Abstract
AbstractDetailed experimental and theoretical investigations of the electron‐hole system in germanium in the density range from 1015 to 1017 cm−3 and for temperatures between 15 and 60 K are reported. The theoretical part of the work is carried out using a homogeneous plasma theory which provided the ionization degree as a function of the total density and the temperature. Experimentally the ionization degree is obtained from luminescence measurements of the indirect transition in germanium, which are fitted under the assumption that only free charge carriers end free excitons contribute to the emission.
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