Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
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.
Diffusion of holes and electrons
15 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
Diffusion is a process of particles distributing themselves from regions of high- to low- concentrations. In semi-classical electronics these particles are the charge carriers (electrons and holes). The rate at which a carrier can diffuse is called diffusion constant with units of cm2/s. The...
Fermi-Dirac statistics with temperature
Fermi-Dirac statistics is applied to identical particles with half-integer spin (such as electrons) in a system that is in thermal equilibrium. Since particles are assumed to have negligible mutual interactions, this allows a multi-particle system to be described in terms of single-particle...
12 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
In quantum mechanics the time-independent Schrodinger's equation can be solved for eigenfunctions (also called eigenstates or wave-functions) and corresponding eigenenergies (or energy levels) for a stationary physical system. The wavefunction itself can take on negative and positive values and...
Electronic band structure
In solid-state physics, the electronic band structure (or simply band structure) of a solid describes ranges of energy in which an electron is "forbidden" or "allowed". The band structure is also often called the dispersion or the E(k) relationship. It is a mathematical relationship between the...
RTD with NEGF Demonstration: Basic RTD Asymmetric
12 Jun 2009 | | Contributor(s):: Gerhard Klimeck
This video shows the analysis of a 2 barrier Resonant Tunneling Diode (RTD) over 21 bias points using RTDLab. Several powerful features of this tool are demonstrated.
Band Structure Lab Demonstration: Bulk Strain
This video shows an electronic structure calculation of bulk Si using Band Structure Lab. Several powerful features of this tool are demonstrated.
Crystal Viewer Demonstration: Bravais Lattices
12 Jun 2009 | | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the exploration of several crystal structures using the Crystal Viewer tool. Several powerful features of this tool are demonstrated.
Crystal Viewer Demonstration: Bravais Lattices 2
This video shows the exploration of several crystal structures using the Crystal Viewer tool. Several powerful features of this tool are demonstrated
Crystal Viewer Demonstration: Various Crystal Systems
This video shows the use of the Crystal Viewer Tool to visualize several crystal systems, including Si, GaAs, C60 Buckyball, and a carbon nanotube. Crystal systems are rotated in 3D, zoomed in and out, and the lattice style changes from sticks and balls to lines to spheres.
MOSFet Demonstration: MOSFET Device Simulation and Analysis
11 Jun 2009 | | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the simulation and analysis of a MOSFET device using the MOSFet tool. Several powerful analytic features of this tool are demonstrated.
MOSCap Demonstration: MOS Capacitor Simulation
This video shows the simulation of a MOS capacitor using the MOSCAP tool. Several powerful analytic features of this tool are demonstrated.
Piece-Wise Constant Potential Barriers Tool Demonstration: Bandstructure Formation with Finite Superlattices
This video shows the simulation and analysis of a systems with a series of potential barriers. Several powerful analytic features of Piece-wise Constant Potential Barrier Tool (PCPBT) are demonstrated.
Periodic Potential Lab Demonstration: Standard Kroenig-Penney Model
This video shows the simulation of a 1D square well using the Periodic Potential Lab. The calculated output includes plots of the allowed energybands, a table of the band edges and band gaps, plots of reduced and expanded dispersion relations, and plots comparing the dispersion relations to...
Quantum Dot Lab Demonstration: Pyramidal Qdots
This video shows the simulation and analysis of a pyramid-shaped quantum dot using Quantum Dot Lab. Several powerful analytic features of this tool are demonstrated.
PN Junction Lab Demonstration: Asymmetric PN Junctions
This video shows the simulation and analysis of a several PN junctions using PN Junction Lab, which is powered by PADRE. Several powerful analytic features of this tool are demonstrated.
OMEN Nanowire Demonstration: Nanowire Simulation and Analysis
This video shows the simulation and analysis of a nanowire using OMEN Nanowire. Several powerful analytic features of this tool are demonstrated.
Particle-Wave Duality: an Animation
out of 5 stars
07 Jul 2008 |
This animation is publicly available at YouTube under http://www.youtube.com/watch?v=DfPeprQ7oGc
General Introduction to Nanotechnology
20 Apr 2007 | | Contributor(s):: Hyung-Seok Hahm
This is an 80 second movie clip. The camera zooms in from a computer to molecules with a narration.The design goals are - Give a smooth introduction to nano-world- Deliver ideas of how small nano-scale objects are with a zoom-in- Inform that nanotechnology is related to everyday thingsProduced...
Quantum-dot Cellular Automata (QCA) - Memory Cells
03 Feb 2006 |
Scientists and engineers are looking for completely different ways of storing and analyzing information. Quantum-dot Cellular Automata are one possible solution. In computers of the future, transistors may be replaced by assemblies of quantum dots called Quantum-dot Cellular Automata (QCAs).This...
Quantum-dot Cellular Automata (QCA) - Logic Gates
An earlier animation described how "Quantum-dot Cellular Automata" (QCAs) could serve as memory cells and wires. This animation contnues the story by describing how QCAs can be made into MAJORITY, OR, AND, and INVERTER logic gates.