Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 3301 | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 9 | - |
dc.contributor.author | Park, Byung-wook | - |
dc.contributor.author | Kedem, Nir | - |
dc.contributor.author | Kulbak, Michael | - |
dc.contributor.author | Lee, Do Yoon | - |
dc.contributor.author | Yang, Woon Seok | - |
dc.contributor.author | Jeon, Nam Joong | - |
dc.contributor.author | Seo, Jangwon | - |
dc.contributor.author | Kim, Geonhwa | - |
dc.contributor.author | Kim, Ki Jeong | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Hodes, Gary | - |
dc.contributor.author | Cahen, David | - |
dc.contributor.author | Seok, Sang Il | - |
dc.date.accessioned | 2023-12-21T20:20:03Z | - |
dc.date.available | 2023-12-21T20:20:03Z | - |
dc.date.created | 2018-08-30 | - |
dc.date.issued | 2018-08 | - |
dc.description.abstract | The presence of excess lead iodide in halide perovskites has been key for surpassing 20% photon-to-power conversion efficiency. To achieve even higher power conversion efficiencies, it is important to understand the role of remnant lead iodide in these perovskites. To that end, we explored the mechanism facilitating this effect by identifying the impact of excess lead iodide within the perovskite film on charge diffusion length, using electron-beam-induced current measurements, and on film formation properties, from grazing-incidence wide-angle X-ray scattering and high-resolution transmission electron microscopy. Based on our results, we propose that excess lead iodide in the perovskite precursors can reduce the halide vacancy concentration and lead to formation of azimuthal angle-oriented cubic alpha-perovskite crystals in-between 0 degrees and 90 degrees. We further identify a higher perovskite carrier concentration inside the nanostructured titanium dioxide layer than in the capping layer. These effects are consistent with enhanced lead iodide-rich perovskite solar cell performance and illustrate the role of lead iodide. | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.9, pp.3301 | - |
dc.identifier.doi | 10.1038/s41467-018-05583-w | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.scopusid | 2-s2.0-85051648676 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/24736 | - |
dc.identifier.url | https://www.nature.com/articles/s41467-018-05583-w | - |
dc.identifier.wosid | 000441865600006 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Understanding how excess lead iodide precursor improves halide perovskite solar cell performance | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | PBI2 | - |
dc.subject.keywordPlus | PASSIVATION | - |
dc.subject.keywordPlus | FILMS | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.