Lifetimes in plastically deformed n- and p-type germanium have been measured as a function of the amount of deformation and as a function of temperature. The results indicate that the dislocations have an electron capture radius of 3.4×{}10^-8 cm. The lifetime in high-purity crystals containing 10³ to 10⁴ dislocations per square centimeter may consequently be limited by recombination at dislocations.
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Wertheim et al. (1957) studied this question.
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