Group Members

Principal Investigator:

Shaikh Shahid Ahmed, Ph.D., is a Professor in the School of Electrical, Computer, and Biomedical Engineering at Southern Illinois University Carbondale, Illinois, USA. He received the B.S. degree in electrical and electronic engineering from Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh, in 1998, and the M.S. and Ph.D. degrees in electrical engineering from Arizona State University, Tempe, in 2003 and 2005, respectively. From 2005 to 2007, he was a Post-Doctoral Research Associate with the School of Electrical and Computer Engineering at Purdue University, West Lafayette. Dr. Ahmed’s research interests include computational nanoelectronics and involves multiscale modeling of electronic structure and carrier transport in nanoscale devices, including novel transistors, quantum dot entangled photon sources, energy-harvesting devices and their reliability, and harsh-environment and power electronic devices. Dr. Ahmed has graduated 14 PhD and 11 MS students. He has published over 84 articles in refereed journals and proceedings, authored six book chapters, and contributed to more than 90 technical presentations. He has authored/coauthored 14 nanoelectronics software tools, access to which are freely available on nanoHUB.org. He teaches a variety of courses in the areas of semiconductor devices, VLSI characterization, quantum phenomena, power electronics, and electric and hybrid vehicles. Dr. Ahmed is a senior member of the IEEE, a member of the American Physical Society and the HKN Honor Society. He was a recipient of the 2009 Oak Ridge National Lab/ORAU High-Performance Computing Award, the 2016 Air Force Research Lab Summer Faculty Fellowship, the 2013 Dean Juh Wah Chen Outstanding Faculty Award from SIU College of Engineering, and the 2014 ECE Department Outstanding Teacher Award. He was the Principal Investigator of the NSF funded Southern Illinois High Performance Computing Research Infrastructure.

Group Students:

(from left: Muntahi, Vinay, Vamsi, Krishna, Shaikh, Sasi, Sameer, Khadija)

(from left: Rezaul, Vamsi, Abu, Muntahi, Sameer)

Current Members:

Aqeel Alalawi (PhD, from spring 2022): Nanoscale quantum photon devices (tentative)
Salim Almenshad (PhD, from spring 2022): Nitride finFETs and nanowire devices (tentative)

Past Members:

PhD Students:

Mohammad Z. Rashid (PhD, now at Intel, Boston): Coupled Electron-Phonon Transport Modeling in Nanostructures
Zichang Zhang (PhD): Systemic Investigation of Ga2O3 from Material to Device, December 2020
Ye Wu (PhD, now Assistant Professor at Xi'an Jiaotong Liverpool University): First-Principles and Atomistic Modeling of Polarization and Auger Processes in Wurtzite Nanowire Optical Devices, December 2019.
Mayada Taher (PhD, now at University of Technology, Baghdad, Iraq): Design and Numerical Characterization of Ultrafast III-Nitride Multiple-Quantum-Dots-In-Nanowire Laser And its Applications, August 2019.
Khadija Abul Khair (PhD, now at Intel, Santa Clara, CA): Diffusive Transport in Monolayer Molybdenum Disulfide (MoS2) Under Strain, May 2019.
Saad Mubarak Al-Kahtani (PhD, now at King Fahd University of Petroleum and Minerals): Bandstructure and Polarization Engineering of Wurtzite Nanostructures for Application in Energy Related Devices, December 2018.
Md Rezaul Karim Nishat (PhD, now at Intel, CA): Design of Nanostructured Entangled Photon Pair Generator for QKD Applications, August 2018.
Abdussamad Muntahi (PhD, now at KLA-Tencor, CA): Nanoscale Effects in Junctionless Field Effect Transistors, May 2018.
Abdullah Abdulmuin (PhD, Now: Umm Al-Qura University, Saudi Arabia): Multiscale Modeling of III-Nitride Core-Shell Solar Cells, May 2017.
Sameer Al-Sibiani (PhD, Now: Assistant Professor, Yanbu Industrial College, Saudi Arabia): Modeling Quantum and Coulomb Effects in Nanoscale Enhancement-Mode Tri-Gate III-V MOSFETs, May 2015.
Vamsi Gaddipati (PhD, JP Morgan Chase Co, Big-Data Hadoop Architect Lead, Vice President, NJ): Effects of Structural Modification on Reliability of Nanoscale Nitride HEMTs, December 2014.
Sasi Sundaresan (PhD, now at Qualcomm, CA): Atomistic modeling of phonon bandstructure and transport for optimal thermal management in nanoscale devices, May 2014.
Vinay Chimalgi (PhD, now at Qualcomm, CA): Crystal structure engineering for improved performance of emerging nanoscale devices, May 2014.
Krishna Yalavarthi (PhD, now at Qualcomm, CA): Interplay of electrical, mechanical and thermal fields in III-N nanostructures for LED applications, July 2013.

MS Students:

Maziar Sayeh (MS, now doing PhD at U Oklahoma): Investigating β-Ga2O3 Based MOSFETs and Their Electrical Breakdown, August 2023
Shahrul Islam (MS, now at U Notre Dame): Can Asymmetry Quench Self-Heating in MOS High Electron Mobility Transistors?, August 2020
Afsana Sharmin (MS, now at U Arkansas): Designing a nano-enabled embedded thermoelectric cooler, November 2013.
Ky Merrill (MS, now at ASU): Optical anisotropy in GaN/InN/GaN dot-in-wires, July 2012.
Yashvanth Puttaswamy (MS, now at Global Systems): Degradation of solid-state lighting devices, May 2012.
Joshua Ogden (MS, now at Lockheed Martin): Modeling random dopant fluctuation effects in nanoscale trigate MOSFETs, December 2011.
Dylan John (MS, now at Samsung): Atomistic modeling of AlN/GaN HEMTs for applications in harsh environments, May 2011.
Muhammad Rahman (MS, worked as RA, now at ComCast): A Web Portal System for Accessing Maxwell Supercomputer at SIUC (primary GA project supervisor, graduated from CS), May 2011.
Sasi Sundaresan (MS, now at Qualcomm): Modeling internal fields in InAs/GaAs quantum dots, May 2010.
Ramya Hindupur (MS, now at Intel): Floating body memory devices, December 2010.
Sharnali Islam (MS, did PhD at UIUC, Worked at Intel, now Professor at The University of Dhaka, Bangladesh): Atomistic modeling of unintentional single charge effects in nanoscale FETs, May 2010.
Shareef uddin Mohammad (MS, Richard. Texas): Modeling Nitride based Quantum Dots: Multimillion Atom Tight-Binding Simulations, 12/2009.

Undergraduate Researchers:

Chase A Lotito (SIU): Ga2O3 device simulation (2023-)
Fatima Gavrish (SIU): Advanced device characterization (2025 -)
Rachel Bolerjack (SIU): TEC characterization and modeling (2/2017 – 6/2017)
Ryan Guss (SIU): TEC characterization and modeling (9/2016 – 6/2017)
Mahir Morshed (UIUC): NanoPrinting of TECs, summer 2016
Allison Campbell (SIU): Software design of a TEC unit, 2014–15
Steven Blair (SIU): 3-D printing and characterization of a thermoelectric cooler, 2014-15
Joseph Richards (Illinois Wesleyan University): Piezoelectric energy harvesting module development, summer 2014
Chance Baker (SIU): Thermal mapping of integrated circuits using the HotSpot toolkit, 2013
Katina Mattingly (Murray State): Nanoscale solid-state lighting device simulator (nanoSSL) for nanoHUB.org, summer 2012

Collaborators (Past/Present)

M P Anantram (U Washington), Timothy Boykin (UA Huntsville), Donald Dorsey (AFRL), Eric Darve (Stanford), David Ferry (ASU), Steven Goodnick (ASU), Ahmad Islam (AFRL), Thushari Jayasekera (SIU), Neerav Kharche (RPI), Gerhard Klimeck (Purdue), Mark Lundstrom (Purdue), Frackson Mumba (UVa), Neophytos Neophytou (University of Warwick), Rajib Rahman (Purdue), Dragica Vasileska (ASU), Chao Lu (SIU), Alejandra Magana (Purdue), Mengxia Zhu (SIU), Mesfin Tsige (Akron), Xiaoguang Zhang (ORNL)

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