Hydrogen-Defect Shallow Donors in Si

The influence of different original Si crystals and neutron fluence on the formation of hydrogen-defect shallow donors in neutron-irradiated floating-zone silicon grown in hydrogen atmosphere (FZ Si:H 2 ) is studied. The annealing behavior of neutron-irradiated floating-zone silicon grown in argon a...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2001-04, Vol.40 (4R), p.2123
Main Authors: Meng, Xiang-Ti, Kang, Ai-Guo, Bai, Shou-Ren
Format: Article
Language:English
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Summary:The influence of different original Si crystals and neutron fluence on the formation of hydrogen-defect shallow donors in neutron-irradiated floating-zone silicon grown in hydrogen atmosphere (FZ Si:H 2 ) is studied. The annealing behavior of neutron-irradiated floating-zone silicon grown in argon atmosphere (FZ Si:Ar), neutron-irradiated FZ Si:H 2 kept for three years at room temperature (RT) and only fast-neutron-irradiated FZ Si:H 2 reveals that shallow donors are directly related to hydrogen and defects, especially to thermal-neutron-radiation point defects. The maximum concentration of the shallow donors approaches to a stable value with an increase in neutron fluence. Some characteristics of the shallow donors are discussed.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.40.2123