
Nanotechnology 501 Lecture Series
22 Feb 2005  Series  Contributor(s): Gerhard Klimeck (editor), Mark Lundstrom (editor), Joseph M. Cychosz (editor)
Welcome to Nanotechnology 501, a series of lectures designed to provide an introduction to nanotechnology. This series is similar to our popular lecture series Nanotechnology 101, but it is directed at the graduate students and professionals.

Quantum Mechanics for Engineers: Podcasts
07 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck, David K. Ferry
This course will introduce the students to the basic concepts and postulates of quantum mechanics. Examples will include simple systems such as particle in an infinite and finite well, 1D and 2D harmonic oscillator and tunneling. Numerous approximation techniques, such as WKB method, timedependent and timeindependent perturbation theory, variational methods and numerical solution methods of the 1D SchrÃ¶dinger equation, will be presented.
The importance of quantummechanics in todays life ...

Quantum Mechanics: Stationary Perturbation Theory
10 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck
Stationary perturbation theory is concerned with finding the changes in the discrete energy levels and the changes in the corresponding energy eigenfunctions of a system, when the Hamiltonian of a system is changed by a small amount. In this section we provide reading material regarding stationary perturbation theory, slides and homework assignments.
Reading Material: Stationary Perturbation Theory
Reading Material: Stationary Perturbation Theory Examples and Stark Effect
Slides: ...

Quantum Mechanics: WKB Approximation
09 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck
In physics, the WKB (Wentzel–Kramers–Brillouin) approximation, also known as WKBJ (Wentzel–Kramers–Brillouin–Jeffreys) approximation, is the most familiar example of a semiclassical calculation in quantum mechanics in which the wavefunction is recast as an exponential function, semiclassically expanded, and then either the amplitude or the phase is taken to be slowly changing.
This method is named after physicists Wentzel, Kramers, and Brillouin, who all developed it in 1926. In ...

Solar Cells Operation and Modeling
19 Jul 2010  Teaching Materials  Contributor(s): Dragica Vasileska, Gerhard Klimeck
This set of slides decribes the basic principles of operation of various generations on solar cells with emphasis to single crystalline solar cells. Next, semiconductor equations that describe the operation of a solar cell under simplified conditions is given. Finally, modeling of single junction solar cells is described. Modeling of solar cells with Silvaco simulation software is also outlined.
NSF

Crystal Directions and Miller Indices
08 Jun 2010  Teaching Materials  Contributor(s): David K. Ferry, Dragica Vasileska, Gerhard Klimeck
Miller indices are a notation system in crystallography for planes and directions in crystal lattices. In particular, a family of lattice planes is determined by three integers, l, m, and n, the Miller indices. They are written (lmn) and denote planes orthogonal to a direction (l,m,n) in the basis of the reciprocal lattice vectors.

Smith Chart Examples
04 Aug 2011  Teaching Materials  Contributor(s): Dragica Vasileska, Gerhard Klimeck
Smith charts are used in RF applications to represent Sparameters and reflection coefficients of a twoport network. Examples are also given on calculation of the Sparameters for MEMT Structures using Silvaco ATLAS BLAZE module. Matching network construction is also illustrated.

Quantum Mechanics: Time Independent Schrodinger Wave Equation
07 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck
In physics, especially quantum mechanics, the Schrödinger equation is an equation that describes how the quantum state of a physical system changes in time. It is as central to quantum mechanics as Newton's laws are to classical mechanics.
In the standard interpretation of quantum mechanics, the quantum state, also called a wavefunction or state vector, is the most complete description that can be given to a physical system. Solutions to Schrödinger's equation describe atomic and subatomic ...

ECE 606 Solid State Devices
10 Oct 2012  Courses  Contributor(s): Gerhard Klimeck

Quantum Dot Wave Function (Quantum Dot Lab)
02 Feb 2011  Animations  Contributor(s): Gerhard Klimeck, David S. Ebert, Wei Qiao
Electron density of an artificial atom. The animation sequence shows various electronic states in an Indium Arsenide (InAs)/Gallium Arsenide (GaAs) selfassembled quantum dot.

PN Junction Lab
12 Sep 2005  Tools  Contributor(s): Dragica Vasileska, Matteo Mannino, Michael McLennan, Xufeng Wang, Gerhard Klimeck, Saumitra Raj Mehrotra, Benjamin P Haley
This tool enables users to explore and teach the basic concepts of PN junction devices.

Nanoelectronic Modeling: From Quantum Mechanics and Atoms to Realistic Devices
25 Jan 2010  Courses  Contributor(s): Gerhard Klimeck
The goal of this series of lectures is to explain the critical concepts in the understanding of the stateoftheart modeling of nanoelectronic devices such as resonant tunneling diodes, quantum wells, quantum dots, nanowires, and ultrascaled transistors. Three fundamental concepts critical to the understanding of nanoelectronic devices will be explored: 1) open systems vs. closed systems, 2) nonequilibrium systems vs. closetoequilibrium systems, and 3) atomistic material representation ...

Slides: Zeeman Splitting
10 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF

Crystal Viewer Tool
22 Dec 2007  Tools  Contributor(s): Yuanchen Chu, Daniel F Mejia, James Fonseca, Michael Povolotskyi, Gerhard Klimeck
Visualize different crystal lattices and planes

Quantum Mechanics: Postulates
07 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck
A physical system is generally described by three basic ingredients: states; observables; and dynamics (or law of time evolution) or, more generally, a group of physical symmetries. A classical description can be given in a fairly direct way by a phase space model of mechanics: states are points in a symplectic phase space, observables are realvalued functions on it, time evolution is given by a oneparameter group of symplectic transformations of the phase space, and physical symmetries are ...

Quantum Dots
21 Jul 2005  Online Presentations  Contributor(s): Gerhard Klimeck
Quantum Dots are manmade artificial atoms that confine electrons to a small space. As such, they have atomiclike behavior and enable the study of quantum mechanical effects on a length scale that is around 100 times larger than the pure atomic scale. Quantum dots offer application opportunities in optical sensors, lasers, and advanced electronic devices for memory and logic. This seminar starts with an overview of wavelike and particlelike properties that underly the study of quantum mechanics.

Quantum Mechanics: Landauer's Formula
08 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck
When a metallic nanojunction between two macroscopic electrodes is connected to a battery, electrical current flows across it. The battery provides, and maintains, the charge imbalance between the electrode surfaces needed to sustain steadystate conduction in the junction. This static nonequilibrium problem is usually described according to the Landauer picture. In this picture, the junction is connected to a pair of defectfree metallic leads, each of which is connected to its own distant ...

ABACUS  Assembly of Basic Applications for Coordinated Understanding of Semiconductors
16 Jul 2008  Tools  Contributor(s): Xufeng Wang, Dragica Vasileska, Gerhard Klimeck
Onestopshop for teaching semiconductor device education

Band Structure Lab
19 May 2006  Tools  Contributor(s): Samik Mukherjee, Kai Miao, Abhijeet Paul, Neophytos Neophytou, Raseong Kim, Junzhe Geng, Michael Povolotskyi, Tillmann Christoph Kubis, Arvind Ajoy, Bozidar Novakovic, James Fonseca, Hesameddin Ilatikhameneh, Sebastian Steiger, Michael McLennan, Mark Lundstrom, Gerhard Klimeck
Computes the electronic and phonon structure of various materials in the spatial configuration of bulk , quantum wells, and wires

Quantum Mechanics: Harmonic Oscillator
09 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck
The quantum harmonic oscillator is the quantum mechanical analogue of the classical harmonic oscillator. It is one of the most important model systems in quantum mechanics because an arbitrary potential can be approximated as a harmonic potential at the vicinity of a stable equilibrium point. Furthermore, it is one of the few quantum mechanical systems for which a simple exact solution is known.
The energy spectrum of a harmonic oscillator is noteworthy for three reasons. Firstly, the energies ...

MOSFet
30 Mar 2006  Tools  Contributor(s): Shaikh S. Ahmed, Saumitra Raj Mehrotra, SungGeun Kim, Matteo Mannino, Gerhard Klimeck, Dragica Vasileska, Xufeng Wang, Himadri Pal, Gloria Wahyu Budiman
Simulates the currentvoltage characteristics for bulk, SOI, and doublegate Field Effect Transistors (FETs)

Quantum Dot Lab
12 Nov 2005  Tools  Contributor(s): Prasad Sarangapani, James Fonseca, Daniel F Mejia, James Charles, Woody Gilbertson, Tarek Ahmed Ameen, Hesameddin Ilatikhameneh, Andrew Roché, Lars Bjaalie, Sebastian Steiger, David Ebert, Matteo Mannino, HongHyun Park, Tillmann Christoph Kubis, Michael Povolotskyi, Michael McLennan, Gerhard Klimeck
Compute the eigenstates of a particle in a box of various shapes including domes, pyramids and multilayer structures.

NEMO5 Tutorials (2012 Summer School)
19 Jul 2012  Courses  Contributor(s): James Fonseca, Tillmann Christoph Kubis, Michael Povolotskyi, Jean Michel D Sellier, Parijat Sengupta, Junzhe Geng, Mehdi Salmani Jelodar, Seung Hyun Park, Gerhard Klimeck

MOSCap
06 Apr 2006  Tools  Contributor(s): Akira Matsudaira, Saumitra Raj Mehrotra, Shaikh S. Ahmed, Gerhard Klimeck, Dragica Vasileska
Capacitance of a MOS device

CNTbands
14 Dec 2006  Tools  Contributor(s): Gyungseon Seol, Youngki Yoon, James K Fodor, Jing Guo, Akira Matsudaira, Diego Kienle, Gengchiau Liang, Gerhard Klimeck, Mark Lundstrom, Ahmed Ibrahim Saeed
This tool simulates Ek and DOS of CNTs and graphene nanoribbons.