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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 11658 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 11650 | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 145 | - |
dc.contributor.author | Tsuji, Masatake | - |
dc.contributor.author | Sasase, Masato | - |
dc.contributor.author | Iimura, Soshi | - |
dc.contributor.author | Kim, Junghwan | - |
dc.contributor.author | Hosono, Hideo | - |
dc.date.accessioned | 2023-12-21T12:40:01Z | - |
dc.date.available | 2023-12-21T12:40:01Z | - |
dc.date.created | 2023-05-17 | - |
dc.date.issued | 2023-05 | - |
dc.description.abstract | Blue-emitting Cs3Cu2I5 has attracted attention owing to its near-unity PL quantum yield and applications in DUV photodetectors and scintillators. Its PL properties originate from the unique local structure around the luminescent center, the [Cu2I5]3– polyhedron iodocuprate anion consisting of the edge-shared CuI3 triangle and the CuI4 tetrahedron dimer, which is isolated by Cs+ ions. We found that solid-state reactions between CsI and CuI occur near room temperature (RT) to form Cs3Cu2I5 and/or CsCu2I3 phases. High-quality thin films of these phases were obtained by the sequential deposition of CuI and CsI by thermal evaporation. We elucidated that the formation of interstitial Cu+ and the antisite of I– at the Cs+ site in the CsI crystal through Cu+ and I– diffusion results in the RT synthesis of Cs3Cu2I5. The unique structure formation of the luminescent center was revealed using a model based on the low packing density of the CsCl-type crystal structure, similar sizes of Cs+ and I– ions, and the high diffusivity of Cu+. The self-aligned patterning of the luminous regions on thin films was demonstrated. | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.145, no.21, pp.11650 - 11658 | - |
dc.identifier.doi | 10.1021/jacs.3c01713 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.scopusid | 2-s2.0-85160725264 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64354 | - |
dc.identifier.wosid | 001008858800001 | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society | - |
dc.title | Room-Temperature Solid-State Synthesis of Cs3Cu2I5 Thin Films and Formation Mechanism for Its Unique Local Structure | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE QUANTUM YIELD | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURES | - |
dc.subject.keywordPlus | IONIC CONDUCTIVITIES | - |
dc.subject.keywordPlus | TERNARY DERIVATIVES | - |
dc.subject.keywordPlus | COPPER MONOHALIDES | - |
dc.subject.keywordPlus | PEROVSKITE | - |
dc.subject.keywordPlus | PHASES | - |
dc.subject.keywordPlus | SILVER | - |
dc.subject.keywordPlus | BR | - |
dc.subject.keywordPlus | CL | - |
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