Dr.-Ing. Sarah Riazimehr

Electronic Engineering | Optical Engineering | Nanotechnology

Sarah Riazimehr Researcher at Oxford Instruments plasma technology
Dr. Sarah Riazimehr, Researcher at Oxford Instruments. Photo: AMO GmbH/Martin Braun

Sarah Riazimehr was born and raised in Tehran, Iran. She completed her bachelor studies in Electrical Engineering at the Amirkabir University of Technology – Tehran Polytechnic, Iran.

Due to her passion for complex engineering topics and the interest in the field of semiconductors, she moved to Stockholm, Sweden for her Master studies in Nanotechnology at Kungliga Tekniska högskolan (KTH), where she took her first steps in cleanroom manufacturing.

After finishing her Master studies at KTH, she worked for almost an entire year as a research engineer at the department of applied physics in the Nano silicon group.

There, she was responsible for the physical characterization of functionalized surfaces in the frame of “Droplet microfluidics and functionalized nanowires for detection of circulating tumor cells”. This position helped her to gain experience in the physical and electrical characterization of semiconductor materials and devices.

In June 2013, she joined the group of Graphene based Nanotechnology in University of Siegen, where she started her PhD studies under supervision of Prof. Max Lemme. Since then, her main focus was entirely on scientific research activities based on graphene and other 2D materials for optoelectronic applications.

During her PhD studies, she acquired experience in fabrication as well as electrical and optical characterization of photodetectors based on 2D materials.

Following her supervisor Prof. Lemme, she moved to the RWTH Aachen University in April 2017, where she continued her PhD studies at the department of Electrical Engineering, which is collaborating closely with AMO GmbH.

She handed in her PhD thesis in September 2018 and succesfully defended it in August 2019 at RWTH Aachen University, obtaining the title Dr.-Ing.

Sarah Riazimehr
Sarah's successful PhD defense at RWTH Aachen University
Sarah's PhD defense at RWTH Aachen University, August 2019.
From left to right: Prof. Andrei Vescan, Prof. Max Lemme, Dr.-Ing. Sarah Riazimehr, Dr. Tim Echtermeyer, Dr. rer. nat. Dirk Uwe Sauer.

In March 2019, Sarah joined Micronit Microtechnologies, where she worked as technical project lead and senior process engineer in several prototyping projects, focusing on the development of emerging sensor technologies and integration in applications, such as lab-on-a-chip, POC (Point-of-Care), portable devices, automotive industry, and optical transceiver.

In February 2021, Sarah started her current role at Oxford Instruments Plasma Technology as researcher in residence. In this position, she runs Oxford Instruments activities within the 2D Experimental Pilot Line project (2DEPL), which is funded by EU graphene flagship. The focus of 2DEPL is to assess the readiness of 2D material-based devices for industrial-level production levels.

Professional qualifications and skills of Sarah Riazimehr


Conference Participation

MNE Conference 2023 in Berlin - Sarah Riazimehr
From 25th to 28th September 2023, Sarah attended the Micro & Nano Engineering Conference (MNE) in Berlin, together with colleagues from Oxford Instruments, AMO, and ELD. She presented their joint work on the damage-free deposition of dielectrics on 2D materials using plasma-enhanced atomic layer deposition.
Nobel Prize Dinner, Graphene Study 2017, Gothenburg, Sweden
Nobel Prize Dinner, Graphene Study 2017, Gothenburg, Sweden.
From left to right: Christoph Süßmeier, Sarah Riazimehr, Daniel Schneider.
  • MNE 2023, 25-28 September 2023, Berlin, Germany, Damage-free Plasma-assisted Atomic Layer Deposition of High-quality Dielectrics on 2D Materials (oral presentation).
  • Graphene 2021, 2-29 October, Grenoble, France.
  • 76th Device Research Conference (DRC), 24-27 June 2018, University of California, Santa Barbara, USA, Redefining Responsivity in Graphene based Schottky Diodes (poster).
  • Graphene Week 2017, 25-29 September 2017, Athens, Greece, The origin of high photocurrent in Graphene/Silicon photodiodes (oral presentation).
  • Graphene Study 2017, 25-30 June 2017, Hindås/Gothenburg, Sweden, High Photocurrent in Graphene–Silicon Photodiodes (poster).
  • ImagineNano, 10-13 March 2015, Bilbao, Spain, Spectral Sensitivity of pn-junction Photodetectors based on 2D materials (poster and oral presentation).
  • 2015 Joint International EUROSOI Workshop and International Conference on Ultimate Integration on Silicon, 26-28 January 2015, Bologna, Italy, Spectral sensitivity of a graphene/silicon pn-junction photodetector (oral presentation).
  • 44th European Solid-State Device Conference (ESSDERC 2014), 22-26 September 2014, Venice, Italy.
  • Flatlands Beyond Graphene, Dublin, Ireland, 9-11 July 2014, Spectral response of vapor phase grown molybdenum disulfide (MoS₂) / silicon photodiodes (oral presentation)
  • 43rd European Solid-State Device Research conference (ESSDERC 2013), Bucharest, Romina, 16-20 September 2013