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DC Field | Value | Language |
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dc.citation.endPage | 5611 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 5604 | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 19 | - |
dc.contributor.author | Park, Byung-wook | - |
dc.contributor.author | Lee, Dong Uk | - |
dc.contributor.author | Jung, Daesung | - |
dc.contributor.author | Yang, Woon Seok | - |
dc.contributor.author | Thi Kim Oanh Vu | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Baik, Jaeyoon | - |
dc.contributor.author | Hwang, Chan-Cuk | - |
dc.contributor.author | Kim, Eun Kyu | - |
dc.contributor.author | Seok, Sang Il | - |
dc.date.accessioned | 2023-12-21T18:49:32Z | - |
dc.date.available | 2023-12-21T18:49:32Z | - |
dc.date.created | 2019-09-06 | - |
dc.date.issued | 2019-08 | - |
dc.description.abstract | Because the power conversion efficiency (PCE) of hybrid halide perovskite solar cells (PSCs) could exceed 24%, extensive research has been focused on improving their long-term stability for commercialization in the near future. In a previous study, we reported that the addition of a number of ionized iodide (triiodide: I-3(-)) ions during perovskite film formation significantly improved the efficiency of PSCs by reducing deep-level defects in the perovskite layer. Understanding the relationship between the concentration of these defects and the long-term chemical aging of PSCs is important not only for obtaining fundamental insight into the perovskite materials but also for studying the long-term chemical stability of PSCs. Herein we aim to identify the origin of the natural decay in PCE during long-term chemical aging of PSCs in the dark based on formamidinium lead triiodide by comparing the performance of control and low-defect (LD) devices. After aging for 200 days, the change in the PCE of the LD devices (1.3%) was found to be half that of the control devices (2.6%). We investigated this difference using grazing incidence wide-angle X-ray scattering, deep level transient spectroscopy, scanning photoelectron microscopy, and high-resolution photoemission spectroscopy. The addition of I-3(-) was found to reduce the amounts of hydroxide and O-x in the halide perovskites (HPs), affecting the migration of defects and the structural transformation of the HPs. | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.19, no.8, pp.5604 - 5611 | - |
dc.identifier.doi | 10.1021/acs.nanolett.9b02142 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.scopusid | 2-s2.0-85070561814 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/27825 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.nanolett.9b02142 | - |
dc.identifier.wosid | 000481563800101 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Long-Term Chemical Aging of Hybrid Halide Perovskites | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Hybrid perovskite | - |
dc.subject.keywordAuthor | defect migration | - |
dc.subject.keywordAuthor | GIWAXS | - |
dc.subject.keywordAuthor | DLTS | - |
dc.subject.keywordAuthor | SPEM | - |
dc.subject.keywordAuthor | HRPES | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | CH3NH3PBI3 PEROVSKITE | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | IMPACT | - |
dc.subject.keywordPlus | STATES | - |
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