18 citations · 24 across the 8 of their papers we have counts for
14 papers
Atomistic transport modeling, design principles and empirical rules for Low Noise III-V Digital Alloy Avalanche Photodiodes
Sheikh Z. Ahmed, Yaohua Tan, Jiyuan Zheng +2
A series of III-V ternary and quarternary digital alloy avalanche photodiodes (APDs) have recently been seen to exhibit very low excess noise. Using band inversion of an environmen…
Characterization of band offsets in AlInAsSb alloys with varying Al composition
Jiyuan Zheng, Andrew H. Jones, Yaohua Tan +7
The unprecedented wide bandgap tunability (~1 eV) of AlInAsSb latticed-matched to GaSb enables the fabrication of photodetectors over a wide range from near…
Full band Monte Carlo simulation of AlInAsSb digital alloys
Jiyuan Zheng, Sheikh Z. Ahmed, Yuan Yuan +7
Avalanche photodiodes fabricated from AlInAsSb grown as a digital alloy exhibit low excess noise. In this paper, we investigate the band structure-related mechanisms that influence…
A Physics Based Multiscale Compact Model of p-i-n Avalanche Photodiodes
Sheikh Z. Ahmed, Samiran Ganguly, Yuan Yuan +4
III-V material based digital alloy Avalanche Photodiodes (APDs) have recently been found to exhibit low noise similar to Silicon APDs. The III-V materials can be chosen to operate…
Machine learning electron correlation in a disordered medium
Jianhua Ma, Puhan Zhang, Yaohua Tan +2
Learning from data has led to a paradigm shift in computational materials science. In particular, it has been shown that neural networks can learn the potential energy surface and…
Modeling tunnel field effect transistors - from interface chemistry to non-idealities to circuit level performance
Sheikh Z. Ahmed, Yaohua Tan, Daniel S. Truesdell +2
We present a quasi-analytical model for Tunnel Field Effect Transistors (TFETs) that includes the microscopic physics and chemistry of interfaces and non-idealities. The ballistic…