High-Voltage and Green-Emitting Perovskite Quantum Dot Solar Cells via Solvent Miscibility-Induced Solid-State Ligand Exchange
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Sinyoung | - |
dc.contributor.author | Kim, Jigeon | - |
dc.contributor.author | Jeong, Soon Moon | - |
dc.contributor.author | Ko, Min Jae | - |
dc.contributor.author | Lee, Jong-Soo | - |
dc.contributor.author | Kim, Younghoon | - |
dc.date.accessioned | 2021-08-03T02:54:38Z | - |
dc.date.available | 2021-08-03T02:54:38Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2020-10 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32747 | - |
dc.description.abstract | Advances in surface chemistry and manipulation of CsPbI3 perovskite quantum dots (PQDs) have enabled the replacement of native long-chain ligands with short-chain ligands, leading to their photovoltaic applications; however, there are no reports on those of wide-bandgap and green-emitting CsPbBr3 PQDs that are promising in high-voltage and colorful buildingintegrated photovoltaics. Binding energies required for ligand adsorption/desorption alter according to halide compositions of PQDs because of different soft/hard acid/base interactions, and therefore, the surface ligand-exchange process for CsPbBr3 PQDs should be developed. Herein, we demonstrate the utilization of CsPbBr3 PQDs in green light-emitting solar cells with a high opencircuit voltage (VOC) of 1.6 V, realized via solvent miscibilityinduced ligand exchange. Carboxylate esters with different alkyl chain lengths are used; longer carboxylate esters show high miscibility with hydrophobic substances, leading to more efficient ligand exchange with preserving CsPbBr3 PQD size but at the same time undesired less film thickness because of the stripping-out of as-cast CsPbBr3 PQDs. Based on these results, we devise a suitably optimized solvent mixture of carboxylate esters to enable efficient ligand exchange with suppressed stripping-out phenomena. Therefore, the resultant CsPbBr3 PQD solids show a power conversion efficiency of 4.23% and a VOC of similar to 1.6 V with green electroluminescence under applied voltage. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | High-Voltage and Green-Emitting Perovskite Quantum Dot Solar Cells via Solvent Miscibility-Induced Solid-State Ligand Exchange | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ko, Min Jae | - |
dc.identifier.doi | 10.1021/acs.chemmater.0c02102 | - |
dc.identifier.scopusid | 2-s2.0-85096538006 | - |
dc.identifier.wosid | 000586787900006 | - |
dc.identifier.bibliographicCitation | CHEMISTRY OF MATERIALS, v.32, no.20, pp.8808 - 8818 | - |
dc.relation.isPartOf | CHEMISTRY OF MATERIALS | - |
dc.citation.title | CHEMISTRY OF MATERIALS | - |
dc.citation.volume | 32 | - |
dc.citation.number | 20 | - |
dc.citation.startPage | 8808 | - |
dc.citation.endPage | 8818 | - |
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 | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | ALPHA-CSPBI3 PEROVSKITE | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE | - |
dc.subject.keywordPlus | HALIDE CSPBX3 | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | BR | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | CL | - |
dc.subject.keywordPlus | LUMINESCENCE | - |
dc.subject.keywordPlus | BRIGHT | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.chemmater.0c02102 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.