Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Lim, Sung Jun | - |
dc.contributor.author | Kim, Jigeon | - |
dc.contributor.author | Park, Jin Young | - |
dc.contributor.author | Min, Jung-wook | - |
dc.contributor.author | Yun, Seokjin | - |
dc.contributor.author | Park, Taiho | - |
dc.contributor.author | Kim, Younghoon | - |
dc.contributor.author | Choi, Jongmin | - |
dc.date.accessioned | 2021-04-29T14:30:02Z | - |
dc.date.available | 2021-04-29T14:30:02Z | - |
dc.date.created | 2021-03-02 | - |
dc.date.issued | 2021-02 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/13500 | - |
dc.description.abstract | CsPbI3 perovskite quantum dots (CsPbI3-PQDs) have recently come into focus as a light-harvesting material that can act as a platform through which to combine the material advantages of both perovskites and QDs. However, the low cubic-phase stability of CsPbI3-PQDs in ambient conditions has been recognized as a factor that inhibits device stability. TiO2 nanoparticles are the most regularly used materials as an electron transport layer (ETL) in CsPbI3-PQD photovoltaics; however, we found that TiO2 can facilitate the cubic-phase degradation of CsPbI3-PQDs due to its vigorous photocatalytic activity. To address these issues, we have developed chloride-passivated SnO2 QDs (Cl@SnO2 QDs), which have low photocatalytic activity and few surface traps, to suppress the cubic-phase degradation of CsPbI3-PQDs. Given these advantages, the CsPbI3-PQD solar cells based on Cl@SnO2 ETLs show significantly improved device operational stability (under conditions of 50% relative humidity and 1-sun illumination), compared to those based on TiO2 ETLs. In addition, the Cl@SnO2-based devices showed improved open circuit voltage and photocurrent density, resulting in enhanced power conversion efficiency (PCE) up to 14.5% compared to that of TiO2-based control devices (PCE of 13.8%). © 2021 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Suppressed Degradation and Enhanced Performance of CsPbI3Perovskite Quantum Dot Solar Cells via Engineering of Electron Transport Layers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsami.0c15484 | - |
dc.identifier.wosid | 000619638400020 | - |
dc.identifier.scopusid | 2-s2.0-85100657158 | - |
dc.identifier.bibliographicCitation | ACS Applied Materials & Interfaces, v.13, no.5, pp.6119 - 6129 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordAuthor | CsPbI3 perovskite quantum dots | - |
dc.subject.keywordAuthor | colloidal quantum dots | - |
dc.subject.keywordAuthor | phase stability | - |
dc.subject.keywordAuthor | solar cells | - |
dc.subject.keywordAuthor | electron transport layers | - |
dc.subject.keywordPlus | Nanostructured materials | - |
dc.subject.keywordPlus | Open circuit voltage | - |
dc.subject.keywordPlus | Perovskite | - |
dc.subject.keywordPlus | Photocatalytic activity | - |
dc.subject.keywordPlus | Photocurrents | - |
dc.subject.keywordPlus | Quantum chemistry | - |
dc.subject.keywordPlus | Semiconductor quantum dots | - |
dc.subject.keywordPlus | Solar cells | - |
dc.subject.keywordPlus | TiO2 nanoparticles | - |
dc.subject.keywordPlus | Titanium dioxide | - |
dc.subject.keywordPlus | Ambient conditions | - |
dc.subject.keywordPlus | Device stability | - |
dc.subject.keywordPlus | Electron transport layers | - |
dc.subject.keywordPlus | Light-harvesting | - |
dc.subject.keywordPlus | Operational stability | - |
dc.subject.keywordPlus | Photocurrent density | - |
dc.subject.keywordPlus | Power conversion efficiencies | - |
dc.subject.keywordPlus | Quantum dot solar cells | - |
dc.subject.keywordPlus | Lead compounds | - |
dc.subject.keywordPlus | Cell engineering | - |
dc.subject.keywordPlus | Chlorine compounds | - |
dc.subject.keywordPlus | Conversion efficiency | - |
dc.subject.keywordPlus | Electron transport properties | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.citation.endPage | 6129 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 6119 | - |
dc.citation.title | ACS Applied Materials & Interfaces | - |
dc.citation.volume | 13 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.type.docType | Article | - |
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