서브메뉴
검색
Pushing the Limit of Power Density in Devices with Ultra-Wide Bandgap (All-AlGaN) Heterostructures
Pushing the Limit of Power Density in Devices with Ultra-Wide Bandgap (All-AlGaN) Heterostructures
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153059
- ISBN
- 9798346380771
- DDC
- 620
- 저자명
- Noshin, Maliha.
- 서명/저자
- Pushing the Limit of Power Density in Devices with Ultra-Wide Bandgap (All-AlGaN) Heterostructures
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 112 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-05, Section: A.
- 주기사항
- Advisor: Chowdhury, Srabanti.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약The increasing energy-consumption due to increased electrification of our society is pushing the limit of today's power-electronics systems. To address this challenge, the development of higher energy-density power-electronic devices and systems will be a key enabler of energy technologies for future grid-electronics and data centers. To this end, ultrawide-bandgap (UWBG) semiconducting materials-like aluminum gallium nitride (AlGaN) are emerging as promising candidates for high-power electronics, beyond the limitations of conventional materials like silicon.In this thesis, I will present the first demonstration of nitrogen (N)-polar AlGaN (Al = 20% to 73%) heterostructure based high-electron mobility transistors. First, I will discuss the compositional design space and metal organic chemical vapor deposition (MOCVD)-growth of such heterostructures to realize a tunable and large bandgap, followed by the materials characterization. I will simultaneously explain how the alloy-dominated scattering of charge carriers in such material system can control its two-dimensional electron gas mobility. Leveraging these fundamental understanding, I will demonstrate the realization of the first N-polar AlGaN-channel high electron mobility transistors, achieving simultaneously large drive current, low contact resistance, low leakage current and large breakdown voltage. Finally, I will illustrate the interface-driven thermal and electrical transport and their temperature dependence in such heterostructures, offering important insights into material-device codesign, electronic device functionality and reliability. This work demonstrates the outstanding potential of AlGaN-based heterostructures for high-power density electronic devices and systems.
- 일반주제명
- Silicon
- 일반주제명
- Electrons
- 일반주제명
- Optimization techniques
- 일반주제명
- Electric fields
- 일반주제명
- Electric vehicles
- 일반주제명
- Signal processing
- 일반주제명
- Microscopy
- 일반주제명
- Etching
- 일반주제명
- Aluminum
- 일반주제명
- Transistors
- 일반주제명
- Heat conductivity
- 일반주제명
- Nitrogen
- 일반주제명
- Atomic physics
- 일반주제명
- Electrical engineering
- 일반주제명
- Electromagnetics
- 일반주제명
- Thermodynamics
- 일반주제명
- Transportation
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 86-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017164893
■00520250211153059
■006m o d
■007cr#unu||||||||
■020 ▼a9798346380771
■035 ▼a(MiAaPQ)AAI31652058
■035 ▼a(MiAaPQ)Stanfordry886hk9765
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620
■1001 ▼aNoshin, Maliha.
■24510▼aPushing the Limit of Power Density in Devices with Ultra-Wide Bandgap (All-AlGaN) Heterostructures
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a112 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-05, Section: A.
■500 ▼aAdvisor: Chowdhury, Srabanti.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aThe increasing energy-consumption due to increased electrification of our society is pushing the limit of today's power-electronics systems. To address this challenge, the development of higher energy-density power-electronic devices and systems will be a key enabler of energy technologies for future grid-electronics and data centers. To this end, ultrawide-bandgap (UWBG) semiconducting materials-like aluminum gallium nitride (AlGaN) are emerging as promising candidates for high-power electronics, beyond the limitations of conventional materials like silicon.In this thesis, I will present the first demonstration of nitrogen (N)-polar AlGaN (Al = 20% to 73%) heterostructure based high-electron mobility transistors. First, I will discuss the compositional design space and metal organic chemical vapor deposition (MOCVD)-growth of such heterostructures to realize a tunable and large bandgap, followed by the materials characterization. I will simultaneously explain how the alloy-dominated scattering of charge carriers in such material system can control its two-dimensional electron gas mobility. Leveraging these fundamental understanding, I will demonstrate the realization of the first N-polar AlGaN-channel high electron mobility transistors, achieving simultaneously large drive current, low contact resistance, low leakage current and large breakdown voltage. Finally, I will illustrate the interface-driven thermal and electrical transport and their temperature dependence in such heterostructures, offering important insights into material-device codesign, electronic device functionality and reliability. This work demonstrates the outstanding potential of AlGaN-based heterostructures for high-power density electronic devices and systems.
■590 ▼aSchool code: 0212.
■650 4▼aSilicon
■650 4▼aElectrons
■650 4▼aOptimization techniques
■650 4▼aElectric fields
■650 4▼aElectric vehicles
■650 4▼aSignal processing
■650 4▼aMicroscopy
■650 4▼aEtching
■650 4▼aAluminum
■650 4▼aTransistors
■650 4▼aHeat conductivity
■650 4▼aNitrogen
■650 4▼aAtomic physics
■650 4▼aElectrical engineering
■650 4▼aElectromagnetics
■650 4▼aThermodynamics
■650 4▼aTransportation
■690 ▼a0800
■690 ▼a0748
■690 ▼a0544
■690 ▼a0607
■690 ▼a0348
■690 ▼a0709
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g86-05A.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164893▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
Preview
Export
ChatGPT Discussion
AI Recommended Related Books
Подробнее информация.
- Бронирование
- не существует
- моя папка
- Первый запрос зрения
- Non-Book Loan Application
- Nighttime Book Loan Application
Available after logging in.


