We spoke to Desislava Daskalova of AMO GmbH about the team’s expertise and how that feeds into FreeHydroCells project work.
FreeHydroCells is a multi-partner European collaboration between the project lead University College Cork (Ireland), and AMO (Germany), CEA (France), CNR (Italy), RWTH (Germany), BARDS (Ireland) and UCC Academy (Ireland).
AMO is a research institute for nanotechnology with the mission of bridging the gap between fundamental science, innovation, and applications. With decades-long expertise in semiconductor technology, AMO acts as a pathfinder for new technologies in the fields of nanoelectronics, photonics, sensor technology, diagnostics, energy and environment. Founded in 1993 in Aachen, Germany, and closely cooperating with the RWTH Aachen University, AMO runs a 400 m² cleanroom with more than 80 employees across over 30 publicly funded R&D projects.
AMO's important role in FreeHydroCells
In FreeHydroCells, AMO is heavily involved in Work Package 1, starting with the building blocks of the proposed photoelectrochemical (PEC) cell design. These are single thin films of transparent conductive oxides (TCOs) and transition-metal dichalcogenides (TMDs). AMO is also the partner leading Work Package 2, which focuses on the material growth of the multilayer, multijunction PEC cells, their characterisation and optimisation. AMO researchers will tap into their expertise in device engineering based on thin film/2D materials and in the nanofabrication of novel photocatalytic surfaces. Working closely with partners from UCC and CNR, AMO will aim to provide the project with the know-how and infrastructure necessary to achieve the multijunction material stack for the PEC cell. AMO will support the rest of the consortium in demonstrating the cell’s functionality and further project activities.
Getting to know the AMO team
The AMO team working on FreeHydroCells includes:
Dr. Ulrich Plachetka
Head of Sensor Technology department
Ulrich has been a project manager at AMO since 2007 and head of the Sensor Technology & Transducers group since 2014. He received his PhD from RWTH Aachen University (Germany) in 2013. In research, he has focused on optical and environmental engineering, with emphasis on nanostructuring, new semiconductor materials and plasmonics for solar cells, sensors, and more recently photocatalysis.
Ulrich’s full profile is available on LinkedIn.
Desislava Daskalova
Research Associate/PhD Student
Desislava obtained her Bachelor’s degree in Photonics from Sofia University, Bulgaria, and her Master’s degree in Physics from the University of Stuttgart, Germany, with a scholarship from the Max Planck Institute for Solid State Research. At AMO, she is pursuing a PhD in Physics and has worked in Dr. Plachetka’s Sensor Technology group since 2019. She joined FreeHydroCells as a researcher to grow and investigate the TCO/TMD materials and multijunctions.
Desislava’s full profile is available on ResearchGate.

Prof. Max Lemme
Professor, RWTH Aachen University and CEO at AMO GmbH

Prof. Lemme joined AMO in 1998, obtained his PhD in Electrical Engineering from the RWTH Aachen University in 2003, and became both Group Leader in Nanoelectronics and Manager of the clean room. From 2008, he spent two years at Harvard University, Cambridge, USA, where he focused completely on scientific research activities as a Humboldt-Fellow. In 2010 he was appointed as Visiting Professor at the KTH Royal Institute of Technology, Stockholm, Sweden, where he worked on several projects in the field of graphene.
In 2012 he returned to Germany to accept a full professorship on Graphene-based Nanotechnology at the University of Siegen. Since 2017, Prof. Lemme is the Managing Director of AMO and a full professor at RWTH Aachen, where heads the Chair of Electronic Devices. His research interests include new materials like graphene, two-dimensional materials and perovskites and how to integrate them into electronic, optoelectronic and nanoelectromechanical devices.
In FreeHydroCells, Prof. Lemme has separate and distinct roles in the project as Principal Investigator in AMO (Pathfinding R&D) and RWTH (Academic). His full profile and more information is available on LinkedIn, his Chair of Electronic Devices page, ResearchGate, Google Scholar and ORCiD.