Particle-Based Device Simulators Description
28 Apr 2008 | Online Presentations | Contributor(s): Dragica Vasileska, Shaikh S. Ahmed, Gerhard Klimeck
In this presentation we give an overview of partcle-based device simulations with focus on implementation details.
Examples for QuaMC 2D particle-based device Simulator Tool
10 May 2008 | Online Presentations | Contributor(s): Dragica Vasileska, Shaikh S. Ahmed, Gerhard Klimeck
We provide three examples that demonstrate the full capabilities of QuaMC 2D for alternative device technologies.
Why QuaMC 2D and Particle-Based Device Simulators?
02 May 2008 | Online Presentations | Contributor(s): Dragica Vasileska, Shaikh S. Ahmed, Gerhard Klimeck
We describe the need for particle-based device simulators when modeling nanoscale devices.
Modeling Coulomb Effects in Nanoscale Devices
26 Apr 2008 | Online Presentations | Contributor(s): Dragica Vasileska, Shaikh S. Ahmed, David K. Ferry
We describe the development of the modeling efforts focused towards proper description of the threshold voltage fluctuations due to the discrete impurity effects (different number and different distribution of the impurities from device to device on the same chip).NSF, ONRW. J. Gross, D. Vasileska and D. K. Ferry, "A Novel Approach for Introducing the Electron-Electron and Electron-Impurity Interactions in Particle-Based Simulations," IEEE Electron Device Lett. 20, No. 9, pp.463-465 ...
GaN/InGaN/GaN Disk-in-Wire Light Emitters: Polar vs. Nonpolar Orientations
25 Nov 2015 | Online Presentations | Contributor(s): Rezaul Karim Nishat, S. Alqahtani, Ye Wu, Vinay Uday Chimalgi, Shaikh S. Ahmed
IWCE 2015 presentation. in this paper, we computationally evaluate and compare the performance of recently reported in0.75n/gan disk-in-wire light emitting diodes (led) grown in the polar (c-plane) and nonpolar (m-plane) crystallographic orientations in terms of built-in fields, electronic bandstructure and interband optical transition rates. the microscopically determined transition parameters were then incorporated into a tcad led simulator to obtain the device terminal...
nanoHUB@SIU: Pedagogy and Beyond
22 Jan 2016 | Online Presentations | Contributor(s): Shaikh S. Ahmed
As a postdoctoral researcher at NCN, during the years 2005-7, in addition to usual research activities, I was tasked with working closely with the nanoHUB Team to augment a few pre-existing quantum device simulators, create rappturized user interfaces, and run end-to-end simulations for scientific validation. These routine yet tedious pieces of work consumed quite a bit of my time and often I was dubious about the outcomes. However, these initial doubts of mine began to fade out after I...