Experimental Evidence for an Electrically Neutral (N-Si)-Complex Formed during the Annealing Process of Si+-/N+-Co-Implanted 4H-SiC

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Abstract:

Hall effect investigations taken on Si+-/N+-, C+-/N+- or Ne+-/N+-co-implanted 4H-SiC layers and deep level transient spectroscopy investigations taken on Si+-implanted 4H-SiC layers provide experimental evidence for an electrically neutral defect complex formed during the annealing process at temperatures between 1400°C and 1700°C. This defect complex consumes nitrogen donors and an intrinsic Si containing defect species (interstitial Si or Si-antisite) or Cvacancies. At our present knowledge, we favor an (NX-SiY)-complex.

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Materials Science Forum (Volumes 483-485)

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641-644

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May 2005

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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