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Ab-initio studies of local vibrations of small self-interstitial aggregates in silicon

Lookup NU author(s): Professor Patrick Briddon

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Abstract

We report on the energetics, electrical and optical activity of small self-interstitial (I3 and I4) clusters in Si, found from ab-initio density-functional modeling studies. I4 possesses nine local vibrational modes above the Raman edge, which account for up to three dipole-allowed vibronic transitions observed in recent experiments associated with the X-photoluminescent line. Another prominent photoluminescent line (known as the W-line) that shows a trigonal stress-induced splitting pattern, has been previously assigned to I3. Our analysis of the LVMs of a metastable form of I3 support this assignment.


Publication metadata

Author(s): Carvalho A, Jones R, Coutinho J, Torres VJB, Briddon PR

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 11th International Autumn Meeting on Gettering and Defect Engineering in Semiconductor Technlogy, GADEST 2005

Year of Conference: 2005

Pages: 175-180

ISSN: 1012-0394

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-36048993993&origin=resultslist&sort=plf-f&src=s&st1=Ab-initio+studies+of+local+vibrations+of+small+self-interstitial+aggregates+in+silicon&sid=i_8dMytdCGUgbIoeT-0REqz%3a110&sot=b&sdt=b&sl=101&s=TITLE-ABS-KEY%28Ab-initio+studies+of+local+vibrations+of+small+self-interstitial+aggregates+in+silicon%29&relpos=0&relpos=0

Notes: Code 70564

Library holdings: Search Newcastle University Library for this item

Series Title: Diffusion and Defect Data Pt.B: Solid State Phenomena

ISBN: 3908451132


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