Effect of isovalent doping of Si by germanium on the impurity-defect complexes formation probability in the p+n structures base irradiated by α-particles

Keywords: accumulation of impurity-defect complexes, flux of α-particles, probability of the A-, E-, K-centers in CZ nSiGe formation, degradation of the injected minority charge carriers lifetime

Abstract

The probability of A-, E-, K-centers formation in CZ nSi and nSiGe using the previously obtained empirical S-shaped dependences of the accumulation of impurity-defect complexes on the integral flux of α-particles was calculated. Shown, that the probability of vacancy trapping by atoms of interstitial oxygen in SiGe depends nonlinearly on the irradiation dose, and its integral value in the range Φα ≈ 109 ... 5·1010 cm-2 was much lower than in control nSi samples. The results explained using models available in the literature. The change of the defect formation probability correlates well with the data on the lifetime degradation of the injected minority charge carriers in the base of the p+n structure.

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Author Biographies

С. В. Быткин, PJSC «Zaporizhstal»

Scientist

Т. В. Критская, Zaporizhia State Engineering Academy

Scientist

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Published
2019-08-07
How to Cite
Быткин, С. В., & Критская, Т. В. (2019). Effect of isovalent doping of Si by germanium on the impurity-defect complexes formation probability in the p+n structures base irradiated by α-particles. Journal of Surface Physics and Engineering, 3(2), 57-67. Retrieved from https://periodicals.karazin.ua/pse/article/view/13665