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...
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...
Multiscale Modeling of Thermoelectric Cooler
17 Dec 2014 | Tools | Contributor(s): Allison Anne Campbell, Mohammad Zunaidur Rashid, afsana sharmin, Shaikh S. Ahmed
This tool simulates a practical thermoelectric cooler unit with atomistic models
Nanoscale Solid-State Lighting Device Simulator
18 May 2012 | Tools | Contributor(s): Shaikh S. Ahmed, Vinay Uday Chimalgi, Katina Mattingly, krishna kumari Yalavarthi
Simulates the electronic and optical properties of nanoscale solid-state lighting devices in III-N material systems
Quantum Point Contact published
02 Feb 2015 | Tools | Contributor(s): Richard Akis, Shaikh S. Ahmed, Mohammad Zunaidur Rashid, Richard Akis
Simulates the conductance and associated wavefunctions of Quantum Point Contacts.