Graded heterojunction of perovskite/dopant-free polymeric hole-transport layer for efficient and stable metal halide perovskite devices
DC Field | Value | Language |
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dc.contributor.author | Li, Zijia | - |
dc.contributor.author | Park, Jaehong | - |
dc.contributor.author | Park, Hansol | - |
dc.contributor.author | Lee, Jongmin | - |
dc.contributor.author | Kang, Yeongkwon | - |
dc.contributor.author | Ahn, Tae Kyu | - |
dc.contributor.author | Kim, Bong-Gi | - |
dc.contributor.author | Park, Hui Joon | - |
dc.date.accessioned | 2021-07-30T05:05:29Z | - |
dc.date.available | 2021-07-30T05:05:29Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2020-12 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2821 | - |
dc.description.abstract | Solution-processed polycrystalline perovskite films possess numerous imperfections in their surface and grain boundary, limiting their solar cell performance and stability. To attain a full thermodynamic potential from the device along with high stability, an efficient passivation strategy that can suppress those imperfections, inducing a trap-assisted charge recombination and a defect-initiated crystal decomposition, is needed. Herein, we demonstrate a perovskite/dopant-free polymer hole-transport material (HTM) graded heterojunction (GHJ), maximizing their intermolecular interactions that can passivate under-coordinated lead cations in perovskite and immobilize its volatile organic cations by forming Lewis-adducts and hydrogen bonds. For this purpose, a series of polymer HTMs, containing defect-healable and cross-linkable functional units, are newly designed. By composing a GHJ structure, it is confirmed the perovskite crystallinity increases with reduced trap-density, enhancing built-in potential of the solar cell device and thus decreasing carrier recombination, and its heat-, water-, and light-resistibility are enhanced. Consequently, superior optoelectronic properties, providing efficiencies of 22.1% (0.096 cm(2)) and 20.0% (1 cm(2)) with a V-oc of 1.22 V having only 0.37 V V-oc loss, and stability, preserving 92% of the initial efficiency after 500 h of light-illumination (AM 1.5G 100 mWcm(-2) without UV-cut) in ambient air without encapsulation, are attained with the GHJ n-i-p devices. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.title | Graded heterojunction of perovskite/dopant-free polymeric hole-transport layer for efficient and stable metal halide perovskite devices | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Hui Joon | - |
dc.identifier.doi | 10.1016/j.nanoen.2020.105159 | - |
dc.identifier.scopusid | 2-s2.0-85088816738 | - |
dc.identifier.wosid | 000595909600004 | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.78, pp.1 - 14 | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 78 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 14 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
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, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | EXCITON BINDING-ENERGY | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | DOPANT-FREE | - |
dc.subject.keywordPlus | EFFECTIVE MASSES | - |
dc.subject.keywordPlus | VOLTAGE DECAY | - |
dc.subject.keywordPlus | METHYLAMMONIUM | - |
dc.subject.keywordPlus | PASSIVATION | - |
dc.subject.keywordPlus | AREA | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ELIMINATION | - |
dc.subject.keywordAuthor | Perovskite solar cells | - |
dc.subject.keywordAuthor | Graded heterojunction | - |
dc.subject.keywordAuthor | Dopant-free polymeric hole-transport layer | - |
dc.subject.keywordAuthor | Defect passivation | - |
dc.subject.keywordAuthor | Device stability | - |
dc.subject.keywordAuthor | High efficiency | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S2211285520307370?via%3Dihub | - |
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