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Title: Transient capacitance measurements of deep level defects introduced in y-ray compensated germanium by long-term annealing at room temperature.
Authors: Pearton, SJ
Williams, AA
Tavendale, AJ
Lawson, EM
Issue Date: Sep-1980
Publisher: Australian Nuclear Science and Technology Organisation
Abstract: Deep level transient spectroscopy (DLTS) has been applied to defect centres in γ-ray compensated germanium that has been subjected to long-term annealing at room temperature. Deep donor levels (Ec - 0.36 eV Ec - 0.20 eV) have been observed for the first time; annealing at 675ºC for 3 hours increased their concentration in proportion to the free carrier density indicating stable defect-impurity complexes. Recently irradiated samples from the original material have not shown these levels. The results support Russian work on the compensation mechanism - the formation of electically inactive vacancy-donor complexes.
ISBN: 0642596980
Appears in Collections:Scientific and Technical Reports

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