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Synthesis and Characterization of CdSe Qunatum Dots
Teaching Materials | 11 Jan 2017 | Contributor(s):: Nicholas Blake, NNCI Nano
In this laboratory, students will study how surfactant-based chemistry can be used to synthesize CdSe quantum dots and study how the size of the quantum dots can be controlled by varying reaction time. The laboratory will demonstrate how the color of these quantum dots can be connected to...
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TE/TM polarisation response of InAs/GaAs quantum dot bilayers
Presentation Materials | 22 Oct 2015 | Contributor(s):: Muhammad Usman
Quantum dot bilayers are strong candidates for the design of telecom devices working at 1300 nm wavelength range. Here we analyse - both experimentally and theoretically - their optical and polarisation properties.
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Test for Quantum Dot Lab tool
Teaching Materials | 09 Nov 2010 | Contributor(s):: SungGeun Kim, Saumitra Raj Mehrotra
This test is aimed at self-learning students or instructors who may be engaged in teaching classes related to the quantum dot lab tool.The level of this test should not be difficult for a student who has gone through "the general tutorial to quantum dots,""the introductory tutorial to the quantum...
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The History of Semiconductor Heterostructures Research: From Early Double Heterostructure Concept to Modern Quantum Dot Structures
Online Presentations | 11 Jul 2011 | Contributor(s):: Zhores I. Alferov
It would be very difficult today to imagine solid-state 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...
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Thermoelectric Power Factor Calculator for Nanocrystalline Composites
Tools | 18 Oct 2008 | Contributor(s):: Terence Musho, Greg Walker
Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in a 2D Nanocrystalline Composite Structure using Non-Equilibrium Green's Functions
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Turning Fruit Juice into Graphene Quantum Dots
Teaching Materials | 06 Jan 2020 | Contributor(s):: John Gomm, NNCI Nano
Graphene, a sub-nanometer thick sheet made of carbon, was isolated just over a decade ago (2004), yet swiftly won the Nobel Prize for Geim and Novoselov in 2010 for its properties of high strength, conductivity, and transparency. Students will replicate the procedure used to isolate graphene...
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Tutorial 4b: Introduction to the NEMO3D Tool - Electronic Structure and Transport in 3D
Online Presentations | 29 Mar 2011 | Contributor(s):: Gerhard Klimeck
Electronic Structure and Transport in 3D - Quantum Dots, Nanowires and Ultra-Thin Body Transistors
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Universal Behavior of Strain in Self-assembled Quantum Dots
Downloads | 05 May 2016 | Contributor(s):: Hesameddin Ilatikhameneh, Tarek Ahmed Ameen, Gerhard Klimeck, Rajib Rahman
This resource contains the universal behavior strain files produced by Nemo5. Attached also a Matlab script that can utilize the these compact descriptive files to produce the full strain distribution. Supported QD shapes; Cuboid, Dome, Cone, and Pyramid. Supported material systems;...
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Valley Dependent g-factors in Silicon: Role of Spin-Orbit and Micromagnets
Online Presentations | 13 Dec 2016 | Contributor(s):: Rajib Rahman
In this talk I will show that spin splittings in silicon quantum dots are inherently valley-dependent. Interface disorder, such as monoatomic steps, can strongly affect the intrinsic spin-orbit coupling and can cause device-to-device variations in g-factors. I will also describe the anisotropy of...
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Visualization of and Educational Tool for Quantum Dots
Presentation Materials | 15 Aug 2004 | Contributor(s):: Aaron Christensen, Adrian Rios
Quantum dots (QDs) are confined structures made of metals and semiconductors that are capable of containing free electrons.The ability to visualize these small devices is advantageous in determining probable electron orbitals and in observing information not easily conceived in raw datasets.
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VolQD: Graphics Hardware Accelerated Interactive Visual Analytics of Multi-million Atom Nanoelectronics Simulations
Online Presentations | 13 Dec 2005 | Contributor(s):: Wei Qiao
In this work we present a hardware-accelerated direct volume renderingsystem for visualizing multivariate wave functions in semiconductingquantum dot (QD) simulations. The simulation datacontains the probability density values of multiple electron orbitalsfor up to tens of millions of...
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What Can the TEM Tell You About Your Nanomaterial?
Online Presentations | 26 Feb 2007 | Contributor(s):: Eric Stach
In this tutorial, I will present a brief overview of the ways that transmission electron microscopy can be used to characterize nanoscale materials. This tutorial will emphasize what TEM does well, as well where difficulties arise. In particular, I will discuss in an overview manner how...
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Why quantum dot simulation domain must contain multi-million atoms?
Online Presentations | 11 Jan 2013 | Contributor(s):: Muhammad Usman
The InGaAs quantum dots obtained from the self-assembly growth process are heavily strained. The long-range strain and piezoelectric fields significantly modifies the electronic structure of the quantum dots. This imposes a critical constraint on the minimum size of the simulation domain to study...
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[Illinois] Colloidal Quantum Dots and Plasmonics Particles II
Online Presentations | 21 Apr 2016 | Contributor(s):: Jao van de Lagemaat