DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Chang, Kee-Joo | - |
dc.contributor.advisor | 장기주 | - |
dc.contributor.author | Hwang, Jin-Heui | - |
dc.contributor.author | 황진희 | - |
dc.date.accessioned | 2011-12-14T07:59:35Z | - |
dc.date.available | 2011-12-14T07:59:35Z | - |
dc.date.issued | 2011 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=467636&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/48764 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 물리학과, 2011.2, [ iv, 24 p. ] | - |
dc.description.abstract | Based on first-principle total-energy calculations, we investigate the atomic and electronic structure of B-related defects in both strained and nonstrained tridymite- $SiO_2$ and propose a mechanism for dopant segre-gation in the Si/tridymtie- $SiO_2$ interface. We find that a B dopant can exist in stable and meta-stable states in tridymite- $SiO_2$, and the structural stability changes under strain, depending on the charge state of the dopant and its surrounding environment. In addition, we investigate the stability of various boron-related defects near the $Si/SiO_2$ interface. In the presence of abundant Si self-interstitials, a positively charged interstitial boron is found to diffuse into the oxide and become energetically very stable near the interface, while a substitutional B is unlikely to segregate to the interface. This result indicates that the activation of B dopants is suppressed in the Si region after segregation to the oxide region. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | B dopant | - |
dc.subject | 붕소응집 | - |
dc.subject | 붕소결함 | - |
dc.subject | Si/SiO2 계면 | - |
dc.subject | Tridymite | - |
dc.subject | Si/SiO2 interface | - |
dc.subject | B segregation | - |
dc.subject | Tridymite | - |
dc.title | First-principles study of boron-related defects in $SiO_2$ and boron segregation at the $Si/SiO_2$ interface | - |
dc.title.alternative | Bulk $SiO_2$ 내에서의 붕소결함과 $Si/SiO_2$ 계면에서의 붕소응집에 관한 제일원리 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 467636/325007 | - |
dc.description.department | 한국과학기술원 : 물리학과, | - |
dc.identifier.uid | 020093615 | - |
dc.contributor.localauthor | Hwang, Jin-Heui | - |
dc.contributor.localauthor | 황진희 | - |
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