iron silicides;
ion implantation;
solid phase crystallization;
EELS mapping;
D O I:
10.1016/j.nimb.2007.01.023
中图分类号:
TH7 [仪器、仪表];
学科分类号:
0804 ;
080401 ;
081102 ;
摘要:
We have investigated ion-beam-induced and thermal annealing-induced microstructures in high fluence Fe implanted Si using transmission electron microscopy. Si(l 11) substrates were irradiated with 120 keV Fe ions at 120 K to fluences of 0.4 x 10(17) and 4.0 x 10(17) CM-2. A continuous amorphous layer was formed on Si substrates in both as-implanted samples. After thermal annealing at 1073 K for 2 h, beta-FeSi2 fine particles buried in a polycrystalline Si layer were observed in the low fluence sample, while a continuous beta-FeSi2 layer was formed in the high fluence sample. We discuss the relationship between ion fluence and defects recovery process in Fe ion implanted Si. (c) 2007 Elsevier B.V. All rights reserved.
机构:
Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
Li, B. S.
Du, Y. Y.
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机构:
Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
Du, Y. Y.
Wang, Z. G.
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机构:
Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China