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Development and Fabrication of High Efficiency N-Type Tunnel Oxide Passivated Silicon Solar Cells with APCVD, ION Implanted, and BBr3 Boron Emitters
Development and Fabrication of High Efficiency N-Type Tunnel Oxide Passivated Silicon Solar Cells with APCVD, ION Implanted, and BBr3 Boron Emitters
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105529
- ISBN
- 9798263345426
- DDC
- 546.73
- 저자명
- Madani, Keeya.
- 서명/저자
- Development and Fabrication of High Efficiency N-Type Tunnel Oxide Passivated Silicon Solar Cells with APCVD, ION Implanted, and BBr3 Boron Emitters
- 발행사항
- [Sl] : Georgia Institute of Technology, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 223 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Rohatgi, Ajeet.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2025.
- 초록/해제
- 요약The quality and availability of energy dictate the standard of living, but recent increase in energy consumption, primarily from fossil fuels, has led to significant CO2 emissions and climate change concerns. Earth temperature has already risen by ~1°C since 1950 and is projected to increase by 2.6°C by 2050 unless renewable energy sources are adopted. Among various options available today, photovoltaics (PV) is the most promising candidate due to its safety, scalability, and ability to directly convert virtually unlimited sunlight into electricity with minimal environmental impact. Over the past 15 years, PV module costs have dropped dramatically from ~$3/W to ~¢20/W, with global installations reaching ~1 TW in 2022 and projected to exceed 5 TW by 2030. However, PV currently accounts for only ~5% of electricity generation globally.To make PV the most widespread and cost-effective energy source, the U.S. Department of Energy has set a target to lower the levelized cost of electricity (LCOE) from PV to ≤ ¢3/kWh by 2030, which is about a factor of two cheaper than the average cost of electricity from fossil fuels. Achieving this requires advancements in PV module efficiency, degradation rates, lifetime, and cost. Silicon solar cells, which is the focus of this research, currently account for ~95% of PV modules produced and are well-suited to meet this target with further R&D and low-cost manufacturing.This research focuses on developing low-cost, high-efficiency (~23%) n-type silicon solar cells, using tunnel oxide passivated contacts (TOPCon) in combination with optimized boron-doped emitters, for cell performance enhancement without appreciably increasing cost. Introduction of TOPCon, featuring an ultra-thin tunnel oxide capped with doped polysilicon, significantly reduces recombination losses to enhance cell efficiency without introducing cost. At the start of this research, TOPCon cells were regarded as an emerging technology and laboratory curiosity, but now it commands 20% market share, projected to reach 60% by 2030.This thesis involves solar cell modelling and design, technology developments, fabrication, and characterization of commercial ready n-TOPCon solar cells. Furthermore, this thesis outlines a roadmap to improve our starting n-type baseline p+/n/n+ PERT cell efficiency from 20.5% to 23% by optimizing boron emitters on the front, implementing n-TOPCon on the rear, and refining screen-printed metal contacts. Techniques such as APCVD, ion implantation, and BBr3 doping are used for B emitter formation, while chemical oxidation of Si for tunnel oxide and LPCVD polysilicon deposition are employed for n-TOPCon development. Several technology developments are made and integrated into process sequences to achieve four types of commercial ready n-TOPCon solar cells involving different B emitters, with efficiencies approaching or exceeding 23%. Device modelling in combination with detailed characterization of these cells is used to understand the loss mechanisms and create a new technology roadmap to push the TOPCon cell efficiencies towards 25% at low-cost, setting the foundation for making PV the cheapest source of electricity.Chapter 1 introduces the scope of this research and outlines the specific tasks to accomplish the goal of reaching 23% efficient n-TOPCon solar cells with an emphasis on modelling, characterization, and fabrication. Chapter 2 explains the basic operating principles of silicon solar cells and outlines the modelling, characterization tools, and methods used in this research for designing and analyzing the fabricated solar cells.
- 일반주제명
- Boron
- 일반주제명
- Silicon nitride
- 일반주제명
- Phosphorus
- 일반주제명
- Electricity
- 일반주제명
- Oxidation
- 일반주제명
- Fossil fuels
- 일반주제명
- High temperature
- 일반주제명
- Design
- 일반주제명
- Silicon wafers
- 일반주제명
- Heat
- 일반주제명
- Ion implantation
- 일반주제명
- Screen printing
- 일반주제명
- Energy consumption
- 일반주제명
- Technology
- 일반주제명
- Annealing
- 일반주제명
- Alternative energy
- 일반주제명
- Condensed matter physics
- 일반주제명
- Materials science
- 일반주제명
- Thermodynamics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017360458
■00520260202105529
■006m o d
■007cr#unu||||||||
■020 ▼a9798263345426
■035 ▼a(MiAaPQ)AAI32309810
■035 ▼a(MiAaPQ)GeorgiaTech77835
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a546.73
■1001 ▼aMadani, Keeya.
■24510▼aDevelopment and Fabrication of High Efficiency N-Type Tunnel Oxide Passivated Silicon Solar Cells with APCVD, ION Implanted, and BBr3 Boron Emitters
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a223 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Rohatgi, Ajeet.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2025.
■520 ▼aThe quality and availability of energy dictate the standard of living, but recent increase in energy consumption, primarily from fossil fuels, has led to significant CO2 emissions and climate change concerns. Earth temperature has already risen by ~1°C since 1950 and is projected to increase by 2.6°C by 2050 unless renewable energy sources are adopted. Among various options available today, photovoltaics (PV) is the most promising candidate due to its safety, scalability, and ability to directly convert virtually unlimited sunlight into electricity with minimal environmental impact. Over the past 15 years, PV module costs have dropped dramatically from ~$3/W to ~¢20/W, with global installations reaching ~1 TW in 2022 and projected to exceed 5 TW by 2030. However, PV currently accounts for only ~5% of electricity generation globally.To make PV the most widespread and cost-effective energy source, the U.S. Department of Energy has set a target to lower the levelized cost of electricity (LCOE) from PV to ≤ ¢3/kWh by 2030, which is about a factor of two cheaper than the average cost of electricity from fossil fuels. Achieving this requires advancements in PV module efficiency, degradation rates, lifetime, and cost. Silicon solar cells, which is the focus of this research, currently account for ~95% of PV modules produced and are well-suited to meet this target with further R&D and low-cost manufacturing.This research focuses on developing low-cost, high-efficiency (~23%) n-type silicon solar cells, using tunnel oxide passivated contacts (TOPCon) in combination with optimized boron-doped emitters, for cell performance enhancement without appreciably increasing cost. Introduction of TOPCon, featuring an ultra-thin tunnel oxide capped with doped polysilicon, significantly reduces recombination losses to enhance cell efficiency without introducing cost. At the start of this research, TOPCon cells were regarded as an emerging technology and laboratory curiosity, but now it commands 20% market share, projected to reach 60% by 2030.This thesis involves solar cell modelling and design, technology developments, fabrication, and characterization of commercial ready n-TOPCon solar cells. Furthermore, this thesis outlines a roadmap to improve our starting n-type baseline p+/n/n+ PERT cell efficiency from 20.5% to 23% by optimizing boron emitters on the front, implementing n-TOPCon on the rear, and refining screen-printed metal contacts. Techniques such as APCVD, ion implantation, and BBr3 doping are used for B emitter formation, while chemical oxidation of Si for tunnel oxide and LPCVD polysilicon deposition are employed for n-TOPCon development. Several technology developments are made and integrated into process sequences to achieve four types of commercial ready n-TOPCon solar cells involving different B emitters, with efficiencies approaching or exceeding 23%. Device modelling in combination with detailed characterization of these cells is used to understand the loss mechanisms and create a new technology roadmap to push the TOPCon cell efficiencies towards 25% at low-cost, setting the foundation for making PV the cheapest source of electricity.Chapter 1 introduces the scope of this research and outlines the specific tasks to accomplish the goal of reaching 23% efficient n-TOPCon solar cells with an emphasis on modelling, characterization, and fabrication. Chapter 2 explains the basic operating principles of silicon solar cells and outlines the modelling, characterization tools, and methods used in this research for designing and analyzing the fabricated solar cells.
■590 ▼aSchool code: 0078.
■650 4▼aBoron
■650 4▼aSilicon nitride
■650 4▼aPhosphorus
■650 4▼aElectricity
■650 4▼aOxidation
■650 4▼aFossil fuels
■650 4▼aHigh temperature
■650 4▼aChemical vapor deposition
■650 4▼aDesign
■650 4▼aSilicon wafers
■650 4▼aHeat
■650 4▼aIon implantation
■650 4▼aAlternative energy sources
■650 4▼aScreen printing
■650 4▼aEnergy consumption
■650 4▼aTechnology
■650 4▼aAnnealing
■650 4▼aAlternative energy
■650 4▼aCondensed matter physics
■650 4▼aMaterials science
■650 4▼aThermodynamics
■690 ▼a0389
■690 ▼a0363
■690 ▼a0611
■690 ▼a0794
■690 ▼a0348
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360458▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


