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Thermodynamical Properties of the Electron–Hole System outside the Region of Droplet Formation in Germanium
Author(s) -
Schweizer H.,
Forchel A.,
Klingenstein W.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221020132
Subject(s) - germanium , ionization , atomic physics , exciton , electron , degree (music) , electron hole , luminescence , free electron model , range (aeronautics) , homogeneous , plasma , work (physics) , materials science , chemistry , condensed matter physics , physics , silicon , thermodynamics , ion , optoelectronics , quantum mechanics , organic chemistry , acoustics , composite material
Detailed experimental and theoretical investigations of the electron‐hole system in germanium in the density range from 10 15 to 10 17 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.