Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Seyeong | - |
dc.contributor.author | Lee, Gyudong | - |
dc.contributor.author | Han, Sanghun | - |
dc.contributor.author | Kim, Jigeon | - |
dc.contributor.author | Yun, Sunhee | - |
dc.contributor.author | Lim, Jongchul | - |
dc.contributor.author | Pu, Yong Jin | - |
dc.contributor.author | Ko, Min Jae | - |
dc.contributor.author | Park, Taiho | - |
dc.contributor.author | Choi, Jongmin | - |
dc.contributor.author | Kim, Younghoon | - |
dc.date.accessioned | 2021-10-08T02:30:15Z | - |
dc.date.available | 2021-10-08T02:30:15Z | - |
dc.date.created | 2021-06-24 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.issn | 2380-8195 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/15446 | - |
dc.description.abstract | Bandtail broadening originating from increasing the polydispersity of colloidal quantum dots (CQDs) deteriorates open-circuit voltage (VOC) and hinders charge-carrier transport in CQD photovoltaics. The development of colloidal synthetic routes has enabled preparing monodisperse perovskite CQDs (Pe-CQDs) that have attracted attention as promising absorbers in CQD photovoltaics. However, polar-antisolvent-based purification induces the dissolution and agglomeration of Pe-CQDs, resulting in an irregular size distribution. Consequently, the photovoltaic performance decreases because of the increase in Pe-CQD polydispersity. Here, we demonstrate the preparation of well-purified monodisperse CsPbI3-Pe-CQDs via size selection on the basis of gel permeation chromatography. Well-purified monodisperse Pe-CQDs exhibit improved photovoltaic performance and achieve a low Pe-CQD polydispersity. Furthermore, these Pe-CQDs show higher photoluminescence quantum yields, narrower full-widths at half-maximum, and lower Urbach energies, in comparison to irregular-sized Pe-CQDs without size selection. Therefore, CsPbI3-Pe-CQD solar cells comprising monodisperse Pe-CQDs show the highest power conversion efficiency (15.3%) and VOC (1.27 V) among the fully inorganic CsPbI3-Pe-CQD solar cells reported so far. © 2021 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Monodisperse Perovskite Colloidal Quantum Dots Enable High-Efficiency Photovoltaics | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsenergylett.1c00462 | - |
dc.identifier.wosid | 000662227100024 | - |
dc.identifier.scopusid | 2-s2.0-85108071373 | - |
dc.identifier.bibliographicCitation | ACS Energy Letters, v.6, no.6, pp.2229 - 2237 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordPlus | Photovoltaic performance | - |
dc.subject.keywordPlus | Power conversion efficiencies | - |
dc.subject.keywordPlus | Size selection | - |
dc.subject.keywordPlus | Synthetic routes | - |
dc.subject.keywordPlus | Perovskite solar cells | - |
dc.subject.keywordPlus | Semiconductor quantum dots | - |
dc.subject.keywordPlus | Sols | - |
dc.subject.keywordPlus | Volcanic rocks | - |
dc.subject.keywordPlus | Carrier transport | - |
dc.subject.keywordPlus | Photoluminescence quantum yields | - |
dc.subject.keywordPlus | Colloidal quantum dots | - |
dc.subject.keywordPlus | Full widths at half maximums | - |
dc.subject.keywordPlus | High-efficiency | - |
dc.subject.keywordPlus | Conversion efficiency | - |
dc.subject.keywordPlus | Efficiency | - |
dc.subject.keywordPlus | Gel permeation chromatography | - |
dc.subject.keywordPlus | Ion beams | - |
dc.subject.keywordPlus | Lead compounds | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordPlus | Open circuit voltage | - |
dc.subject.keywordPlus | Perovskite | - |
dc.subject.keywordPlus | Purification | - |
dc.subject.keywordPlus | Quantum chemistry | - |
dc.subject.keywordPlus | Quantum efficiency | - |
dc.citation.endPage | 2237 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 2229 | - |
dc.citation.title | ACS Energy Letters | - |
dc.citation.volume | 6 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry; Electrochemistry; Energy & Fuels; Science & Technology - Other Topics; Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Electrochemistry; Energy & Fuels; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.type.docType | Article | - |
There are no files associated with this item.