Researchers capture microimages of micropillar P/N junctions on a semiconductor
By equipping a semiconductor, with which you can convert sunlight into electricity, with micropillars, you can increase the surface and efficiency. Creating a so-called P/N junction in these micropillars, which follows the 3D structure of the surface, is essential in this to be able to properly separate the positive and negative charge in the structure. Scientists of the UT research institute MESA+ have for the very first time succeeded in accurately visualizing these P/N junctions in semiconductors in 3D. They created a semiconductor with a million minuscule micropillars per square centimetre and succeeded in accurately portraying the P/N junction with an electron microscope. The research has been published in the prominent scientific journal Advanced Energy Materials.