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Fundamental Investigations of the Interactions Between Hybrid Perovskites and Amine Vapors
Fundamental Investigations of the Interactions Between Hybrid Perovskites and Amine Vapors
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151157
- ISBN
- 9798382720982
- DDC
- 540
- 서명/저자
- Fundamental Investigations of the Interactions Between Hybrid Perovskites and Amine Vapors
- 발행사항
- [Sl] : The University of North Carolina at Chapel Hill, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 111 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
- 주기사항
- Advisor: Cahoon, James.
- 학위논문주기
- Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
- 초록/해제
- 요약Herein we present the results of a series of investigations on the interactions of hybrid perovskites with amine vapors. Building upon previous work with the deliquescence of methylammonium lead iodide with methylamine, we show that this phenomenon extends to the layered Ruddlesden-Popper variety of hybrid perovskites. Further, we report that hybrid perovskites undergo a chemical transformation when exposed to a vapor environment of mixed amine composition, resulting in the formation of a layered perovskite whose stoichiometry and structure are determined by the exact composition of the amine atmosphere. Furthermore, we performed fundamental investigations into the deliquescent behavior of hybrid perovskites with amine vapor via in situ quartz crystal microbalance measurements, showing that the perovskites proceed step-wise through a crystalline intermediate en route to full solvation. We simulated the structure of this intermediate for methylammonium lead iodide via density functional theory and corroborated the result with X-ray diffraction measurements. We also showed that changes in dissipation of the quartz crystal can be detected when an adhered methylammonium lead iodide layer was exposed to amine vapor atmospheres with varying composition, providing an indirect measure of the ratio of incorporated amines, a proxy for the ammonium cation ratio in the films that dictates structure and optoelectronic properties. Finally, we report on initial efforts to leverage these vapor interactions in attempts to grow bulk single crystals and single crystal thin films of methylammonium lead iodide.
- 일반주제명
- Chemistry
- 일반주제명
- Physical chemistry
- 일반주제명
- Materials science
- 일반주제명
- Inorganic chemistry
- 키워드
- Crystal growth
- 키워드
- Deliquescence
- 키워드
- Perovskite
- 키워드
- Vapor
- 기타저자
- The University of North Carolina at Chapel Hill Chemistry
- 기본자료저록
- Dissertations Abstracts International. 85-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211151157
■006m o d
■007cr#unu||||||||
■020 ▼a9798382720982
■035 ▼a(MiAaPQ)AAI31236698
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a540
■1001 ▼aSerafin, Lorenzo Young.
■24510▼aFundamental Investigations of the Interactions Between Hybrid Perovskites and Amine Vapors
■260 ▼a[Sl]▼bThe University of North Carolina at Chapel Hill▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a111 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-11, Section: B.
■500 ▼aAdvisor: Cahoon, James.
■5021 ▼aThesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
■520 ▼aHerein we present the results of a series of investigations on the interactions of hybrid perovskites with amine vapors. Building upon previous work with the deliquescence of methylammonium lead iodide with methylamine, we show that this phenomenon extends to the layered Ruddlesden-Popper variety of hybrid perovskites. Further, we report that hybrid perovskites undergo a chemical transformation when exposed to a vapor environment of mixed amine composition, resulting in the formation of a layered perovskite whose stoichiometry and structure are determined by the exact composition of the amine atmosphere. Furthermore, we performed fundamental investigations into the deliquescent behavior of hybrid perovskites with amine vapor via in situ quartz crystal microbalance measurements, showing that the perovskites proceed step-wise through a crystalline intermediate en route to full solvation. We simulated the structure of this intermediate for methylammonium lead iodide via density functional theory and corroborated the result with X-ray diffraction measurements. We also showed that changes in dissipation of the quartz crystal can be detected when an adhered methylammonium lead iodide layer was exposed to amine vapor atmospheres with varying composition, providing an indirect measure of the ratio of incorporated amines, a proxy for the ammonium cation ratio in the films that dictates structure and optoelectronic properties. Finally, we report on initial efforts to leverage these vapor interactions in attempts to grow bulk single crystals and single crystal thin films of methylammonium lead iodide.
■590 ▼aSchool code: 0153.
■650 4▼aChemistry
■650 4▼aPhysical chemistry
■650 4▼aMaterials science
■650 4▼aInorganic chemistry
■653 ▼aCrystal growth
■653 ▼aDeliquescence
■653 ▼aPerovskite
■653 ▼aQuartz crystal microbalance
■653 ▼aRuddlesden-Popper
■653 ▼aVapor
■690 ▼a0485
■690 ▼a0794
■690 ▼a0494
■690 ▼a0488
■71020▼aThe University of North Carolina at Chapel Hill▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g85-11B.
■790 ▼a0153
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161070▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
