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The influence of secondary solvents on the morphology of a spiro-MeOTAD hole transport layer for lead halide perovskite solar cells
https://oist.repo.nii.ac.jp/records/953
https://oist.repo.nii.ac.jp/records/95322d51afa-283b-4dfe-a004-4a2da0909e8e
名前 / ファイル | ライセンス | アクション |
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manuscript (5.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-06-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | The influence of secondary solvents on the morphology of a spiro-MeOTAD hole transport layer for lead halide perovskite solar cells | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Ono, Luis K
× Ono, Luis K× Hawash, Zafer× Juarez-Perez, Emilio J× Qiu, Longbin× Jiang, Yan× Qi, Yabing |
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書誌情報 |
en : Journal of Physics D: Applied Physics 巻 51, 号 29, p. 294001, 発行日 2018-06-27 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 2,2 ',7,7 '-tetrakis(N,N-di-p-methoxyphenylamine)-9,9 '-spirobifluorene (spiro-MeOTAD) has been widely employed as a hole transport layer (HTL) in perovskite-based solar cells. Despite high efficiencies, issues have been reported regarding solution processed spiro-MeOTAD HTL such as pinholes and the strong dependence of electrical properties upon air exposure, which poses challenges for solar cell stability and reproducibility. In this work, we perform a systematic study to unravel the fundamental mechanisms for the generation of pinholes in solution-processed spiro-MeOTAD films. The formation of pinholes is closely related to the presence of small amounts of secondary solvents (e.g. H2O, 2-methyl-2-butene or amylene employed as a stabilizer, absorbed moisture from ambient, etc), which have low miscibility in the primary solvent generally used to dissolve spiro-MeOTAD (e.g. chlorobenzene). The above findings are not only applicable for spiro-MeOTAD (a small organic molecule), but also applicable to polystyrene (a polymer). The influence of secondary solvents in the primary solvents is the main cause for the generation of pinholes on film morphology. Our findings are of direct relevance for the reproducibility and stability in perovskite solar cells and can be extended to many other spin-coated or drop-casted thin films. | |||||
出版者 | ||||||
出版者 | IOP Publishing Ltd | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-3727 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1361-6463 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1088/1361-6463/aacb6e | |||||
権利 | ||||||
権利情報 | © 2018 IOP Publishing Ltd | |||||
権利 | ||||||
権利情報 | This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics D: Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6463/aacb6e | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://iopscience.iop.org/article/10.1088/1361-6463/aacb6e/meta | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |