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Diffusion-Reaction Modeling of Cu Migration in CdTe Solar Devices
22 Apr 2016 | Online Presentations | Contributor(s): Da GUO, Tian Fang, Richard Akis, Dragica Vasileska
IWCE 2015 presentation. In this work, we report on development of one-dimensional (1D) finite-difference and two- dimensional (2D) finite-element diffusion-reaction simulators to investigate mechanisms behind Cu- related metastabilities observed in CdTe solar cells . The evolution of CdTe solar cells performance has been studied as a function of stress time in re- sponse to the evolution of associated acceptor and donor states. To achieve such capability, the simu- lators solve...
Multi-Scale Modeling of Self-Heating Effects in Nano-Devices
21 Apr 2016 | Online Presentations | Contributor(s): Suleman Sami Qazi, Akash Anil Laturia, Robin Louis Daugherty, Katerina Raleva, Dragica Vasileska
IWCE 2015 presentation. This paper discusses a multi-scale device modeling scheme for analyzing self-heating effects in nanoscale silicon devices. A 2D/3D particle-based device simulator is self-consistently coupled to an energy balance solver for the acoustic and optical phonon bath. This simulator is used to analyze the hot-spot temperature and location in various SOI devices, dual gate structures and nanowire transistors. This device simulator has been coupled to a SILVACO simulation tool...
nanoHUB Used in Research: A One Developer/User View
18 Feb 2016 | Online Presentations | Contributor(s): Dragica Vasileska
In this presentation I will give overview of selected nanoHUB tools and their potential for performing state- of-the-art research. The tools selected for this purpose include SCHRED, QuaMC2D, and OMEN nanowire/ NEMO5. ...
A Multi-Scale Modeling Approach to Study Transport in Silicon Heterojunction Solar Cells
03 Nov 2015 | Online Presentations | Contributor(s): Pradyumna Muralidharan, Dragica Vasileska, Stephen M. Goodnick, Stuart Bowden
Cu in CdTe Lab
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22 Oct 2014 | Tools | Contributor(s): Da GUO, Dragica Vasileska
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Bulk Monte Carlo Learning Materials
Group Wiki Page:
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By completing the Bulk Monte Carlo Lab tool exercises and tests, users will be able to: a) understand the way the Boltzmann Transport Equation (BTE) is solved using the Monte Carlo method, b) the concept of drift velocity and average carrier energy, c)...
SCHRED Learning Materials
By completing the Schred, users will be able to: a) understand the concept of bound states in a MOS capacitor structure, b) the meaning of the eigenvalues and the eigenvectors, and c) the form of the eigenvalues and the eigenvectors for triangular confinement.
The specific objectives of the...
Resonant Tunneling Diode Learning Materials
By completing the Bound States Calculation Lab, users will be able to: a) understand the concept of bound states, b) the meaning of the eigenvalues and the eigenvectors, and c) the form of the eigenvalues and eigenvectors for rectangular, parabolic and triangular confinement.
Bound States Lab Learning Materials
by Dragica Vasileska and Gerhard Klimeck
MOSFet Learning Materials
By completing the MOSFET Lab in ABACUS - Assembly of Basic Applications for Coordinated Understanding of Semiconductors, you will be able to:
a) understand the operation of MOSFET devices,
b) understand the limitations of the gradual channel approximation, and
c) understand the limitations of...