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DC Field | Value | Language |
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dc.citation.endPage | 17953 | - |
dc.citation.number | 47 | - |
dc.citation.startPage | 17945 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Shin, Yun Seop | - |
dc.contributor.author | Yoon, Yung Jin | - |
dc.contributor.author | Adhikari, Aniruddha | - |
dc.contributor.author | Cho, Hye Won | - |
dc.contributor.author | Song, Taehee | - |
dc.contributor.author | Park, Chan Beom | - |
dc.contributor.author | Son, Jung Geon | - |
dc.contributor.author | Kim, Gi-Hwan | - |
dc.contributor.author | Kwon, Oh Hoon | - |
dc.contributor.author | Kim, Jin Young | - |
dc.date.accessioned | 2023-12-21T13:14:12Z | - |
dc.date.available | 2023-12-21T13:14:12Z | - |
dc.date.created | 2022-12-05 | - |
dc.date.issued | 2022-12 | - |
dc.description.abstract | Electroluminescence efficiencies of deep-blue quasi-two-dimensional (quasi-2D) perovskites are limited by a lack of post-treatment strategies that can both construct an ideal energy-transfer tunnel structure minimizing the exciton losses and passivate chlorine vacancies. Herein, multi-functional halide post-exchange is demonstrated for fabricating efficient deep-blue quasi-2D perovskite light-emitting diodes (PeLEDs). This post-treatment suppresses detrimental chlorine vacancies in the perovskite lattice, resulting in an efficient deep-blue perovskite emitter. Synergistically, the spontaneous phase rearrangement occurs via merging between neighboring low-n phases to higher-n phases. The narrowed 2D phase distribution enhances excitonic-energy transfer to the target bulk phase with fewer energy transfer steps, each of which is accompanied by adverse energy loss by exciton dissociation. Efficient deep-blue PeLEDs with a maximum external quantum efficiency of 4.97% are realized, emitting at 470 nm. Device lifetimes are also elongated as a synergetic benefit. This work provides an effective approach as a step closer to designing high-performance deep-blue PeLEDs for practical applications. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY C, v.10, no.47, pp.17945 - 17953 | - |
dc.identifier.doi | 10.1039/d2tc04025e | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.scopusid | 2-s2.0-85142775617 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/60102 | - |
dc.identifier.wosid | 000890576200001 | - |
dc.language | 영어 | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Phase rearrangement for minimal exciton loss in a quasi-2D perovskite toward efficient deep-blue LEDs via halide post-treatment | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary;Physics, Applied | - |
dc.relation.journalResearchArea | Materials Science;Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ANION-EXCHANGE | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | PASSIVATION | - |
dc.subject.keywordPlus | BR | - |
dc.subject.keywordPlus | CL | - |
dc.subject.keywordPlus | LUMINESCENT | - |
dc.subject.keywordPlus | CSPBX3 | - |
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