33 citations · 33 across the 4 of their papers we have counts for
5 papers
Nonlinear Polarization and Efficiency Droop in Hexagonal InGaN/GaN Disk-in-Wire LEDs
Vinay Uday Chimalgi, Md Rezaul Karim Nishat, Shaikh Shahid Ahmed
Recent studies suggest that piezoelectric polarization can play an important role in determining the electronic and optical properties of nanoscale nitride heterostructures. Among…
Quantitative Excited State Spectroscopy of a Single InGaAs Quantum Dot Molecule through Multi-million Atom Electronic Structure Calculations
Muhammad Usman, Yui-Hong Matthias Tan, Hoon Ryu +4
Atomistic electronic structure calculations are performed to study the coherent inter-dot couplings of the electronic states in a single InGaAs quantum dot molecule. The experiment…
Influence of Internal Fields on the Electronic Structure in Self-Assembled InAs/GaAs Quantum Dots
Sharnali Islam, Sasi Sundaresan, Shaikh Ahmed
Built-in electrostatic fields in Zincblende quantum dots originate mainly from - (1) the fundamental crystal atomicity and the interfaces between two dissimilar materials, (2) the…
On the Self-Consistent Event Biasing Schemes for Monte Carlo Simulations of Nanoscale MOSFETs
Sharnali Islam, Mihail Nedjalkov, Shaikh Ahmed
Different techniques of event biasing have been implemented in the particle-based Monte Carlo simulations of a 15nm n-channel MOSFET. The primary goal is to achieve enhancement in…
Multimillion Atom Simulations with NEMO 3-D
Shaikh Ahmed, Neerav Kharche, Rajib Rahman +13
The rapid progress in nanofabrication technologies has led to the emergence of new classes of nanodevices and structures. At the atomic scale of novel nanostructured semiconductors…