DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Seyeong | - |
dc.contributor.author | Kim, Jigeon | - |
dc.contributor.author | Park, Jin Young | - |
dc.contributor.author | Min, Jihyun | - |
dc.contributor.author | Yun, Sunhee | - |
dc.contributor.author | Park, Taiho | - |
dc.contributor.author | Kim, Younghoon | - |
dc.contributor.author | Choi, Jongmin | - |
dc.date.accessioned | 2021-06-01T02:09:07Z | - |
dc.date.available | 2021-06-01T02:09:07Z | - |
dc.date.created | 2021-02-24 | - |
dc.date.issued | 2021-02 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/105190 | - |
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 (CI@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 CI@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 CI@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%). | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.title | Suppressed Degradation and Enhanced Performance of CsPbI3 Perovskite Quantum Dot Solar Cells via Engineering of Electron Transport Layers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsami.0c15484 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.13, no.5, pp.6119 - 6129 | - |
dc.identifier.wosid | 000619638400020 | - |
dc.citation.endPage | 6129 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 6119 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 13 | - |
dc.contributor.affiliatedAuthor | Lim, Seyeong | - |
dc.contributor.affiliatedAuthor | Min, Jihyun | - |
dc.contributor.affiliatedAuthor | Yun, Sunhee | - |
dc.contributor.affiliatedAuthor | Park, Taiho | - |
dc.identifier.scopusid | 2-s2.0-85100657158 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
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.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
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