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.