Self-Assembled Quantum Dot Wave Structure

31 Jan 2011 | Animations | Contributor(s): Gerhard Klimeck, Insoo Woo, Muhammad Usman, David S. Ebert

A 20nm wide and 5nm high dome shaped InAs quantum dot grown on GaAs and embedded in InAlAs is visualized.

https://nanohub.org/resources/10689

Electron Density in a Nanowire

30 Jan 2011 | Animations | Contributor(s): Gerhard Klimeck, Saumitra Raj Mehrotra

Electron Density in a circular Silicon nanowire transistor.

https://nanohub.org/resources/10666

Tunneling in an Nanometer-Scaled Transistor

25 Jan 2011 | Animations | Contributor(s): Gerhard Klimeck, Mathieu Luisier, Neerav Kharche, George A. Howlett, Insoo Woo, David Ebert

Electrons tunneling through the gate of an ultra-scaled transistor.

https://nanohub.org/resources/10537

2010 NCN@Purdue Summer School: Electronics from the Bottom Up

18 Jan 2011 | Workshops

Electronics from the Bottom Up seeks to bring a new perspective to electronic devices – one that is designed to help realize the opportunities that nanotechnology presents.

https://nanohub.org/resources/8878

2010 Nano-Biophotonics Summer School @ UIUC Lecture 5 - Biomedicine - A tour of the Cell

25 Sep 2010 | Online Presentations | Contributor(s): Marina Marjanovic

Edited and Uploaded by Omar Sobh, University of Illinois at Urbana-Champaign

https://nanohub.org/resources/9747

Nanoelectronic Modeling Lecture 41: Full-Band and Atomistic Simulation of Realistic 40nm InAs HEMT

05 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Neerav Kharche, Neophytos Neophytou, Mathieu Luisier

This presentation demonstrates the OMEN capabilities to perform a multi-scale simulation of advanced InAs-based high mobility transistors. Learning Objectives: Quantum Transport Simulator …

https://nanohub.org/resources/9285

Nanoelectronic Modeling Lecture 40: Performance Limitations of Graphene Nanoribbon Tunneling FETS due to Line Edge Roughness

05 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Mathieu Luisier

This presentation the effects of line edge roughness on graphene nano ribbon (GNR) transitors.. Learning Objectives: GNR TFET Simulation pz Tight-Binding Orbital Model 3D …

https://nanohub.org/resources/9283

Nanoelectronic Modeling Lecture 39: OMEN: Band-to-Band-Tunneling Transistors

05 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Mathieu Luisier

This presentation discusses the motivation for band-to-band tunneling transistors to lower the power requirements of the next generation transistors. The capabilities of OMEN to model such complex …

https://nanohub.org/resources/9282

Nanoelectronic Modeling Lecture 33: Alloy Disorder in Bulk

04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Timothy Boykin, Chris Bowen

This presentation discusses disorder in AlGaAs unstrained systems in bulk. Bandstructure of an ideal simple unit cell What happens when there is disorder? Concept of a supercell …

https://nanohub.org/resources/9278

Nanoelectronic Modeling Lecture 32: Strain Layer Design through Quantum Dot TCAD

04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Muhammad Usman

This presentation demonstrates the utilization of NEMO3D to understand complex experimental data of embedded InAs quantum dots that are selectively overgrown with a strain reducing InGaAs layer. …

https://nanohub.org/resources/9272

Nanoelectronic Modeling Lecture 31a: Long-Range Strain in InGaAs Quantum Dots

04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

This presentation demonstrates the importance of long-range strain in quantum dots Numerical analysis of the importance of the buffer around the central quantum dot - local band edges – …

https://nanohub.org/resources/9270

Nanoelectronic Modeling Lecture 25a: NEMO1D - Full Bandstructure Effects

07 Jul 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

(quantitative RTD modeling at room temperature)

https://nanohub.org/resources/8594

Computer in Science Engineering: featuring nanoHUB.org

22 Apr 2010 | Publications

The current issue of Computing in Science and Engineering focuses on cyber-enabled nanotechnology, and nanoHUB.org is featured extensively throughout.

https://nanohub.org/resources/8881

Carbon nanotube bandstructure

22 Apr 2010 | Animations | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck

Carbon nanotubes are allotropes of carbon with a cylindrical nanostructure, and can be categorized into single-walled nanotubes (SWNT) and multi-walled nanotubes (MWNT). These cylindrical carbon …

https://nanohub.org/resources/8807

Threshold voltage in a nanowire MOSFET

22 Apr 2010 | Animations | Contributor(s): Saumitra Raj Mehrotra, SungGeun Kim, Gerhard Klimeck

Threshold voltage in a metal oxide semiconductor field-effect transistor (better known as a MOSFET) is usually defined as the gate voltage at which an inversion layer forms at the interface between …

https://nanohub.org/resources/8803

Resonant Tunneling Diode operation

22 Apr 2010 | Animations | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck

A resonant tunneling diode (RTD) is a type of diode with a resonant tunneling structure that allows electrons to tunnel through various resonant states at certain energy levels. RTDs can be …

https://nanohub.org/resources/8799

Nanotechnology Animation Gallery

22 Apr 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck

Animations and visualization are generated with various nanoHUB.org tools to enable insight into nanotechnology and nanoscience. Click on image for detailed description and larger image download. …

https://nanohub.org/resources/8882

Nanoelectronic Modeling Lecture 26: NEMO1D -

09 Mar 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

NEMO1D demonstrated the first industrial strength implementation of NEGF into a simulator that quantitatively simulated resonant tunneling diodes. The development of efficient algorithms that …

https://nanohub.org/resources/8596

Nanoelectronic Modeling Lecture 22: NEMO1D - Motivation, History and Key Insights

07 Feb 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

The primary objective of the NEMO-1D tool was the quantitative modeling of high performance Resonant Tunneling Diodes (RTDs). The software tool was intended for Engineers (concepts, fast turn-around, …

https://nanohub.org/resources/8389

Nanoelectronic Modeling Lecture 03: nanoHUB.org - Online Simulation and More

25 Jan 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

This presentation provides a brief overview of the nanoHUB capabilites, compares it to static web page delivery, highlights its technology basis, and provides a vision for future cyberinfrastructures …

https://nanohub.org/resources/8089