Dr Mohammad Nasr Esfahani

Biography

Biography

Mohammad Nasr Esfahani is a Lecturer in Mechanical Engineering in the Department of Electronic Engineering since 2019. He received his PhD in 2017 focusing on fabrication and modelling of nanomechanical devices at Koç University, and continued as a Research Fellow in the same research group after achieving the TUBITAK-BIDEB fellowship. Mohammad then joined Warwick Manufacturing Group, University of Warwick, in 2018 lecturing on Solid Mechanics and Finite Element Analysis. He joined the University of York as a Lecturer in Engineering Programme in 2019.  His research interest is directed toward developing materials, devices and systems to solve engineering problems by microsystems and nanodevices. During his research, he has introduced a series of new technologies for high resolution sensors and actuators. Dr. Esfahani demonstrated the application of those technologies to i) new-generation, ultimately small accelerometers, ii) nanoscale frequency references, and iii) a new Micro-Nanoscale integration technique. Accordingly, he has been developing new computational modelling approaches to consider the high surface energy contribution for nanostructures with engineering applications.

Research

Research

Research interests:

• Micro/Nano-electromechanical Systems (MEMS/NEMS)
• Graphene-based devices
• Micro/Nano-fabrication
• Nano-device for digital health care
• Multiscale Modelling
• Molecular Dynamics (MD) simulations
• Finite Element Analysis (FEA)
• Size-dependent physical behaviour of nanostructures

More details of my research projects and outputs can be found at my homepage:

https://www-users.york.ac.uk/~mne502/

Publications

Publications

Selected Outputs:

- Esfahani, Mohammad Nasr, B. Erdem Alaca, and Masoud Jabbari. "Mechanical properties of honeycomb nanoporous silicon: a high strength and ductile structure." Nanotechnology 30.45 (2019): 455702.

- Nasr Esfahani, Mohammad. "Surface stress effects on the mechanical properties of silicon nanowires: A molecular dynamics simulation." Journal of Applied Physics 125.13 (2019): 135101.

- Nasr Esfahani, Mohammad, and Erdem Alaca. "A Review on Size-Dependent Mechanical Properties of Nanowires." Advanced Engineering Materials (2019): 1900192.

- Esfahani, Mohammad Nasr, and B. Erdem Alaca. "Surface Stress Effect on Silicon Nanowire Mechanical Behavior: Size and Orientation Dependence." Mechanics of Materials 127 (2018): 112-123.

- Esfahani, Mohammad Nasr, et al. "Piezoresistive silicon nanowire resonators as embedded building blocks in thick SOI." Journal of Micromechanics and Microengineering 28.4 (2018): 045006.

- Esfahani, M. Nasr, et al. "Monolithic technology for silicon nanowires in high-topography architectures." Microelectronic Engineering 183 (2017): 42-47.

- Esfahani, Mohammad Nasr, Yusuf Leblebici, and B. Erdem Alaca. "A monolithic approach to downscaling silicon piezoresistive sensors." Journal of Microelectromechanical Systems 26.3 (2017): 624-631.

- Esfahani, M. Nasr, et al. "Selecting the optimum engineering model for the frequency response of fcc nanowire resonators." Applied Mathematical Modelling 44 (2017): 236-245.

- Esfahani, M. Nasr, et al. "Effect of geometry in frequency response modeling of nanomechanical resonators." AIP Conference Proceedings. Vol. 1738. No. 1. AIP Publishing, 2016.

- Esfahani, M. Nasr, et al. "Thermo-coupled Surface Cauchy–Born theory: An engineering finite element approach to modeling of nanowire thermomechanical response." Mechanics of Materials 94 (2016): 46-52.

Teaching

Teaching:

• Materials and Mechanics, Engineering Course, Autumn term 2020
• Manufacturing and Fabrication, Engineering Course, Autumn term 2021