Contributor(s):: Dragica Vasileska, David K. Ferry
This set of slides describes the derivation of Fermi-Dirac, Maxwell-Boltzmann and Bose-Einstein statistics.
Time-Dependent Perturbation Theory
This set of slides describes in detail the derivation of Fermi's Golden Rule.
2D Scattering Rates Calculation
this set of slides describes the calculation of the 2D scattering rates in Q2DEG.
AQME Exercise: Bound States – Theoretical Exercise
20 Jul 2010 | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
The objective of this exercise is to teach the students the theory behind bound states in a quantum well.
ABACUS Exercise: Light Shining on a Semiconductor
The objective of this exercise is to examine the behavior of semiconductors under illumination with light.
SCHRED Exercise: MOS Capacitor Analysis
The objective of this exercise is to examine the influence of semiclassical and quantum-mechanical charge description on the low-frequency CV-curves. It also teaches one the influence of poly-gate depletion on the low-frequency CV-curves.
ABACUS Exercise: Carrier Statistics
20 Jul 2010 | Contributor(s):: Dragica Vasileska
The objective of this exercise is to derive Bose-Einstein and Maxwell-Boltzmann statistics.
ABACUS Exercise: Bandstructure – Kronig-Penney Model and Tight-Binding Exercise
The objective of this exercise is to start with the simple Kronig-Penney model and understand formations of bands and gaps in the dispersion relation that describes the motion of carriers in 1D periodic potentials. The second exercise examines the behavior of the bands at the Brillouin zone...
ACUTE Exercise: Scattering Rates
The objective of this exercise is to examine first the non-elasticity of the acoustic phonon scattering. Then non-parabolicity of intervalley scattering is revisited and finally alloy disorder scattering has to be derived.
ACUTE Exercise: 2D Scattering Rates
The objective of this exercise is to calculate 2D scattering rate for polar opti-cal phonon scattering.
ABACUS Exercise: Carriers Distribution vs. Energy
The objective of this problem is to teach the students how the occupancy function changes with temperature, therefore affecting the population of available energy states in the conduction and valence bands.
ABACUS Exercise: Conductivity and Carrier Concentration
The objective of the first problem is to teach the students how to calculate carrier conductivity in a bulk semiconductor material. The objective of the second problem is to calculate the electron and hole concentrations in a bulk sample for fixed donor and varying acceptor concentration.
ABACUS Exercise: Crystal Lattices and Miler Indices
The objective of these assignments is to teach the students about crystal lattices and Miler indices for planes and directions.
Atomistic Simulations of Reliability
06 Jul 2010 | Contributor(s):: Dragica Vasileska
Discrete impurity effects in terms of their statistical variations in number and position in the inversion and depletion region of a MOSFET, as the gate length is aggressively scaled, have recently been researched as a major cause of reliability degradation observed in intra-die and die-to-die...
Rode's Method: Theory and Implementation
This set of teaching materials provides theoretical description of the Rode's method for the low field mobility calculation that is accompanied with a MATLAB code for the low field mobility calculation for GaAs material at different temperatures and different doping concentrations. Note that the...
Analytical and Numerical Solution of the Double Barrier Problem
28 Jun 2010 | Contributor(s):: Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska
Tunneling is fully quantum-mechanical effect that does not have classical analog. Tunneling has revolutionized surface science by its utilization in scanning tunneling microscopes. In some device applications tunneling is required for the operation of the device (Resonant tunneling diodes,...
Band Structure Lab Exercise
Investigations of the electron energy spectra of solids form one of the most active fields of research. Knowledge of band theory is essential for application to specific problems such as Gunn diodes, tunnel diodes, photo-detectors etc. There are several standard methods to compute the band...