Two-step growth of CsPbI3-xBrx films employing dynamic CsBr treatment: toward all-inorganic perovskite photovoltaics with enhanced stability
DC Field | Value | Language |
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dc.contributor.author | Parida, Bhaskar | - |
dc.contributor.author | Ryu, Jun | - |
dc.contributor.author | Yoon, Saemon | - |
dc.contributor.author | Lee, Seojun | - |
dc.contributor.author | Seo, Yejin | - |
dc.contributor.author | Cho, Jung Sang | - |
dc.contributor.author | Kang, Dong-Won | - |
dc.date.available | 2019-08-30T02:57:24Z | - |
dc.date.issued | 2019-08 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.issn | 2050-7496 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/36390 | - |
dc.description.abstract | Recently, CsPbI3-xBrx (x = 1-2) all-inorganic perovskites have been studied to overcome the phase instability of CsPbI3. However, the addition of Br inevitably leads to a bandgap that is too wide (1.93-2.03 eV) compared to that of CsPbI3 (1.73 eV). To avoid this, the present study focuses on developing stable alpha-CsPbI3-xBrx (x < 0.7) perovskite films with lower Br levels. Our dynamic CsBr treatment incorporates Br- into the CsPbI3 lattice, greatly enhancing the morphology, optical properties, stability, and photovoltaic performance of the resultant CsPbI3-xBrx (x < 0.7) perovskite films. At x = 0.66, the perovskite film with the relatively low bandgap of 1.84 eV contributes to achieving an impressive power conversion efficiency (PCE) of 14.08% and, after 1200 h storage under a nitrogen atmosphere without encapsulation, the PCE remains at around 70% of this initial level. This two-step growth using dynamic CsBr treatment opens up promising routes for the feasible fabrication of inorganic perovskite photovoltaics with exceptional stability. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Two-step growth of CsPbI3-xBrx films employing dynamic CsBr treatment: toward all-inorganic perovskite photovoltaics with enhanced stability | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/c9ta05948b | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.7, no.31, pp 18488 - 18498 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000479056700029 | - |
dc.identifier.scopusid | 2-s2.0-85070411871 | - |
dc.citation.endPage | 18498 | - |
dc.citation.number | 31 | - |
dc.citation.startPage | 18488 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 7 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordPlus | LEAD HALIDE PEROVSKITES | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | ALPHA-CSPBI3 | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | STABILIZATION | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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