Exercise: PIN Diode

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.

https://nanohub.org/resources/4896

PN Diode Exercise: Graded Junction

06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

An exercise in determining the preferred approach to solving the Poisson equation.

https://nanohub.org/resources/4898

Schred: Exercise 1

06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This exercise illustrates basic SCHRED capabilities for modeling MOS capacitors and also illustrates how the bound states distribution in energy changes with doping. The average distance of the …

https://nanohub.org/resources/4900

SCHRED: Exercise 2

06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

In this exercise students examine the doping dependence of the threshold voltage shift in MOS capacitors due to the quantum-mechanical charge description in the channel.www.eas.asu.edu/~vasileskNSF

https://nanohub.org/resources/4902

Schred: Exercise 3

06 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This exercise examines the degradation of the total gate capacitance with technology generation due to Maxwell-Boltzmann instead of Fermi-Dirac statistics, quantum-mechanical charge description and …

https://nanohub.org/resources/4904

MOSFET Exercise

07 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

With this exercise students are familiarized with the punchthrough effect, the series resistance at the source and drain region and the importance of impact ionization at high gate and drain bias …

https://nanohub.org/resources/4906

Periodic Potentials and the Kronig-Penney Model

01 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska

This material describes the derivation of the Kronig-Penney model for delta-function periodic potentials.

https://nanohub.org/resources/4847

Quantum-Mechanical Reflections in Nanodevices: an Exercise

02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This exercise points out to the fact that quantum-mechanical reflections are going to be significant in nanoscale devices and proper modeling of these device structures must take into consideration …

https://nanohub.org/resources/4849

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 …

https://nanohub.org/resources/4851

From 1 well to 2 wells to 5 wells to periodic potentials: an Exercise

02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This exercise demonstrates that the interaction between the wells lifts the degeneracy of the quasi-bound states and if in the limit we have infinite periodic potential it leads to formation of …

https://nanohub.org/resources/4853

Exercise: CV curves for MOS capacitors

02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

This exercise demonstrates to the students how the low-frequency CV curves in MOS capacitors change with changing the gate workfunction, the oxide thickness and the dielectric constant. It also …

https://nanohub.org/resources/4855

Quantum-Mechanical Reflections: an Exercise

30 Jun 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

…

https://nanohub.org/resources/4831

Schred Tutorial Version 2.1

23 Jun 2008 | Downloads | Contributor(s): Dragica Vasileska

This Schred tutorial [or User's Manual] is intended to help users of the Schred tool with the Rappture interface. Readers will find various examples for modeling single-gate and dual-gate capacitors …

https://nanohub.org/resources/4796

Quantum Size Effects and the Need for Schred

23 Jun 2008 | Downloads | Contributor(s): Dragica Vasileska

In this paper, we provide a historical overview of the observation of quantum effects in both experimental and theoretical nanoscale devices. This overview puts into perspective the need for …

https://nanohub.org/resources/4794

BJT Lab

06 Feb 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck, Dragica Vasileska, Gloria Wahyu Budiman

This tool simulates a Bipolar Junction Transistor (BJT) using a 2D mesh. Powered by PADRE.

https://nanohub.org/resources/bjt

Drift-Diffusion Lab

22 Jan 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck, Gloria Wahyu Budiman

Simulate single semiconductor characteristics

https://nanohub.org/resources/semi

Periodic Potential Lab

19 Jan 2008 | Tools | Contributor(s): Abhijeet Paul, Junzhe Geng, Gerhard Klimeck

Solve the time independent schrodinger eqn. for arbitrary periodic potentials

https://nanohub.org/resources/kronig_penney

Carrier Statistics Lab

08 Jan 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck

Calculate the electron & hole density in semiconductors

https://nanohub.org/resources/fermi

Crystal Viewer Tool

22 Dec 2007 | Tools | Contributor(s): Saumitra Raj Mehrotra, Michael Povolotskyi, Sebastian Steiger, Tillmann Christoph Kubis, Abhijeet Paul, Xingshu Sun, Victoria Savikhin, Gerhard Klimeck

Visualize different crystal lattices and planes

https://nanohub.org/resources/crystal_viewer

MOS Capacitors: Description and Semiclassical Simulation With PADRE

26 Jun 2006 | Online Presentations | Contributor(s): Dragica Vasileska

Introduction of Quantum-Mechanical Effects in Device Simulation

https://nanohub.org/resources/1596