
ECE 606 Lecture 11: Interface States Recombination/Carrier Transport
10 Oct 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 12: High Field, Mobility, Hall Effect, Diffusion
10 Oct 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 14: pn Junctions
04 Oct 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 10: Shockley, Reed, Hall and other Recombinations
30 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 6: Bandgap, Mass Measurements and FermiDirac Statistics
28 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 7: Intrinsic semiconductors and Concepts of Doping
28 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 9: Recombination Process and Rates
28 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 5: Density of States
28 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 8: Temperature Dependent Carrier Density Concepts of Recombination
28 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 4: Periodic Potentials Solutions of Schrödinger's Equation
14 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 2: Quantum Mechanics
14 Sep 2012  Online Presentations  Contributor(s): Gerhard Klimeck

ECE 606 Lecture 3: Emergence of Bandstructure
31 Aug 2012  Online Presentations  Contributor(s): Gerhard Klimeck
Table of Contents:
00:00 ECE606: Solid State Devices Lecture 3
00:24 Motivation
01:17 Timeindependent Schrodinger Equation
02:22 Timeindependent Schrodinger Equation
04:23 A Simple Differential Equation
05:29 Presentation Outline
05:46 Full Problem Difficult: Toy Problems First
06:07 Case 1: Solution for Particles with E>>U
06:57 Free Particle …
07:57 Full Problem Difficult: Toy Problems First
08:02 Case 2: Bound State Problems
10:53 1D Particle in a Box – A Solution Guess
11:57 1D Particle in a Box – Visualization
13:01 1D Particle in a Box – Normalization to ONE particle
15:02 1D Particle in a Box – The Solution
16:06 1D Particle in a Box – Quantum vs. Macroscopic
17:17 Presentation Outline
17:26 Full Problem Difficult: Toy Problems First
17:33 Five Steps for Closed System Analytical Solution
19:03 Case 2: Boundlevels in Finite Well (steps 1,2)
20:36 Case 2: Boundlevels in Finite Well (steps3)
23:39 Case 2: Boundlevels in Finite Well (step 4)
25:08 Case 2: Boundlevels in Finite Well (steps 4 graphical)
26:18 Case 2: Boundlevels in Finite Well (steps 4 graphical)
26:49 Case 2: Boundlevels in Finite Well (steps 5 wavefunction)
27:12 Step 5: Wavefunctions
27:42 Key Summary of a Finite Quantum Well
29:16 Presentation Outline
29:24 Transmission through a single barrier Scattering Matrix approach
30:17 Tunneling through a single barrier
30:48 Single barrier case
32:38 Generalization to Transfer Matrix Method
33:31 Single barrier case
36:38 Single barrier : Concepts
39:25 Effect of barrier thickness below the barrier
40:29 Single Barrier – Key Summary
41:00 Presentation Outline
41:05 Double Barrier Transmission: Scattering Matrix approach
41:17 Reminder: Single barrier
41:52 Double barrier: Concepts
42:37 Double barrier: Quasibound states
43:23 Effect of barrier height
44:59 Effect of barrier thickness
45:00 Double barrier energy levels Vs Closed system
45:31 Particle in a box
45:44 Double barrier & particle in a box
46:33 Open systems Vs closed systems
47:36 Reason for deviation?
48:30 Double Barrier Structures  Key Summary
49:07 Presentation Outline
49:14 1 Well => 1 Transmission Peak
49:37 2 Wells => 2 Transmission Peaks
50:09 3 Wells => 3 Transmission Peaks
50:19 4 Wells => 4 Transmission Peaks
50:20 5 Wells => 5 Transmission Peaks
50:21 6 Wells => 6 Transmission Peaks
50:24 7 Wells => 7 Transmission Peaks
50:25 8 Wells => 8 Transmission Peaks
50:39 9 Wells => 9 Transmission Peaks
50:40 19 Wells => 19 Transmission Peaks
50:42 29 Wells => 29 Transmission Peaks
50:44 39 Wells => 39 Transmission Peaks
50:45 49 Wells => 49 Transmission Peaks
51:20 N Wells => N Transmission Peaks
52:30 1 Well => 1 Transmission Peak => 1 State
52:37 2 Wells => 2 Transmission Peaks => 2 States
52:39 3 Wells => 3 Transmission Peaks => 3 States
52:39 4 Wells => 4 Transmission Peaks => 4 States
52:40 5 Wells => 5 Transmission Peaks => 5 States
52:40 6 Wells => 6 Transmission Peaks => 6 States
53:05 7 Wells => 7 Transmission Peaks => 7 States
53:05 8 Wells => 8 Transmission Peaks => 8 States
53:06 9 Wells => 9 Transmission Peaks => 9 States
53:06 19 Wells => 19 Transmission Peaks => 19 States
53:09 29 Wells => 29 Transmission Peaks => 29 States
53:09 39 Wells => 39 Transmission Peaks => 39 States
53:11 49 Wells => 49 Transmission Peaks => 49 States
54:05 N Wells => N Transmission Peaks => N States
54:53 N Wells => N States => 1 Band
55:07 N Wells => 2N States => 2 Bands
55:48 N Wells => 2N States => 2 Bands
55:59 X States/Well => X Bands
57:10 X States/Well => X Bands
57:37 Formation of energy bands
57:59 Presentation Outline
58:41 Five Steps for Closed System Analytical Solution
59:10 Open System: Generalization to Transfer Matrix Method
59:36 Presentation Outline
59:39 Numerical solution of Schrodinger Equation
60:09 (1) Define a grid …
60:33 Second Derivative on a Finite Mesh
62:06 (2) Express equation in Finite Difference Form
62:56 (3) Define the matrix …
63:44 (4) Solve the Eigenvalue Problem

ECE 606 Lecture 1: Introduction/Crystal Classification
30 Aug 2012  Online Presentations  Contributor(s): Gerhard Klimeck

NEMO5 Tutorial 6A: Device Simulation  Transport (Double Gate)
18 Jul 2012  Online Presentations  Contributor(s): Mehdi Salmani Jelodar, Seung Hyun Park, Zhengping Jiang, Tillmann Christoph Kubis, Michael Povolotskyi, Gerhard Klimeck
…

NEMO5 Overview Presentation
17 Jul 2012  Online Presentations  Contributor(s): Tillmann Christoph Kubis, Michael Povolotskyi, Jean Michel D Sellier, James Fonseca, Gerhard Klimeck
This presentation gives an overview of the current functionality of NEMO5.

TEDxPurdueU  Gerhard Klimeck  Connect Innovation
15 Jun 2012  Online Presentations  Contributor(s): Gerhard Klimeck
The NCN provides online simulation resources to the Nanotechnology Community at large through its nanoHUB. nanoHUB provides the capability to perform online simulation through a web browser without the installation of any software. nanoHUB served over 10,800 simulation users and over 195,000 users in the year 2011 alone.

Exploring the Impact of nanoHUB.org on Research and Education Users
15 Sep 2011  Online Presentations  Contributor(s): Gerhard Klimeck, George B. Adams III, Krishna P. C. Madhavan, Nathan Travis Denny, Michael Zentner, Swaroop S, Lynn Zentner, Diane Beaudoin, Mehdi Salmani Jelodar
With over 170,000 users in the last 12 months and over 2,300 resources including nearly 200 simulation tools, nanoHUB.org has established itself as the world’s largest Nanotechnology User Facility. Critical attributes for the success of such science gateways are open access, ease of use, utterly dependable operation, and diverse, highquality content. Through nanoHUB.org, these attributes are realized, resulting in significant global knowledge transfer among researchers and from research to education. The impact and success of a science gateway can be measured and evaluated utilizing a variety of usage statistics, usage patterns, and analysis of citation data.

Success Criteria for Establishing a Thriving HUBzero Based Site: A Model for Science 2.0
15 Sep 2011  Online Presentations  Contributor(s): Lynn Zentner, Gerhard Klimeck, Krishna P. C. Madhavan, George B. Adams III
Science gateways utilizing HUBzero technology provide the means for rapid dissemination and use of research results by a global research and education community, extending resources that used to be available to an elite few to a broader and more diverse community. Users may range from educators and their students to the computational research community, experimentalists, and a wide variety of users in related and peripheral fields.

Atomistic Modeling and Simulation Tools for Nanoelectronics and their Deployment on nanoHUB.org  Part 1
21 Jul 2011  Online Presentations  Contributor(s): Gerhard Klimeck

The Promise of Tomorrow: Using nanoHUB.org, how it work and protects IT property
20 Jul 2011  Online Presentations  Contributor(s): Colonel Mason, Gerhard Klimeck
The Promise of Tomorrow: Using the website, www.nanoHUB.org, for online simulations, tutorials, seminars, complete classes in nanotechnology, how it work and protects IT property.

The Promise of Tomorrow: Using nanoHUB.org, for online simulations, tutorials, seminars, and complete classes in nanotechnology
24 Jun 2011  Online Presentations  Contributor(s): Colonel Mason, Gerhard Klimeck
The Promise of Tomorrow: Using the website, www.nanoHUB.org, for online simulations, tutorials, seminars, and complete classes in nanotechnology.

Tutorial 4a: High Bias Quantum Transport in Resonant Tunneling Diodes
29 Mar 2011  Online Presentations  Contributor(s): Gerhard Klimeck
Outline:
 Resonant Tunneling Diodes  NEMO1D: Motivation / History / Key Insights
 Open 1D Systems: Transmission through Double Barrier Structures  Resonant Tunneling
 Introduction to RTDs: Linear Potential Drop
 Introduction to RTDs: Realistic Doping Profiles
 Introduction to RTDs: Relaxation Scattering in the Emitter
 NEMO1D: Full Bandstructure Effects