What question did this study set out to answer?

To determine the mechanism by which electron injection mitigates radiation-induced minority carrier lifetime degradation in p-type silicon at 76°K.

December 1, 1965Journal of Applied Physics

Injection-Stimulated Vacancy Reordering in p-Type Silicon at 76°K

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Authors

BGB. L. GregoryThe University of Texas at San Antonio

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Implication

Experimental study demonstrates electron injection reduces radiation-induced lifetime degradation in p-type silicon at 76°K, indicating charge-state-driven vacancy reordering.

Key Points

To determine the mechanism by which electron injection mitigates radiation-induced minority carrier lifetime degradation in p-type silicon at 76°K.
Subjected p-type silicon samples to cobalt-60 gamma irradiation at 76°K alongside electron injection.
Conducted isochronal annealing between 76°K and 300°K and compared lifetime recovery profiles with published electron paramagnetic resonance (EPR) data.
Calculated quantitative estimates of vacancy-reordering rates under high injected excess electron densities.
Electron injection at 76°K reduced the rate of carrier lifetime degradation caused by cobalt-60 gamma irradiation.
Lifetime degradation at 76°K was identified as being primarily driven by carrier recombination through lattice vacancies.
Sufficiently high injected electron density altered the vacancy charge state from neutral (mobile above 160°K) to negative (mobile above 60°K), facilitating low-temperature vacancy reordering.

Cite This Study

B. L. Gregory (1965) studied this question.

synapsesocial.com/papers/6a1ec52eeed4f0c78fa43aa8 https://doi.org/10.1063/1.1713944

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Implication

Experimental study demonstrates electron injection reduces radiation-induced lifetime degradation in p-type silicon at 76°K, indicating charge-state-driven vacancy reordering.

Injection-Stimulated Vacancy Reordering in p-Type Silicon at 76°K

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Implication

Key Points

Cite This Study

Injection-Stimulated Vacancy Reordering in p-Type Silicon at 76°K

Discussion

Member takes

Implication

Key Points

Cite This Study

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