Reversible Halide Exchange Reaction of Organometal Trihalide Perovskite Colloidal Nanocrystals for Full-Range Band Gap Tuning
DC Field | Value | Language |
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dc.contributor.author | Jang, Dong Myung | - |
dc.contributor.author | Park, Kidong | - |
dc.contributor.author | Kim, Duk Hwan | - |
dc.contributor.author | Park, Jeunghee | - |
dc.contributor.author | Shojaei, Fazel | - |
dc.contributor.author | Kang, Hong Seok | - |
dc.contributor.author | Ahn, Jae-Pyung | - |
dc.contributor.author | Lee, Jong Woon | - |
dc.contributor.author | Song, Jae Kyu | - |
dc.date.accessioned | 2021-09-04T13:50:05Z | - |
dc.date.available | 2021-09-04T13:50:05Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-08 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/92858 | - |
dc.description.abstract | In recent years, methylammonium lead halide (MAPbX(3), where X = Cl, Br, and I) perovskites have attracted tremendous interest caused by their outstanding photovoltaic performance. Mixed halides have been frequently used as the active layer of solar cells, as a result of their superior physical properties as compared to those of traditionally used pure iodide. Herein, we report a remarkable finding of reversible halide-exchange reactions of MAPbX(3), which facilitates the synthesis of a series of mixed halide perovskites. We synthesized MAPbBr(3) plate-type nanocrystals (NCs) as a starting material by a novel solution reaction using octylamine as the capping ligand. The synthesis of MAPbBr(3-x)Cl(x) and MAPbBr(3-x)I(x) NCs was achieved by the halide exchange reaction of MAPbBr(3) with MACl and MAI, respectively, in an isopropyl alcohol solution, demonstrating full-range band gap tuning over a wide range (1.6-3 eV). Moreover, photodetectors were fabricated using these composition-tuned NCs; a strong correlation was observed between the photocurrent and photoluminescence decay time. Among the two mixed halide perovskite series, those with I-rich composition (x = 2), where a sole tetragonal phase exists without the incorporation of a cubic phase, exhibited the highest photoconversion efficiency. To understand the composition-dependent photoconversion efficiency, first-principles density-functional theory calculations were carried out, which predicted many plausible configurations for cubic and tetragonal phase mixed halides. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | SOLAR-CELLS | - |
dc.subject | OPTICAL-PROPERTIES | - |
dc.subject | CH3NH3PBX3 X | - |
dc.subject | IODIDE | - |
dc.subject | PHOTODETECTORS | - |
dc.subject | NANOWIRES | - |
dc.subject | LENGTHS | - |
dc.title | Reversible Halide Exchange Reaction of Organometal Trihalide Perovskite Colloidal Nanocrystals for Full-Range Band Gap Tuning | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Jeunghee | - |
dc.identifier.doi | 10.1021/acs.nanolett.5b01430 | - |
dc.identifier.scopusid | 2-s2.0-84939222336 | - |
dc.identifier.wosid | 000359613700051 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.15, no.8, pp.5191 - 5199 | - |
dc.relation.isPartOf | NANO LETTERS | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 15 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 5191 | - |
dc.citation.endPage | 5199 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | CH3NH3PBX3 X | - |
dc.subject.keywordPlus | IODIDE | - |
dc.subject.keywordPlus | PHOTODETECTORS | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | LENGTHS | - |
dc.subject.keywordAuthor | Perovskite | - |
dc.subject.keywordAuthor | nanocrystals | - |
dc.subject.keywordAuthor | anion exchange reaction | - |
dc.subject.keywordAuthor | composition tuning | - |
dc.subject.keywordAuthor | photodetectors | - |
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