Vacancy at Si-SiO2 interface: Ab-initio study

Taras A. Kirichenko, Decai Yu, Gyenong S. Hwang, Sanjay K. Banerjee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Using density functional theory calculations within the generalized gradient approximation we have examined structure and dynamics of neutral Si vacancies at Si/SiO2 interface. We show that Si/SiO2 interface may serve as a limited sink for Si vacancies. Single vacancy and vacancy cluster defects are substantially more stable at c-Si/a-SiO2 interface compared to the bulk c-Si layers away from interface, mainly due to termination of dangling bonds with bridging O atoms and reduction of interface strain.

Original languageEnglish
Title of host publication2006 International Conference on Simulation of Semiconductor Process and Devices, SISPAD '06
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages147-149
Number of pages3
ISBN (Print)1424404045, 9781424404049
DOIs
StatePublished - 2006
Event2006 International Conference on Simulation of Semiconductor Process and Devices, SISPAD '06 - Monterey, CA, United States
Duration: 6 Sep 20068 Sep 2006

Publication series

NameInternational Conference on Simulation of Semiconductor Processes and Devices, SISPAD

Conference

Conference2006 International Conference on Simulation of Semiconductor Process and Devices, SISPAD '06
Country/TerritoryUnited States
CityMonterey, CA
Period6/09/068/09/06

Keywords

  • Diffusion vacancy
  • Interface
  • Point defects
  • Si
  • SiO2

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