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Surface Preparation and Characterization of Wide Bandgap Materials
Surface Preparation and Characterization of Wide Bandgap Materials
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152817
- ISBN
- 9798384012443
- DDC
- 530.1
- 저자명
- Vidrio, Ricardo.
- 서명/저자
- Surface Preparation and Characterization of Wide Bandgap Materials
- 발행사항
- [Sl] : The University of Wisconsin - Madison, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 176 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
- 주기사항
- Advisor: Choy, Jennifer T.
- 학위논문주기
- Thesis (Ph.D.)--The University of Wisconsin - Madison, 2024.
- 초록/해제
- 요약The surface chemistry and properties for two wide-bandgap materials, diamond and zirconium dioxide (ZrO2) were investigated with regards to the relevance of these materials for quantum technologies and nuclear energy. Color centers in diamond are efficient quantum emitters with applications in quantum sensing and quantum computing, but the quantum properties crucially rely on the surface termination of the diamond. Herein, the surface chemistry was investigated for (100) single crystalline diamond using photoelectron spectroscopy. Best-practice procedures were defined for preparing diamond surfaces for quantum-grade applications, and analytical methods, via X-ray Photoelectron Spectroscopy (XPS) data, were established for interpreting the oxygen content, contamination level, and sp2 carbon amount on diamond. Dry oxidation by way of UV/ozone exposure and water-pulse atomic layer deposition have been identified as effective techniques that yielded the most contaminant-free surfaces with low sp2 content. By using angle-resolved XPS (ARXPS) the molecular bonding of oxidized (100) single crystalline diamond was analyzed by D-parameter analysis with the Auger electron spectra at various sample tilt angles. From this, a depth estimate of 0.37 ± 0.11 nm was calculated for the native amorphous sp2 carbon layer on the diamond surface. Preliminary data correlating surface analysis with quantum spin measurements is presented.Meanwhile, zirconium alloy is prevalent today as the nuclear fuel cladding in most water-moderated reactor designs, and fundamental understanding of charge transport across oxidized zirconium and its correlation to oxide microstructure is important for reactor safety. This thesis lays out a plan for quantum sensing of microscopic electron transport using NV magnetometry and presents spatially correlated characterization of the oxide composition using electron microscopy. Cathodoluminescence (CL) was analyzed for a 30 μm layer of ZrO2 on a zirconium alloy oxidized in air. The results here represent the early successes of relating the CL features of the ZrO2 sample to the chemical-spatial information provided by the Electron Probe Micro-Analyzer (EPMA) using FIB-deposited makers on the Zr sample to relate spatial features from two datasets taken with two different materials characterization instruments.
- 일반주제명
- Quantum physics
- 일반주제명
- Nuclear engineering
- 일반주제명
- Materials science
- 키워드
- Nuclear energy
- 키워드
- Quantum sensing
- 키워드
- Surface science
- 기타저자
- The University of Wisconsin - Madison Nuclear Engineering & Engineering Physics
- 기본자료저록
- Dissertations Abstracts International. 86-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152817
■006m o d
■007cr#unu||||||||
■020 ▼a9798384012443
■035 ▼a(MiAaPQ)AAI31558880
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530.1
■1001 ▼aVidrio, Ricardo.
■24510▼aSurface Preparation and Characterization of Wide Bandgap Materials
■260 ▼a[Sl]▼bThe University of Wisconsin - Madison▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a176 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-02, Section: B.
■500 ▼aAdvisor: Choy, Jennifer T.
■5021 ▼aThesis (Ph.D.)--The University of Wisconsin - Madison, 2024.
■520 ▼aThe surface chemistry and properties for two wide-bandgap materials, diamond and zirconium dioxide (ZrO2) were investigated with regards to the relevance of these materials for quantum technologies and nuclear energy. Color centers in diamond are efficient quantum emitters with applications in quantum sensing and quantum computing, but the quantum properties crucially rely on the surface termination of the diamond. Herein, the surface chemistry was investigated for (100) single crystalline diamond using photoelectron spectroscopy. Best-practice procedures were defined for preparing diamond surfaces for quantum-grade applications, and analytical methods, via X-ray Photoelectron Spectroscopy (XPS) data, were established for interpreting the oxygen content, contamination level, and sp2 carbon amount on diamond. Dry oxidation by way of UV/ozone exposure and water-pulse atomic layer deposition have been identified as effective techniques that yielded the most contaminant-free surfaces with low sp2 content. By using angle-resolved XPS (ARXPS) the molecular bonding of oxidized (100) single crystalline diamond was analyzed by D-parameter analysis with the Auger electron spectra at various sample tilt angles. From this, a depth estimate of 0.37 ± 0.11 nm was calculated for the native amorphous sp2 carbon layer on the diamond surface. Preliminary data correlating surface analysis with quantum spin measurements is presented.Meanwhile, zirconium alloy is prevalent today as the nuclear fuel cladding in most water-moderated reactor designs, and fundamental understanding of charge transport across oxidized zirconium and its correlation to oxide microstructure is important for reactor safety. This thesis lays out a plan for quantum sensing of microscopic electron transport using NV magnetometry and presents spatially correlated characterization of the oxide composition using electron microscopy. Cathodoluminescence (CL) was analyzed for a 30 μm layer of ZrO2 on a zirconium alloy oxidized in air. The results here represent the early successes of relating the CL features of the ZrO2 sample to the chemical-spatial information provided by the Electron Probe Micro-Analyzer (EPMA) using FIB-deposited makers on the Zr sample to relate spatial features from two datasets taken with two different materials characterization instruments.
■590 ▼aSchool code: 0262.
■650 4▼aQuantum physics
■650 4▼aNuclear engineering
■650 4▼aMaterials science
■653 ▼aNitrogen vacancy center
■653 ▼aNuclear energy
■653 ▼aQuantum engineering
■653 ▼aQuantum sensing
■653 ▼aCathodoluminescence
■653 ▼aSurface science
■690 ▼a0794
■690 ▼a0599
■690 ▼a0552
■71020▼aThe University of Wisconsin - Madison▼bNuclear Engineering & Engineering Physics.
■7730 ▼tDissertations Abstracts International▼g86-02B.
■790 ▼a0262
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163986▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
