A deconvoluted PL approach to probe the charge carrier dynamics of the grain interior and grain boundary of a perovskite film for perovskite solar cell applications
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Al Mamun, Abdullah | - |
dc.contributor.author | Ava, Tanzila Tasnim | - |
dc.contributor.author | Jeong, Hyeon Jun | - |
dc.contributor.author | Jeong, Mun Seok | - |
dc.contributor.author | Namkoong, Gon | - |
dc.date.accessioned | 2022-07-14T07:24:47Z | - |
dc.date.available | 2022-07-14T07:24:47Z | - |
dc.date.created | 2021-05-14 | - |
dc.date.issued | 2017-04 | - |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152523 | - |
dc.description.abstract | We explore a new characterization approach capable of probing the grain interior (GI) and grain boundary (GB) of a CH3NH3PbI3-xClx perovskite thin film. In particular, we have found that the photoluminescence (PL) spectrum observed for a CH3NH3PbI3-xClx perovskite thin film is asymmetric, and can be deconvoluted using a bi-Gaussian function, representing the ordered and disordered phases of the perovskite film. In order to understand the origin of the ordered and disordered phases of the perovskite film, two-dimensional (2D) PL mapping was performed to resolve the PL spectra at the nanoscale level. Quantitative analysis of the local PL spectra revealed that the ordered phase originated from the GIs while the disordered phase mainly came from the GBs. In particular, power-dependent PL measurements of the deconvoluted PL spectra revealed that smaller grained perovskites showed defect-mediated recombination at GBs but exciton-like transitions at GIs. In contrast, perovskite films with large grains followed an excellent power law, showing exciton-like recombination at both GIs and GBs. As expected, perovskite solar cells fabricated with large grains showed an increased efficiency with higher light absorption and higher charge extraction efficiency. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | A deconvoluted PL approach to probe the charge carrier dynamics of the grain interior and grain boundary of a perovskite film for perovskite solar cell applications | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jeong, Mun Seok | - |
dc.identifier.doi | 10.1039/C7CP01140G | - |
dc.identifier.scopusid | 2-s2.0-85019937365 | - |
dc.identifier.wosid | 000399004700058 | - |
dc.identifier.bibliographicCitation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.19, no.13, pp.9143 - 9148 | - |
dc.relation.isPartOf | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.citation.title | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.citation.volume | 19 | - |
dc.citation.number | 13 | - |
dc.citation.startPage | 9143 | - |
dc.citation.endPage | 9148 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Physics, Atomic, Molecular & Chemical | - |
dc.subject.keywordPlus | HALIDE PEROVSKITES | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | TRIHALIDE | - |
dc.subject.keywordPlus | IMPACT | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2017/CP/C7CP01140G | - |
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.