Avancerade elektroniska tunnfilmsmaterial (engelska)
Our research deals with synthesis of thin films. We are exploring ways to synthesize new materials or materials with improved performance, and looking for methods to integrate various thin films into complex systems.
Thin film technology is among the strongest technological drivers in our society. Thin film materials are found in industries from electronics and communication to biotechnology.
We use plasma technology to control the material growth from individual atoms. Our strategy is to combine understanding of plasma and growth process with expertise in deposition technology. We focus on the plasma based synthesis and collaborate with others on exciting new materials and their applications.
Currently, we focus on the physics of surface processes in pulsed reactive plasmas, hysteresis in reactive high power impulse magnetron sputtering, and the growth of materials in ionized physical vapour deposition. Exaples of the challenges are:
- Low temperature growth of high performance materials, on temperature sensitive substrates
- Increasing the deposition rate and stoichiometry control in reactive sputtering
- Sputter deposition of 2D sulfides
Research projects
Ongoing projects
NewSkin Innovation Eco-system to Accelerate the Industrial Uptake of Advanced Surface Nano-Technologies
Starts 2020, Ends 2024, Funding DT-NMBP-03-2019, Project ID 862100
The NewSkin project aims to create an Open Innovation Test Bed (OITB) to provide the European Innovation Ecosystem with the necessary resources to uptake a set of game changing innovative processes to manufacture nano-enabled industrial and consumer products. In this project, our group utilizes high power impulse magnetron sputtering (HiPIMS) for synthesis of oxides on flexible substrates. Our work includes also scaling deposition processes up to roll-to-roll in collaboration with Chromogenics AB.
Read more about NewSkin Innovation on their website
BALBAS Fuel cells with aluminium as a base material
Starts 2022, Ends 2024, Funding Swedish Energy Agency, FFI Energi och miljö, Project No P2021-00373
We participate in a new project funded by the Swedish Energy Agency. In this project, academic and industrial partners will collaborate to develop lightweight fuel cells. Our responsibility is to develop physical vapour deposition techniques to provide high performance surface coatings.
Sputter deposition of 2D materials
We develop a sputter-deposition method for deposition of high quality two-dimensional layered sulphide structures, such as WS2, MoS2, SnS2 and combinations thereof. These materials are related to graphene and have potential use in several applications such as sensors, flexible electronics and solar cells.
Reactive High Power Impulse Magnetron Sputtering
Although magnetron sputtering is widely used for thin films deposition, the deposition flux consists predominantly of neutral atoms. When ions are employed during the material synthesis, non-thermal energy may be delivered to the growing film and trigger various physical and chemical processes.
In order to significantly increase the ionization in magnetron sputtering, we use HiPIMS, a process where high power is applied in a pulsed manner. Typical peak power densities may reach kW/cm2 in HiPIMS, which is two orders of magnitude higher than in standard sputtering. The resulting high instantaneous plasma densities lead to high metal ionization.
Because of the complex interaction between plasma and surfaces, and the dynamic nature of the HiPIMS, the process physics is rather complex. We combine experiments and modelling to understand the process physics and develop novel deposition processes.
Concluded projects
Coating solutions for high performance piezo motors
Development of wear resistant surfaces that operate both in ambient atmosphere and in ultrahigh vacuum.
Project description at Vinnova
Novel cellulose-based masks with improved breathability and additional disinfection effects
Our contribution is on surface functionalization of cellulose materials.