Ultra-Pure Germanium Crystal Growth and Characterization

Ultra-Pure Germanium Crystal Growth and Characterization 

The number of characterization techniques that are sufficiently sensitive for this material and preferably impurity species or defect structure specific is rather small. Variable temperature Hall effect measurements in the Van der Pauw (1958) configuration allow the determination of (NA - ND). The 

Small amounts of tritium were added to the hydrogen growth atmosphere of some crystals. Radiation detectors fabricated from these crystals measure the energy distribution of the electrons created in the tritium decays inside the crystal (Hansen et al., 1982). These studies set a lower limit of the hydrogen concentration at a value between 1014 cm 3 and 1015 cm-3. 

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II. Ultra-Pure Germanium Crystal Growth and Characterization... 

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