Homework: WKB Approximation

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

www.eas.asu.edu/~vasileskNSF

https://nanohub.org/resources/4990

Energy Bands as a Function of the Geometry of the n-Well Potential: an Exercise

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

Explores the position and the width of the bands as a function of the 10-barrier potential parameters. NSF

https://nanohub.org/resources/4873

Can we define unique effective masses in Si nanowires?

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

This exercise teaches the users that for small nanostructures the concept of the effective mass becomes vague and in order to properly describe nanostructures one has to take into account the …

https://nanohub.org/resources/4880

Tutorial on Semi-empirical Band Structure Methods

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

This tutorial explains in details the Empirical Pseudopotential Method for the electronic structure calculation, the tight-binding method and the k.p method. For more details on the Empirical …

https://nanohub.org/resources/4882

Exercise: Density of States Function Calculation

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

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

https://nanohub.org/resources/4890

Exercise: Dopants and Semiconductor Statistics

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

This exercise emphasizes the calculation of the position of the Fermi level at T=0K and it also teaches the students about Einstain relation for non-degenerate …

https://nanohub.org/resources/4892

PN Diode Exercise: Series Resistance

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

An exercise in determining the series resistance in a PN diode.

https://nanohub.org/resources/4894

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

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https://nanohub.org/resources/4831