期刊
PHYSICA B-CONDENSED MATTER
卷 308, 期 -, 页码 1125-1128出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-4526(01)00908-5
关键词
vacancies; hydrogen; optical absorption; silicon
By applying a new quenching method, we determined the formation energy of vacancies (V) in high-purity silicon. Specimens were scaled in quartz capsules together with H-2 gas and heated at high temperatures for 1 h followed by quenching in water, By this method, V are quenched in the form of complexes with hydrogen and the formation energy of V can be determined from the quenching temperature dependence of the intensity of the optical absorption peak due to the complexes. The formation energy of V in high-purity silicon was determined to be about 4.0 eV. This value is in good agreement with results of recent theoretical calculations. (C) 2001 Elsevier Science B.V. All rights reserved.
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