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The bright spheres symbolize bound charge carriers in the material. The light beam separates these charges, which are then deflected in different ways in the applied magnetic field. With the CLIMAT method, around 14 different parameters of the transport properties in semiconductors can be measured with a single measurement, for example, density, lifetime, diffusion lengths, and mobility. Credit: Laura Canil in a single measurement.
The behavior of negative and positive charge carriers in semiconductors often differs by orders of magnitude in terms of mobility, diffusion lengths, and lifetime. Until now, the parameters of the transport properties had to be determined separately for each type of charge, using different measurement methods.As part of his “Maria Skłodowska Curie Postdoctoral Fellowship,” HZB physicist Dr.
A total of 14 different properties can be determined from the signals and, in particular, the differences between the signals of the different charge carriers, Musiienko showed with a neat little system of equations.“CLIMAT thus provides a comprehensive insight into the complicated mechanisms of charge transport, both positive and negative charge carriers, with a single measurement.
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