
Valley Dependent gfactors in Silicon: Role of SpinOrbit and Micromagnets
13 Dec 2016   Contributor(s):: Rajib Rahman
In this talk I will show that spin splittings in silicon quantum dots are inherently valleydependent. Interface disorder, such as monoatomic steps, can strongly affect the intrinsic spinorbit coupling and can cause devicetodevice variations in gfactors. I will also describe the anisotropy of...

E304 L8.1.3: Nanophotonics  Quantum Dots
15 Jun 2016 

Screening Effect on Electric Field Produced by Spontaneous Polarization in ZnO Quantum Dot in Electrolyte
05 Jan 2016   Contributor(s):: Xinia Meshik, Min S. Choi, Mitra Dutta, Michael Stroscio
IWCE 2015 presentation. in this paper, the calculation of the strength of the electrostatic field produced by zno quantum dots due to the spontaneous polarization in a physiological electrolyte and its application on retinal horizontal cells are presented.

Quantum Dots
07 May 2015   Contributor(s):: Sebastien Maeder, NACK Network
OutlineIntroductionQuantum ConfinementQD SynthesisColloidal MethodsEpitaxial GrowthApplicationsBiologicalLight EmittersAdditionalApplications

Excited State Spectroscopy of a Quantum Dot Molecule
11 Jan 2013   Contributor(s):: Muhammad Usman
Atomistic electronic structure calculations are performed to study the coherent interdot couplings of the electronic states in a single InGaAs quantum dot molecule. The experimentally observed excitonic spectrum by Krenner et al (Phys. Rev. Lett. 94 057402, 2005) is quantitatively reproduced,...

NEMO5 Tutorial 5A: Devi ce Simulation  Quantum Dots
17 Jul 2012   Contributor(s):: Jean Michel D Sellier
This presentation introduces the capabilities of NEMO5 to simulate quantum dots.

Quantum Dot based Photonic Devices
01 Apr 2012   Contributor(s):: Muhammad Usman
Deployment of nanometersized semiconductor quantum dots (QDs) in the active region ofphotonic devices such as lasers, semiconductor optical amplifiers (SOA's), photodetectors etc.for the next generation communication systems offers unique characteristics such astemperatureinsensitivity, high...

Polarization Response of Multilayer InAs Quantum Dot Stacks
25 Oct 2011   Contributor(s):: Muhammad Usman
Recent experimental measurements, without any theoretical guidance, showed that isotropic polarization response can be achieved by increasing the number of QD layers in a QD stack. In this work, we analyse the polarization response of multilayer quantum dot stacks containing up to nine quantum...

BME 695L Lecture 5: Nanomaterials for Core Design
03 Oct 2011   Contributor(s):: James Leary
See references below for related reading.5.1 Introduction5.1.1 core building blocks5.1.2 functional cores5.1.3 functionalizing the core surface5.2 Ferric...

The History of Semiconductor Heterostructures Research: From Early Double Heterostructure Concept to Modern Quantum Dot Structures
11 Jul 2011   Contributor(s):: Zhores I. Alferov
It would be very difficult today to imagine solidstate physics without semiconductor heterostructures. Semiconductor heterostructures and especially double heterostructures, including quantum wells, quantum wires and quantum dots, currently comprise the object of investigation of two thirds of...

Illinois ECE598XL Semiconductor Nanotechnology  3  Quantum Dots: Formation
27 Jun 2011   Contributor(s):: Xiuling Li

Tutorial 4b: Introduction to the NEMO3D Tool  Electronic Structure and Transport in 3D
29 Mar 2011   Contributor(s):: Gerhard Klimeck
Electronic Structure and Transport in 3D  Quantum Dots, Nanowires and UltraThin Body Transistors

Atomistic Modeling and Simulation Tools for Nanoelectronics and their Deployment on nanoHUB.org
16 Dec 2010   Contributor(s):: Gerhard Klimeck
At the nanometer scale the concepts of device and material meet and a new device is a new material and vice versa. While atomistic device representations are novel to device physicists, the semiconductor materials modeling community usually treats infinitely periodic structures. Two electronic...

Nanoelectronic Modeling Lecture 34: Alloy Disorder in Quantum Dots
05 Aug 2010   Contributor(s):: Gerhard Klimeck, Timothy Boykin, Chris Bowen
This presentation discusses the consequences of Alloy Disorder in strained InGaAs Quantum Dots Reminder of the origin of bandstructure and bandstructure engineeringWhat happens when there is disorder?Concept of disorder in the local bandstructureConfiguration noise, concentration noise,...

Nanoelectronic Modeling Lecture 32: Strain Layer Design through Quantum Dot TCAD
04 Aug 2010   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. Different alloy concentrations of the strain layer tune the optical emission and absorption wavelength...

Nanoelectronic Modeling Lecture 31a: LongRange Strain in InGaAs Quantum Dots
04 Aug 2010   Contributor(s):: Gerhard Klimeck
This presentation demonstrates the importance of longrange strain in quantum dotsNumerical analysis of the importance of the buffer around the central quantum dot  local band edges – vertical and horizontal extension of the bufferControlled overgrowth can tune the electron energies in the...

Nanoelectronic Modeling Lecture 29: Introduction to the NEMO3D Tool
04 Aug 2010   Contributor(s):: Gerhard Klimeck
This presentation provides a very high level software overview of NEMO3D. The items discussed are:Modeling Agenda and MotivationTightBinding Motivation and basic formula expressionsTight binding representation of strainSoftware structureNEMO3D algorithm flow NEMO3D parallelization scheme –...

Nanoelectronic Modeling Lecture 28: Introduction to Quantum Dots and Modeling Needs/Requirements
20 Jul 2010   Contributor(s):: Gerhard Klimeck
This presentation provides a very high level software overview of NEMO1D.Learning Objectives:This lecture provides a very high level overview of quantum dots. The main issues and questions that are addressed are:Length scale of quantum dotsDefinition of a quantum dotQuantum dot examples and...

Nanoelectronic Modeling: Exercises 13  Barrier Structures, RTDs, and Quantum Dots
27 Jan 2010   Contributor(s):: Gerhard Klimeck
Exercises:Barrier StructuresUses: PieceWise Constant Potential Barrier ToolResonant Tunneling DiodesUses: Resonant Tunneling Diode Simulation with NEGF • Hartree calculation • Thomas Fermi potentialQuantum DotsUses: Quantum Dot Lab • pyramidal dot

Nanobiotechnology – a different perspective
22 Jul 2008   Contributor(s):: Murali Sastry
The study of the synthesis, exotic properties, assembly/packaging and potential commercial application of nanomaterials is an extremely important topic of research that is expected to have farreaching global impact. The focus of my talk will be on an emerging branch of nanotechnology that...