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News
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2023-12-06
From Uruguay to Karlstad University
Patricia Saenz Mendez came to Karlstad University in 2020, in the midst on the pandemic. A rather strange start, but as a newly appointed docent in chemistry, she feels that she is in exactly the right place.
- I completed my PhD in Uruguay and after that I ended up in Sweden. Before Karlstad University, I was a postdoc at KTH and Örebro University, as well as at University of Gothenburg for a short period, says Patricia Saenz Mendez. I didn’t know that much about Karlstad and the university here when I saw the vacancy, but I realised that it was a subject environment with a specialisation that would suit me perfectly.
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2022-05-09
Chemistry experiments under microgravity condition
Solar cell researchers from Karlstad University have once again conducted experiments in zero gravity during parabolic flights in Bordeaux, France. The aim is to study how the structure of the active layer of the polymer solar cell is formed, to thereby be able to increase its efficiency.
– This is the second time we have conducted experiments during parabolic flights, says Jan van Stam, Professor of Physical Chemistry at Karlstad University. We are studying the transition from solution to thin, solid film that constitutes the active layer of the solar cell, where the sunlight is converted into electricity. When you remove gravity, structure formation slows down. This makes it possible for us to, in more detail, study how the structure of the material changes.
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2022-01-31
Rocket science applied to chemistry research
Solar cell research at Karlstad University has been granted further funding from the Swedish National Space Agency, SNSA. Later this year, the research group in chemistry and materials physics will carry out experiments under microgravity conditions on parabolic flights in Bordeaux, France. The aim is to study how the structure of the active layer of the solar cell is formed.
- We are very pleased that the SNSA continues to invest in our research, says Jan van Stam, Professor of Physical Chemistry at Karlstad University. We have also been approved by ESA, the European Space Agency, to carry out our new experiments during parabolic flights in 2022. This confirms that we are on the right track in a very competitive environment and that our research here at Karlstad University is of international importance.
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2022-01-18
Carbon Nanotubes – the New Black
Carbon nanotubes are of great interest in both scientific research and commercial applications thanks to the unique properties of the material. A new thesis at Karlstad University looks at how the atomic structure influences the different properties of the material.
- At the moment, there are too few measuring standards and no proper classification system for carbon nanotubes, says Mattias Flygare, recently qualified doctor of physics who just published his thesis. I have studied the effect of crystallinity on different properties, such as the bending stiffness and electrical conductivity of the tubes. We know that if the tubes had a perfect atomic structure, these properties would be outstanding, however, this is rarely the case in reality.
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2022-01-11
Research on more efficient organic solar cells
The research on organic solar cells at Karlstad University takes another step forward, thanks to a research grant from the Swedish Research Council.
- We are going to study the molecular interactions between the electron donating and the electron accepting molecules, says Ellen Moons, Professor of Physics and leader for the research project. We believe that this interaction is crucial for both the structure formation and charge transfer at the interface between donor and acceptor, and that it affects the efficiency of the solar cells.
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2021-11-24
Solar cell research with a new direction
Over the last decade, perovskites have received much attention in solar cell research all over the world. Perovskite solar cells combine the benefits of the high performance of conventional silicon solar cells and the low cost of polymer-based solar cells. It sounds like a winner, but there is still much research to be made before it is possible to produce perovskite solar cells commercially.
- Perovskite has a significant potential as a photovoltaic material with high power conversion efficiencies, says Ellen Moons, professor of Physics who is heading the research.