DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Seungjae | ko |
dc.contributor.author | Kim, Junho | ko |
dc.contributor.author | Kim, Hyojun | ko |
dc.contributor.author | Kim, Changwon | ko |
dc.contributor.author | Kim, Siin | ko |
dc.contributor.author | Kim, Changjo | ko |
dc.contributor.author | Lee, Heeseung | ko |
dc.contributor.author | Choi, Bongjun | ko |
dc.contributor.author | Muthu, Chinnadurai | ko |
dc.contributor.author | 김태현 | ko |
dc.contributor.author | Lee, Jihyung | ko |
dc.contributor.author | Lee, Seungbok | ko |
dc.contributor.author | Ihee, Hyotcherl | ko |
dc.contributor.author | Lee, Jung-Yong | ko |
dc.date.accessioned | 2024-09-11T07:00:17Z | - |
dc.date.available | 2024-09-11T07:00:17Z | - |
dc.date.created | 2024-09-11 | - |
dc.date.created | 2024-09-11 | - |
dc.date.issued | 2024-05 | - |
dc.identifier.citation | SCIENCE ADVANCES, v.10, no.20 | - |
dc.identifier.uri | http://hdl.handle.net/10203/322900 | - |
dc.description.abstract | Deep-blue perovskite light-emitting diodes (PeLEDs) of high purity are highly sought after for next-generation displays complying with the Rec. 2020 standard. However, mixed-halide perovskite materials designed for deep-blue emitters are prone to halide vacancies, which readily occur because of the low formation energy of chloride vacancies. This degrades bandgap instability and performance. Here, we propose a chloride vacancy-targeting passivation strategy using sulfonate ligands with different chain lengths. The sulfonate groups have a strong affinity for lead(II) ions, effectively neutralizing vacancies. Our strategy successfully suppressed phase segregation, yielding color-stable deep-blue PeLEDs with an emission peak at 461 nanometers and a maximum luminance (L max ) of 2707 candela per square meter with external quantum efficiency (EQE) of 3.05%, one of the highest for Rec. 2020 standard-compliant deep-blue PeLEDs. We also observed a notable increase in EQE up to 5.68% at L max of 1978 candela per square meter with an emission peak at 461 nanometers by changing the carbon chain length. | - |
dc.language | English | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.title | Brightening deep-blue perovskite light-emitting diodes: A path to Rec. 2020 | - |
dc.type | Article | - |
dc.identifier.wosid | 001226511700015 | - |
dc.identifier.scopusid | 2-s2.0-85193629968 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 20 | - |
dc.citation.publicationname | SCIENCE ADVANCES | - |
dc.identifier.doi | 10.1126/sciadv.adn8465 | - |
dc.contributor.localauthor | Lee, Heeseung | - |
dc.contributor.localauthor | Ihee, Hyotcherl | - |
dc.contributor.localauthor | Lee, Jung-Yong | - |
dc.contributor.nonIdAuthor | Choi, Bongjun | - |
dc.contributor.nonIdAuthor | Muthu, Chinnadurai | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | PASSIVATION | - |
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