Cechoslovackij fiziceskij zurnal

, Volume 5, Issue 4, pp 528–535 | Cite as

The thermal photo-electric phenomenon in semi-conductors

  • Jan Tauc


On illuminating homogeneous samples cut from single crystals of germanium an emf was observed when a thermal current flowed through them. This phenomenon was called a “thermal photo-electric phenomenon” and is caused by the fact that illumination changes the thermal emf of the semi-conductor. Using equations from the thermodynamics of irreversible processes a theory of this phenomenon was elaborated. Its conclusions are in agreement with preliminary measurements. It is shown that the measurement of a thermal photo emf renders possible the determination of Q 1 * +Q 2 * where Q 1 * , Q 2 * are the mean kinetic energies transferred by the electron and hole respectively. The type of scattering of the current carriers can be judged from the magnitude of Q 1 * +Q 2 * .


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Czechoslovak Academy of Sciences 1955

Authors and Affiliations

  • Jan Tauc
    • 1
  1. 1.Institute of Technical PhysicsCzechosl. Acad. Sci.Prague

Personalised recommendations