DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kim, Do Hyun | - |
dc.contributor.advisor | 김도현 | - |
dc.contributor.author | Go, Eun Young | - |
dc.date.accessioned | 2022-04-21T19:31:26Z | - |
dc.date.available | 2022-04-21T19:31:26Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=949005&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/295347 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2021.2,[vi, 42 p. :] | - |
dc.description.abstract | Lead halide perovskite (LHP) has drawn attentions in the optoelectronic field because of its outstanding properties, such as facile bandgap tunability, strong luminescence, and a narrow full width at half-maximum. However, the application of LHP is still limited due to poor stability, especially under exposure to water. In this work, we report a simple strategy of encapsulating $MAPbBr_{3}$ perovskites with lead sulfate by introducing the sulfuric acid solution. The synthesized $MAPbBr_{3}$ perovskites were reacted with sulfate ions and encapsulated with lead sulfate matrix. The bright green-emitting perovskite maintained its luminescence in the liquid water for months because the lead sulfate is water-insoluble. The photoluminescence quantum yield of encapsulated LHPs was remarkably increased from 2.6% up to 80.52 %, and the narrow full width at half-maximum was reduced from 28 nm to 20 nm under the optimized conditions. This study can promote the practical applications of perovskite by solving the water instability issues by matrix encapsulation with lead sulfate. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | lead halide perovskite▼aMAPbBr3▼amatrix encapsulation▼aphotoluminescence▼awater stability▼alead sulfate | - |
dc.subject | 납 할로겐화 페로브스카이트▼aMAPbBr3▼a매트릭스 캡슐화▼a광발광▼a물 안정성▼a황산납 | - |
dc.title | Enhancement of photoluminescence and water stability of MAPbBr3 perovskite by lead sulfate encapsulation | - |
dc.title.alternative | 황산납 캡슐화를 통한 MAPbBr3 페로브스카이트의 광발광 및 물 안정성 향상에 대한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
dc.contributor.alternativeauthor | 고은영 | - |
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