8 citations · 20 across the 6 of their papers we have counts for
4 papers · 1 filter
Biaxial Strain Modulated Valence Band Engineering in III-V Digital Alloys
Sheikh Z. Ahmed, Yaohua Tan, Jiyuan Zheng +2
Some III-V digital alloy avalanche photodiodes exhibit low excess noise. These alloys have low hole ionization coefficients due to presence of small 'minigaps', enhanced effective…
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…
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…