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Piezotronics in 2D Piezoelectric Semiconductors
Online Presentations | 01 Apr 2016 | Contributor(s):: Wenzhuo Wu
Monolayer MoS2 and other TMDCs have been theoretically predicted to exhibit piezoelectricity due to the strain induced lattice distortion and associated ion charge polarization, suggesting possible applications of these 2D nanomaterials in nano-scale electromechanical devices that take advantage...
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Modeling Quantum Acceleration (Multi-Band Drift) of Bloch Waves in Nanowires
Online Presentations | 24 Mar 2016 | Contributor(s):: Raghuraj Hathwar, marco saraniti, Stephen M. Goodnick
IWCE 2015 presentation. Abstract and more information to be added at a later date.
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Molecular Transistors
Online Presentations | 16 Mar 2016 | Contributor(s):: Mark A. Reed
Here we report the observation of such a solid-state molecular device, in which transport current is directly modulated by an external gate voltage. We have realized a molecular transistor made from the prototype molecular junction, benzene dithiol, and have used a combination of spectroscopies...
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On the Validity of the Harmonic Potential Energy Surface Approximation for Nonradiative Multiphonon Charge Transitions in Oxide Defects
Online Presentations | 09 Mar 2016 | Contributor(s):: Yannick Wimmer, Wolfgang Goes
IWCE Presentation. Hole trapping in oxide defects in the gate insulator of MOSFET transistors has been linked to a wide range of phenomena like random telegraph noise, 1/f noise, bias temperature instability (BTI), stress-induced leakage current and hot carrier degradation [1–5]....
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Adventures with Oxide Interfaces: Electronics, Magnetism, Memory, Energy and Biology
Online Presentations | 25 Feb 2016 | Contributor(s):: T. Venky Venkatesan
In this talk I share a personal close up view of the evolution of this field and where I see it going. I will cover polar/non-polar oxide interface conductivity, defect induced magnetism, FE tunnel junctions and some recent work on bio-oxide interfaces.
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nanoHUB Used in Research: A One Developer/User View
Online Presentations | 18 Feb 2016 | 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. ...
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Progress Toward Wafer-Scale Thermionic Energy Conversion
Online Presentations | 11 Feb 2016 | Contributor(s):: Roger T. Howe
I will provide an update on recent progress at Stanford on achieving higher efficiency, wafer-scale thermionic converters – particularly, in achieving very high thermal isolation between the cathode and the anode and in new anodes with work functions less than 1 eV.
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Memory-Efficient Particle Annihilation Algorithm for Wigner Monte Carlo Simulations
Online Presentations | 10 Feb 2016 | Contributor(s):: Paul Ellinghaus
IWCE 2015 presentation. The Wigner Monte Carlo solver, using the signed-particle method, is based on the generation and annihilation of numerical particles. The memory demands of the annihilation algorithm can become exorbitant, if a high spatial resolution is used, because the entire discretized...
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Ultra-Thin Silicon Membranes and Nanowires as Nanophononic and Thermoelectric Devices
Online Presentations | 10 Feb 2016 | Contributor(s):: Davide Donadio
IWCE 2015 presentation. Engineering silicon at the nanoscale paves the way to new applications of this cheap, abundant, and technologically and environmentally friendly material. Transistors in nanoelectronics have reached the 10 nm size limit, implying very high density but also critical issues...
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Progress on Quantum Transport Simulation Using Empirical Pseudopotentials
Online Presentations | 10 Feb 2016 | Contributor(s):: Jingtian Fang, William Gerard Hubert Vandenberghe, Massimo V Fischetti
IWCE 2015 presentation. After performing one-dimensional simulation of electron transport in narrow quantum wires without gate control in (Fang et al., 2014) and (Fu and Fischetti, 2013) using the open boundary-conditions full-band plane-wave transport formalism derived in (Fu, 2013), we now...
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Wigner Function Approach to Quantum Transport in QCLs
Online Presentations | 10 Feb 2016 | Contributor(s):: Olafur Jonasson, Irena Knezevic
IWCE 2015 presentation. Abstract and more information to be added at a later date.
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IWCE 2015: Openning Remarks
Online Presentations | 10 Feb 2016 | Contributor(s):: Gerhard Klimeck
IWCE 2015 presentation. Welcome and opening remarks for the 18th International Workshop on Computational Electronics.
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Indiana: A State that Works - An Overview of Public-Private Partnerships related to Nanoelectronics, Materials, Energy Storage, and Manufacturing
Online Presentations | 10 Feb 2016 | Contributor(s):: Ian Steff
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Multiscale Modeling of Graphene-Metal Contacts
Online Presentations | 01 Feb 2016 | Contributor(s):: T. Cusati, Gianluca Fiori, A. Fortunelli, Giuseppe Iannaccone
IWCE 2015 presentation. The quality of contacts between metals and two- dimensional materials is a critical aspect for the performance of transistors based on two-dimensional materials. In this talk we focus on an approach to multiscale modeling of graphene- metal contacts, considering both...
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Thermal Conductivity of III-V Semiconductor Superlattices
Online Presentations | 25 Jan 2016 | Contributor(s):: Song Mei, Zlatan Aksamija, Irena Knezevic
IWCE 2015 presentation. An InGaAs/InAlAs superlattice (SL) on an InP substrate is the mainstream material system for mid- IR quantum cascade lasers (QCL). The thermal conductivity tensor of SLs is critical for energy-efficient performance of QCLs; understanding the relative importance of...
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Study of the Interface Roughness Models using 3D Finite Element Schrödinger Equation Corrected Monte Carlo Simulator on Nanoscaled FinFET
Online Presentations | 25 Jan 2016 | Contributor(s):: Daniel Nagy, Muhammad Ali A. Elmessary, Manuel Aldegunde, Karol Kalna
IWCE 2015 presentation. Interface roughness scattering (IRS) is one of the key limiting scattering mechanism for both planar and non-planar CMOS devices. To predict the performance of future scaled devices and new structures the quantum mechanical confinement based IRS models are essential....
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Calculation of phonon transmission in Si/PtSi heterostructures
Online Presentations | 25 Jan 2016 | Contributor(s):: Jung Hyun Oh, Mincheol Shin
In this work we examine the suppression of phonon transport in another example, Si and SiPt heterostructures (3D). This heterostrucure is believed to have the benefit that the electrical conductance can be kept high while the phonon propagation is suppressed due to the large acoustic impedance...
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Variational Formulation of Stable Discrete k · p Models
Online Presentations | 25 Jan 2016 | Contributor(s):: William R Frensley
IWCE 2015 presentation. the longstanding problem of spurious states in k·: ; p models of semiconductor nanostructures has been shown to be an artifact of the use of the centereddifference approximation to the gradient, and it has been shown that stable models may be constructed on the...
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nanoHUB - Educational Tour de Force
Online Presentations | 14 Jan 2016 | Contributor(s):: David K. Ferry
nanoHUB was originally created to bring together the computational electronics world as a place where programs and results could be efficiently shared. For that purpose, it has matured and grown to where it is a major force in the area. But, it can also be a great tool for education, an...
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Screening Effect on Electric Field Produced by Spontaneous Polarization in ZnO Quantum Dot in Electrolyte
Online Presentations | 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.