CMC Ph.D. student Kasper Borup is finalizing his efforts to construct (from scratch!) two state-of-the-art instruments used in the complete characterization of thermoelectric properties.

The Hall-effect analyzer enables simultaneous identification of the charge-carrier concentrations, their mobilites and the electrical resistivity in heavily doped semiconductors.

The Seebeck-coefficient analyzer measures the Seebeck-coefficient i.e. the how many volts the material generates per Kelvin temperature difference - in the temperature regime 25-800 deg. C.

Both instruments are complementing the existing Quantum Design PPMS-setup, which can measure said properties up to ca. 125 deg C. The Hall-effect analyzer is unique, with the only two known previous "relatives" constructed by NASA-JPL and Caltech (California Institute of Technology), respectively.