Ammar Nayfeh

Ammar Nayfeh Department of Electrical Engineering and Computer Science

Associate Professor – Department of Electrical Engineering and Computer Science
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Bio

Associate Professor - Microsystems Engineering

Dr Ammar Nayfeh is currently an associate professor in the  Department of Electrical Engineering and Computer Science (EECS) and director of the Nano Electronics and Photonics group (NEP) at Masdar Institute. He received his Bachelor's degree in Electrical Engineering from the University of Illinois Urban Champaign (2001) and his Master's degree in 2003 from Stanford University.

He earned a PhD in Electrical Engineering (EE) from Stanford University in 2006. His research focused on heteroepitaxy of Germanium on Silicon. Prior to joining the Masdar Institute, Dr. Nayfeh was with Advanced Micro Devices (AMD) as a researcher working on Ultra Thin Body (UTB) SOI Devices for 22nm and beyond in a joint project with IBM. Most recently, Dr. Nayfeh was employed at Innovative Silicon (ISi), a Silicon Valley startup that licenses Z-RAM Technology, a DRAM replacement. In addition, he was a part-time professor at San Jose State University. Professor Ammar Nayfeh has authored or co-authored over 45 publications, and holds two patents. He is a member of IEEE and Stanford Alumni Association.  He has received the Material Research Society Graduate Student Award, the Robert C. Maclinche Scholarship at UIUC, and Stanford Graduate Fellowship.

Additional information on Professor Ammar Nayfeh’s research can be found at http://www.nep-masdar.com

Courses/Teaching interests:

  • Integrated Microelectronic Devices
  • Physics of Microfabrication: Front End Processing
  • Micro/Nano Processing Technology  

Advisor to current PhD Masdar Institute students:

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Advisor to current MSC Masdar Institute students:

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Projects

Projects:

  • Masdar Institute – MIT Flagship
    • Ultimate Solar: High Efficiency Multi-junction Si-based Cells and Optical Concentrators
    • PI Masdar Institute: Professor Ammar Nayfeh
    • PI MIT:  Professor Gene Fitzgerald 
    • CoPIs MIT: Professors Judy Hoyt, and Marc Baldo,
    • CoPIs Masdar Institute: Professors Marco Stefancich, Matteo Chiesa and Marcus Dahlem
  • Masdar Institute – MIT joint research project
    • Thin Film PV
      • PI Masdar Institute: Professor Ammar Nayfeh
      • PI MIT: Professor Judy Hoyt
  • Twin Labs: Low Power Memory
    • Low Power Memory for 3D application
      • PI:  Professor Ammar Nayfeh
      • External

Student Research Areas:

  • Thin Film PV, Tandem Cells and Nanotechology enhanced solar cells
    • Students: Sabina Abdul Hadi, Aaesha Alnuaimi, Kazi Mohitul Islam, Vikas Kkumar, Farsad Chowdhury, Noura Al Wahshi, Fatima M. Mahmoud
  • Nano Memory:
    • Students: Ayman Rizk ,Nazek El Atab
  • Nano Materials and Structures:
    • Students: Amro Al Khatib

More details at www.nep-masdar.com

Publications

 

  • Nazek El-Atab, Berk Berkan Turgut, Ali Okyay, and Ammar Nayfeh “Charge Trapping Memory with 2.85-Nm Si-Nanoparticles Embedded in HfO2” 227th ECS meeting 2015, no. 2261, Chicago, Illinois, May 24-28, 2015 (a)
  • Nazek El-Atab, Berk Berkan Turgut, Ali Okyay, and Ammar Nayfeh “Graphene Nanoplatelets Embedded in HfO2 for MOS Memory” 227th ECS meeting 2015, no. 879, Chicago, Illinois, May 24-28, 2015 (a)
  • Nazek El-Atab, Berk Berkan Turgut, Ali K. Okyay and Ammar Nayfeh "An All-ALD MOS Memory with Double-Layer High-қ Tunnel Oxide Al2O3/HfO2 and ZnO Charge Trapping Layer,"  MRS 2015 Spring Meeting, Paper AA4.07, San Francisco, CA, April 1-5, 2015 (a)
  • Farsad  Imtiaz  Chowdhury, Kazi  Islam, Ammar  Nayfeh, “Improved Efficiency of Thin Film a-Si p-i-n Solar Cells Using Silver and Gold Plasmonic Nanoparticles,” MRS 2015 Spring Meeting, San Francisco, CA, April 1-5, 2015 (a)
  • Nazek El-Atab, Ayman Rizk, Burak Tekcan, Sabri Alkis, Ali K. Okyay, and Ammar Nayfeh, “Memory effect by charging of ultra-small 2-nm laser-synthesized solution processable Si-nanoparticles embedded in Si-Al2O3-SiO2 structure” Phys. Status Solidi A, vol. 212, no. 2 Feb (2015)  (b)
  • Sabina Abdul Hadi, T. Milakovich, M.T Bulsara, S. Saylan, M.S Dahlem, E.A. Fitzgerald, and A. Nayfeh,  "Design Optimization of Single-Layer Antireflective Coating for GaAs1-xPx/Si Tandem Cells With  x= 0, 0.17, 0.29, and 0.37", IEEE Journal of Photovoltaics, Volume 5 Number 1 Jan 2015  (b)
  • Nazek El-Atab, Furkan Cimen, Sabri Alkis, Ali K. Okyay and Ammar Nayfeh "Enhanced memory effect with embedded graphene nanoplatelets in ZnO charge trapping layer,"  Appl. Phys. Lett. 105, 033102 (2014) (b)
  • Nazek El-Atab, Ayse Ozcan, Sabri Alkis, Ali K. Okyay, and Ammar Nayfeh " Silicon nanoparticle charge trapping memory cell", physica status solidi (RRL) - Rapid Research Letters Volume 8, Issue 7, pages 629–633, July 2014 (b)
  • Nazek El-Atab, Ayse Ozcan, Sabri Alkis, Ali K. Okyay, and Ammar Nayfeh "Low power zinc-oxide based charge trapping memory with embedded silicon nanoparticles via poole-frenkel hole emission", Appl. Phys. Lett. 104, 013112 (2014) (b)
  • Nazek El-Atab and Ammar Nayfeh, “Reduced Programming Voltage with SiO2/HfO2 Tunnel Oxide for SONOS Memory,” MRS 2014 Spring Meeting, Paper BB11.28, San Francisco, CA, April 21-25, 2014(a)
  • Aaesha Alnuaimi, Kazi Islam, Sabina Abdul Hadi, Ammar Nayfeh, “Effect of Epitaxially Grown c-Si Thickness on the Performance of Thin Film HIT Solar Cells,” MRS Spring Meeting 2014 (a)
  • Nazek El-Atab, Ayman Rizk, Ali K. Okyay, and Ammar Nayfeh, “ZnO Charge Trapping Memory Cell with Ultra-Thin Chromium Oxide Trapping Layer,” MRS 2014 Spring Meeting, Paper BB11.29, San Francisco, CA, April 21-25, 2014(a)
  • Invited. Ammar Nayfeh, Ali K. Okyay, Nazek El-Atab, Ayse Ozcan, and Sabri Alkis, “Low Power Zinc-Oxide Based Charge Trapping Memory with Embedded Silicon Nanoparticles,” Invited, 226th ECS meeting 2014, no. 46, p. 2143-2143, Cancun, Mexico, October 5-10, 2014 (a)
  • Invited. Ammar Nayfeh, Ali K. Okyay, Nazek El-Atab, Furkan Cimen, and Sabri Alkis, “Transparent Graphene Nanoplatelets for Charge Storage in Memory Devices,” Invited, 226th ECS meeting 2014, no. 37, p. 1879-1879, Cancun, Mexico, October 5-10, 2014 (a)
  • Late news. Nazek El-Atab, Ayse Ozcan, Sabri Alkis, Ali K. Okyay, and Ammar Nayfeh, “2-nm Laser-Synthesized Si Nanoparticles for Low-Power Charge Trapping Memory Devices,” Accepted as late-news submission for oral presentation, 14th IEEE International Conference on Nanotechnology, Toronto, Canada, August 18-21, 2014 (a)
  • Nazek El-Atab, Ayman Rizk, Burak Tekcan, Sabri Alkis, Ali K. Okyay, and Ammar Nayfeh, “MOS Memory using 2-nm Silicon Nanoparticles Charge Trapping Layer,” Advances in Materials and Processing Technologies 2014 conference, Dubai, United Arab Emirates, November 16-20, 2014 (a)
  • Nazek El-Atab, Furkan Cimen, Sabri Alkis, Bülend Ortaç, Mustafa Alevli, Nikolaus Dietz, Ali K. Okyay and Ammar Nayfeh "Enhanced Retention Characteristic of MOS Charge Trapping Memory with InN Nanoparticles Embedded in ZnO Charge Trapping Layer,” MRS 2014 Fall Meeting, Paper M1.05, Boston, MA, December 1-5, 2014 (a)
  • Nazek El-Atab, Furkan Cimen, Sabri Alkis, Ali K. Okyay and Ammar Nayfeh "MOS Charge Trapping Memory with Graphene Nanoplatelets Embedded in ZnO Charge Trapping Layer,"  MRS 2014 Fall Meeting, Paper M2.02, Boston, MA, December 1-5, 2014 (a)
  • Sabina Abdul Hadi, Pouya Hashemi, Nicole DiLello, Evelina Polyzoeva, Ammar Nayfeh,  Judy L. Hoyt, "Thin-film Si1−xGex HIT solar cells", Solar Energy Volume 103, May 2014 Pages 154-159 (b)
  • Kazi Islam, Aaesha Alnuaimi, Enes Battal, Ali Kemal Okyay, Ammar Nayfeh, "Effect of gold nanoparticles size on light scattering for thin film amorphous-silicon solar cells", Solar Energy Volume 103, May 2014 Pages 263–268 (b)
  • Nazek El-Atab, Furkan Cimen, Sabri Alkis, Bülend Ortaç, Mustafa Alevli, Nikolaus Dietz, Ali K. Okyay and Ammar Nayfeh "Enhanced memory effect via quantum confinement in 16 nm InN nanoparticles embedded in ZnO charge trapping layer", Appl. Phys. Lett. 104, 253106 (2014) (b)
  • Sabina Abdul Hadi, Evelina Polyzoeva, Tim Milakovich, Mayank Bulsara, Judy L Hoyt, Eugene A Fitzgerald, Ammar Nayfeh, “Novel GaAs 0.71 P 0.29/Si tandem step-cell design,” Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th (a)
  • Vikas Kumar, Ammar Nayfeh, “Design of Impact Ionization enhanced thin film c-Si HIT solar cells”, Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th, 1059-1063 (a)
  • Farsad Chowdhury, Aaesha Alnuaimi, Kazi Islam, Ammar Nayfeh, “Efficiency enhancement in thin-film c-Si HIT solar cells using luminescent 2.85 nm silicon nanoparticles,” Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th, 2209-2213 (a)
  • Aaesha Alnuaimi, Vikas Kumar, Farsad Chowdhury, Ammar Nayfeh, “Effect of carbon diffusion on performance of thin film c-Si HIT solar cells with a-SiC passivation layer,” Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th, 1197-1200 (a)
  • Kazi Islam, Farsad Chowdhury, Aaesha Alnuaimi, Ammar Nayfeh, “∼ 10% increase in short-circuit current density using 100nm plasmonic Au nanoparticles on thin film nip a-Si: H solar cells,” Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th, 3071-3075 (a)
  • Noura Al Wahshi, Ammar Nayfeh, “Single junction GaAs-Ge stacked tandem cell,” Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th, 0295-0298 (a)
  • Farsad Imtiaz Chowdhury, Kazi Islam, Sabri Alkis, Vikas Kumar, Buelend Ortac, Mustafa Alevli, Nikolaus Dietz, Ali Kemal Okyay, Ammar Nayfeh, “Effect of Photoluminescent Indium Nitride Nanocrystals on the Performance of a-Si:H Solar Cell,” MRS Fall Meeting 2014 (a)
  • Farsad Imtiaz Chowdhury, Kazi Islam, Aaesha Alnuaimi, Ammar Nayfeh, “Efficiency Enhancement of Thin Film c-Si HIT Cells Using Plasmonic Gold Nanoparticles,” MRS Fall Meeting 2014 (a)
  • Vikas Kumar, Aaesha Alnuaimi, Ammar Nayfeh, “Emitter Design on a-Si (n+)/c-Si (p+) Heterojunction Solar Cells,”, MRS Fall Meeting 2014 (a)
  • Sabina Abdul Hadi, P. Hashemi, Nicole DiLello, A. Nayfeh, and J. Hoyt, “Effect of germanium fraction on the effective minority carrier lifetime in thin film amorphous-Si/crystalline-Si1xGex/crystalline-Si heterojunction Solar Cells”, AIP Advances 3 (5), 052119-052119-6), 2013 (b)
  • Amro Alkhatib and Ammar Nayfeh,  “A Complete Physical Germanium-on-Silicon Quantum Dot Self-Assembly Process” Nature Scientific Reports 3, Article number: 2099, 2013 (b)
  • Sabri Alkis, Burak Tekcan, Ammar Nayfeh, Ali Kemal Okyay,  “UV/vis range photodetectors based on thin film ALD grown ZnO/Si heterojunction diodes” Journal of Optics, Vol 15 Issue 10 page 105002, 2013 (b)
  • Vikas Kumar, Ammar Nayfeh “Thin Film c-Si Solar Cell Enhanced with Impact Ionization,” Modelling Symposium (EMS), 2013 European, 681-684 (a)
  • Ayman Rizk, Kazi Islam, Ammar Nayfeh, “Modeling of InAs/GaAs Quantum Dot Solar Cells,” Modelling Symposium (EMS), 2013 European, 677-680 (a)
  • Noura Al Wahshi, Ammar Nayfeh, “Effect of the Interface States on the Key Design Parameters in c-Si HIT Solar Cells,” Modelling Symposium (EMS), 2013 European, 408-413 (a)
  • Kazi Islam, Aaesha Alnuaimi, Helmy Ally, Ammar Nayfeh, “ITO, Si3N4 and ZnO: Al--Simulation of Different Anti-reflection Coatings (ARC) for Thin Film a-Si: H Solar Cells,” Modelling Symposium (EMS), 2013 European, 673-676 (a)
  • Nazek El-Atab, Samar Alqatari, Feyza B. Oruc, Tewfic Souier, Matteo Chiesa, Ali K. Okyay, and Ammar Nayfeh" Diode behavior in ultra-thin low temperature ALD grown zinc-oxide on silicon" AIP Advances 3, 102119 (2013) (b)
  • Nazek El-Atab, Ayman Rizk, Ali K. Okyay, and Ammar Nayfeh "Zinc-oxide charge trapping memory cell with ultra-thin chromium-oxide trapping layer", AIP Advances 3, 112116 (2013) (b)
  • Aaesha Alnuaimi, Kazi Islam, Ammar Nayfeh, "Reduction of interface traps at the amorphous-silicon/crystalline-silicon interface by hydrogen and nitrogen annealing",  Solar Energy Volume 98, Part C, December 2013, Pages 236–240  (b)
  • Kazi Islam, Aaesha Alnuaimi, Ali Kemal Okyay and Ammar Nayfeh, “Improved Efficiency of Thin Film a-Si:H Solar Cells with Au Nanoparticles” (2013 39th Photovoltaic Specialists Conference (PVSC)) (a)
  • Samar Alqatari, Feyza B. Oruc,Tewfik Souier1, Matteo Chiesa, Ali K. Okyay and Ammar Nayfeh, “Thin Film ALD Grown ZnO(n)/Si(P+) Heterojunction Diode”, MRS 2013 Spring Meeting (a)
  • Aaesha Alnuaimi, Ammar Nayfeh and Viktor Koldyaev “¬¬¬¬Electric Field and Temperature Dependence on the Activation Energy Associated with Gate Induced Drain Leakage (GIDL),” Journal of Applied Physics (JAP) 113 (4), pp. 044513-044513-5 2013 (b)
  • Feyza B. Oruç, Furkan Cimen, Ayman Rizk, Mohammad Ghaffari, Ammar Nayfeh Member, and Ali K. Okyay, “Thin-Film ZnO Charge-Trapping Memory Cell Grown in a Single ALD Step” IEEE Electron Device Letters Vol. 99 pp1-3  2012 (b)
  • Kazi Islam and  A. Nayfeh, ""Simulation of a-Si/c-GaAs/c-Si Heterojunction Solar Cells," IEEE Computer Modeling and Simulation (EMS), 2012 Sixth UKSim/AMSS European Symposium pp, 464-470 (a)
  • Ayman Rizk and Ammar Nayfeh " Si Nanowire Memory Cell," 12th IEEE International Conference on Nano Technology (IEEE-Nano) pp. 1-5 August 20-24 2012 (a)
  • Sabina Abdul Hadi, P. Hashemi, Nicole DiLello, A. Nayfeh, and J. Hoyt, “Thin Film a-Si/c-Si1-xGex/c-Si Heterojunction Solar Cells with Ge Content Up To 56%”, IEEE PVSC proceedings pp.5-8 (2012) (a)
  • Aaesha Alnuaimi and Ammar Nayfeh, “Effect of Interface States (Dit) at the a-Si/c-Si Interface on the Performance of Thin Film a-Si/c-Si/c-Si Heterojunction Solar Cells”, IEEE PVSC proceedings pp.996-999 (2012) (a)
  • Efe Onaran, M Cengiz Onbasli, Alper Yesilyurt, Hyun Yong Yu, Ammar Nayfeh, Ali K Okyay, " Silicon-Germanium multi-quantum well photodetectors in the near infrared", Optics Express, Vol. 20, Issue 7, pp. 7608-7615, March 2012. (b)
  • Sabina Abdul Hadi, P. Hashemi, Nicole DiLello, A. Nayfeh, and J. Hoyt, “Effect of c-Si1-xGex Thickness Grown by LPCVD on the Performance of Thin-Film a-Si/c-Si1-xGex/c-Si Heterojunction Solar Cells”, MRS Proceedings Vol.1447 2012 (a)
  • Amro Alkhatib, Matteo Chiesa and Ammar Nayfeh,  “Ordered Self-Assembly of Ge Quantum-Dots for Quantum Computing and Memory Applications” MRS 2012 (a)
  • Ayman Rizk and Ammar Nayfeh "ZnO Charge Trap Memory with embed nano-particles," IEEE International Conference on Nano Technology 2012 (a)
  • Sabina Abdul Hadi, P. Hashemi, A. Nayfeh, J. L. Hoyt, "a-Si/c-Si1-xGex/c-Si Heterojunction Solar Cells," Simulation of Semiconductor Processes and Devices (SISPAD), 2011 International Conference on, pp191-194 (a)
  • Sabina Abdul Hadi, P. Hashemi, A. Nayfeh, and J. L. Hoyt, “Thin-Film a-Si/c-Si1-xGex/c-Si Heterojunction Solar Cells: Design and Material Quality Requirements,” ECS Trans., vol. 41, no. 3 pp.3-14 2011 (a)