Assembly for Nanotechnology Survey Courses
05 Nov 2008 | Tools | Contributor(s): Gerhard Klimeck, Dragica Vasileska
Educational Tools for Classroom and Homework use to introduce nanotechnology concepts
Exercise for MOS Capacitors: CV curves and interface and Oxide Charges
30 Jul 2009 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise is designed to teach the students how the CV curves of an ideal MOS Capacitor change in the presence of oxide or interface charges.
Exercise: PIN Diode
0.0 out of 5 stars
06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
An exercise in the operation of a PIN diode under the conditions of forward and reverse bias.
Bulk Band Structure: a Simulation Exercise
03 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This simulation exercise teaches the students about band structure of indirect and direct bandgap materials, the optical gaps, the concept of the effective mass and the influence of spin-orbit coupling on the valence bandstructure. NSF
Band Structure Lab Exercise
28 Jun 2010 | Teaching Materials | Contributor(s): Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska
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...
Open Systems
30 Jun 2008 | Teaching Materials | Contributor(s): Dragica Vasileska
This tutorial contains introductory material for Quantum Mechanics for Engineers with emphasis on tunneling, open systems and the definitions of transmission and reflection coefficients and their calculation in the case of piece-wise constant potential energy profiles.NSF
Generalized Monte Carlo Presentation
17 Jun 2011 | Teaching Materials | Contributor(s): Dragica Vasileska
This presentation goes along with the Bulk Monte Carlo tool on the nanoHUB that calculates transients and steady-state velocity-field characteristics of arbitrary materials such as Si, Ge, GaAs, GaN, SiC, etc. The tool employs a non-parabolic bandstructure.
Solid State Lightening and LEDs
11 Aug 2011 | Teaching Materials | Contributor(s): Dragica Vasileska
This lecture is part of a Computational optoelectronics class that is taught at ASU by Prof. Vasileska.
PN Diode Exercise: Graded Junction
An exercise in determining the preferred approach to solving the Poisson equation.
Nanoelectronic Modeling Lecture 10: Open 1D Systems - Transmission through & over 1 Barrier
30 Dec 2009 | Online Presentations | Contributor(s): Gerhard Klimeck, Dragica Vasileska, Samarth Agarwal
Tunneling and interference are critical in the understanding of quantum mechanical systems. The 1D time independent Schrödinger equation can be easily solved analytically in a scattering matrix approach for a system of a single potential barrier. The solution is obtained by matching wavefunction...
How Quantum-Mechanical Space-Quantization is Implemented in Schred, Drift-Diffusion (SILVACO ATLAS) and Particle-Based Device Simulators (Quamc2D)
5.0 out of 5 stars
27 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska
This brief presentation outlines how one can implement quantum-mechanical space quantization effects exactly (using Schred) and approximately in drift-diffusion (using SILVACO), as well as particle-based device simulators (using Quamc2D).
MOSCAP - Theoretical Exercises 1
02 Aug 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
Periodic Potentials and Bandstructure: an Exercise
02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise teaches the students that in the case of strong coupling between the neighboring wells in square and Coulomb periodic potential wells electrons start to behave as free electrons and the gaps that open at the Brillouin zone boundaries become smaller and smaller (thus recovering the...
ABACUS: Test for PN Junction Lab
05 Aug 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
The objective of this test is to give an idea to a self-learning students or to instructors in the case this test is used in a classroom the level of understanding of this topic when students have gone through the learning material, worked exercises and have completed the assignments and the...
Alloy Disorder Scattering
11 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska
This set of slides describes Alloy disorder scattering.
Tunneling Through Triangular Barrier: an Exercise for PCPBT
23 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise teaches the users that a very good result can be obtained when the triangular barrier is approximated with 11 segment piece-wise constant potential barrier steps. www.eas.asu.edu/~vasilesk NSF
Verification of the Validity of the MOSFET Tool
10 Oct 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Output characteristics of a bulk MOSFET are computed using MOSFET lab and compared with an analytical model based on Bulk-Charge theory. Parasitic resistance is used as a fitting parameter in the analytical model. MATLAB script used for verification is also available for download.
Slides: WKB Approximation Applications
09 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF
Exercise: Crystal Lattices
29 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
This exercise helps the student better understand various types of crystal lattices, in particular diamond and zinc-blende and also helps in better understanding of the miller indicies. The results to some of these problems can be easily arrived at by using the crystal viewer...
Nanoelectronic Modeling Lecture 14: Open 1D Systems - Formation of Bandstructure
25 Jan 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Dragica Vasileska
The infinite periodic structure Kroenig Penney model is often used to introduce students to the concept of bandstructure formation. It is analytically solvable for linear potentials and shows critical elements of bandstructure formation such as core bands and different effective masses in...
Harmonic Oscillator: an Exercise
Exercise: Density of States Function Calculation
These exercises teach the students how to derive the DOS function for a 2D and a 1D system and to calculate the energy-dependent effective mass for non-parabolic bands.www.eas.asu.edu/~vasileskNSF
Computational Electronics HW - Linearization of Poisson Equation
11 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck
Quantum and Thermal Effects in Nanoscale Devices
4.5 out of 5 stars
18 Sep 2008 | Online Presentations | Contributor(s): Dragica Vasileska
To investigate lattice heating within a Monte Carlo device simulation framework, we simultaneously solve the Boltzmann transport equation for the electrons, the 2D Poisson equation to get the self-consistent fields and the hydrodynamic equations for acoustic and optical phonons. The phonon...
BJT - Simulation Exercise
This simulation exercise teaches the students the operation of BJT transistor, what is current gain and how one extracts current gain from the Gummel plot. It also provides output device characteristics from which students have to extract the Early voltage. Furthermore, it makes the students...