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Overcoming the electroluminescence efficiency limitations of perovskite light-emitting diodes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Himchan | - |
dc.contributor.author | Jeong, Su-Hun | - |
dc.contributor.author | Park, Min-Ho | - |
dc.contributor.author | Kim, Young-Hoon | - |
dc.contributor.author | Wolf, Christoph | - |
dc.contributor.author | Lee, Chang-Lyoul | - |
dc.contributor.author | Heo, Jin Hyuck | - |
dc.contributor.author | Sadhanala, Aditya | - |
dc.contributor.author | Myoung, NoSoung | - |
dc.contributor.author | Yoo, Seunghyup | - |
dc.contributor.author | Im, Sang Hyuk | - |
dc.contributor.author | Friend, Richard H. | - |
dc.contributor.author | Lee, Tae-Woo | - |
dc.date.accessioned | 2023-03-27T05:21:17Z | - |
dc.date.available | 2023-03-27T05:21:17Z | - |
dc.date.created | 2020-04-08 | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | Science, Vol.350 No.6265, pp.1222-1225 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.uri | https://hdl.handle.net/10371/189810 | - |
dc.description.abstract | Organic-inorganic hybrid perovskites are emerging low-cost emitters with very high color purity, but their low luminescent efficiency is a critical drawback. We boosted the current efficiency (CE) of perovskite light-emitting diodes with a simple bilayer structure to 42.9 candela per ampere, similar to the CE of phosphorescent organic light-emitting diodes, with two modifications: We prevented the formation of metallic lead (Pb) atoms that cause strong exciton quenching through a small increase in methylammonium bromide (MABr) molar proportion, and we spatially confined the exciton in uniform MAPbBr3 nanograins (average diameter = 99.7 nanometers) formed by a nanocrystal pinning process and concomitant reduction of exciton diffusion length to 67 nanometers. These changes caused substantial increases in steady-state photoluminescence intensity and efficiency of MAPbBr(3) nanograin layers. | - |
dc.language | 영어 | - |
dc.publisher | American Association for the Advancement of Science | - |
dc.title | Overcoming the electroluminescence efficiency limitations of perovskite light-emitting diodes | - |
dc.type | Article | - |
dc.identifier.doi | 10.1126/science.aad1818 | - |
dc.citation.journaltitle | Science | - |
dc.identifier.wosid | 000365700500069 | - |
dc.identifier.scopusid | 2-s2.0-84948953788 | - |
dc.citation.endpage | 1225 | - |
dc.citation.number | 6265 | - |
dc.citation.startpage | 1222 | - |
dc.citation.volume | 350 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Lee, Tae-Woo | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | ORGANOMETAL HALIDE PEROVSKITE | - |
dc.subject.keywordPlus | PERFORMANCE SOLAR-CELLS | - |
dc.subject.keywordPlus | INTERFACIAL CONTROL | - |
dc.subject.keywordPlus | HYBRID PEROVSKITE | - |
dc.subject.keywordPlus | TRIHALIDE | - |
dc.subject.keywordPlus | DEPOSITION | - |
dc.subject.keywordPlus | DIFFUSION | - |
dc.subject.keywordPlus | CRYSTALS | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | PB | - |
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