DC Field | Value | Language |
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dc.contributor.author | MIN, HO PARK | - |
dc.contributor.author | Jeong, S.-H. | - |
dc.contributor.author | Seo, H.-K. | - |
dc.contributor.author | CHRISTOPH, WOLF | - |
dc.contributor.author | Kim, Y.-H. | - |
dc.contributor.author | Kim, H. | - |
dc.contributor.author | Byun, J. | - |
dc.contributor.author | Kim, J.S. | - |
dc.contributor.author | Cho, H. | - |
dc.contributor.author | LEE, TAE WOO | - |
dc.date.accessioned | 2018-07-16T09:41:58Z | - |
dc.date.available | 2018-07-16T09:41:58Z | - |
dc.date.created | 2017-12-21 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/91972 | - |
dc.description.abstract | Organic-inorganic halide perovskite light emitting diode (PeLED) as a narrow band emitter is an emerging research field. To overcome limited electroluminescence efficiency of PeLEDs, trap-assisted non-radiative recombination in polycrystalline perovskite films should be reduced and the electron-hole balance in the PeLEDs must be improved. In this work, we investigated a practical way to effectively overcome above-mentioned issues by unravelling additive-based nanocrystal pinning (A-NCP) process using the carefully controlled electron transporting organic material solutions diluted in a volatile non-polar solvent. We found that without affecting the intrinsic crystal structure, A-NCP improved the radiative recombination rate by reducing effective defect density at grain boundaries due to the defect healing effect. Moreover, it induced the improved electron-hole balance in the dominantly p-type CH3NH3PbBr3 based PeLEDs, leading to the highest efficiency of 8.79% ever reported to date among organic-inorganic halide perovskite-based green PeLEDs. Therefore, our work gives the effective approaches for efficient PeLEDs from the investigations of the role of A-NCP incorporating a tiny amount of an electron transporting molecule as an additive to increase radiative recombination rate of polycrystalline perovskite films. ? 2017 Elsevier Ltd | - |
dc.language | English | - |
dc.publisher | Elsevier BV | - |
dc.relation.isPartOf | Nano Energy | - |
dc.title | Unravelling additive-based nanocrystal pinning for high efficiency organic-inorganic halide perovskite light-emitting diodes | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.nanoen.2017.10.012 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Nano Energy, v.42, pp.157 - 165 | - |
dc.identifier.wosid | 000418344200019 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 165 | - |
dc.citation.startPage | 157 | - |
dc.citation.title | Nano Energy | - |
dc.citation.volume | 42 | - |
dc.contributor.affiliatedAuthor | MIN, HO PARK | - |
dc.contributor.affiliatedAuthor | CHRISTOPH, WOLF | - |
dc.contributor.affiliatedAuthor | Kim, H. | - |
dc.contributor.affiliatedAuthor | LEE, TAE WOO | - |
dc.identifier.scopusid | 2-s2.0-85032890167 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 10 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HYBRID PEROVSKITE | - |
dc.subject.keywordPlus | SINGLE-CRYSTALS | - |
dc.subject.keywordPlus | ELECTRON | - |
dc.subject.keywordPlus | DIFFUSION | - |
dc.subject.keywordPlus | LENGTHS | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | SEMICONDUCTORS | - |
dc.subject.keywordPlus | CH3NH3PBI3 | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordAuthor | Organic-inorganic halide perovskite | - |
dc.subject.keywordAuthor | Perovskite light emitting diodes | - |
dc.subject.keywordAuthor | Polycrystalline perovskite film | - |
dc.subject.keywordAuthor | Additive | - |
dc.subject.keywordAuthor | Electron injection efficiency | - |
dc.subject.keywordAuthor | Defect healing effect | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
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 | - |
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