Highly Efficient and Stable Sn-Rich Perovskite Solar Cells by Introducing Bromine
DC Field | Value | Language |
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dc.contributor.author | Lee, Seojun | - |
dc.contributor.author | Kang, Dong-Won | - |
dc.date.accessioned | 2024-07-18T02:01:15Z | - |
dc.date.available | 2024-07-18T02:01:15Z | - |
dc.date.issued | 2017-07 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.issn | 1944-8252 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/74913 | - |
dc.description.abstract | Compositional engineering of recently arising methylammonium (MA) lead (Pb) halide based perovskites is an essential approach for finding better perovskite compositions to resolve still remaining issues of toxic Pb, long-term instability, etc. In this work, we carried out crystallographic, morphological, optical, and photovoltaic characterization of compositional MASn(0.6)Pb(0.4)I(3-x)Br(x) by gradually introducing bromine (Br) into parental Pb-Sn binary perovskite (MASn(0.6)Pb(0.4)I(3)) to elucidate its function in Sn-rich (Sn:Pb = 6:4) perovskites. We found significant advances in crystallinity and dense coverage of the perovskite films by inserting the Br into Sn-rich perovskite lattice. Furthermore, light-intensity dependent open circuit voltage (V-oc,) measurement revealed much suppressed trap-assisted recombination for a proper Br-added (x = 0.4) device. These contributed to attaining the unprecedented power conversion efficiency of 12.1% and V-oc of 0.78 V, which are, to the best of our knowledge, the highest performance in the Sn-rich (>= 60%) perovskite solar cells reported so far. In addition, impressive enhancement of photocurrent-output stability and little hysteresis were found, which paves the way for the development of environmentally benign (Pb reduction), stable monolithic tandem cells using the developed low band gap (1.24-1.26 eV) MASn(0.6)Pb(0.4)I(3-x)Br(x) with suggested composition (x = 0.2-0.4). | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Highly Efficient and Stable Sn-Rich Perovskite Solar Cells by Introducing Bromine | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsami.7b04011 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.9, no.27, pp 22432 - 22439 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000405764700036 | - |
dc.identifier.scopusid | 2-s2.0-85023752344 | - |
dc.citation.endPage | 22439 | - |
dc.citation.number | 27 | - |
dc.citation.startPage | 22432 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 9 | - |
dc.type.docType | Article | - |
dc.publisher.location | 미국 | - |
dc.subject.keywordAuthor | perovskite | - |
dc.subject.keywordAuthor | lead reduction | - |
dc.subject.keywordAuthor | Pb reduction | - |
dc.subject.keywordAuthor | Sn-rich | - |
dc.subject.keywordAuthor | bromine | - |
dc.subject.keywordAuthor | solar cell | - |
dc.subject.keywordPlus | LEAD-FREE | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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