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 | 2022-03-08T06:40:06Z | - |
dc.date.available | 2022-03-08T06:40:06Z | - |
dc.date.created | 2021-07-13 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.issn | 2380-8195 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/110741 | - |
dc.description.abstract | Bandtail broadening originating from increasing the polydispersity of colloidal quantum dots (CQDs) deteriorates opencircuit voltage (V-OC) 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 V-OC (1.27 V) among the fully inorganic CsPbI3-Pe-CQD solar cells reported so far. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | Acs Energy Letters | - |
dc.title | Monodisperse Perovskite Colloidal Quantum Dots Enable High-Efficiency Photovoltaics | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsenergylett.1c00462 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Acs Energy Letters, v.6, no.6, pp.2229 - 2237 | - |
dc.identifier.wosid | 000662227100024 | - |
dc.citation.endPage | 2237 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 2229 | - |
dc.citation.title | Acs Energy Letters | - |
dc.citation.volume | 6 | - |
dc.contributor.affiliatedAuthor | Lim, Seyeong | - |
dc.contributor.affiliatedAuthor | Yun, Sunhee | - |
dc.contributor.affiliatedAuthor | Park, Taiho | - |
dc.identifier.scopusid | 2-s2.0-85108071373 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | PASSIVATION | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | STRATEGY | - |
dc.subject.keywordPlus | CDSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.