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DC Field | Value | Language |
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dc.citation.number | 29 | - |
dc.citation.startPage | 202300693 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 33 | - |
dc.contributor.author | Hu, Manman | - |
dc.contributor.author | Risqi, Andi Muhammad | - |
dc.contributor.author | Wu, Jianchang | - |
dc.contributor.author | Chen, Liang | - |
dc.contributor.author | Park, Jaewang | - |
dc.contributor.author | Lee, Seung-Un | - |
dc.contributor.author | Yun, Hyun-Sung | - |
dc.contributor.author | Park, Byung-Wook | - |
dc.contributor.author | Brabec, Christoph J. | - |
dc.contributor.author | Seok, Sang Il | - |
dc.date.accessioned | 2023-12-21T11:54:31Z | - |
dc.date.available | 2023-12-21T11:54:31Z | - |
dc.date.created | 2023-05-08 | - |
dc.date.issued | 2023-07 | - |
dc.description.abstract | Improving the performance, reproducibility, and stability of Sn-based perovskite solar cells (PSCs) with n-i-p structures is an important challenge. Spiro-OMeTAD [2,2 ',7,7 '-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9 '-spirobifluorene], a hole transporting material (HTM) with n-i-p structure, requires the oxygen exposure after addition of Li-TFSI [Lithium bis(trifluoromethanesulfonyl)imide] as a dopant to increase the hole concentration. In Sn-based PSC, Sn2+ is easily oxidized to Sn4+ under such a condition, resulting in a sharp decrease in efficiency. Herein, a formamidinium tin triiodide (FASnI(3))-based PSCs fabricated using DPI-TPFB [4-Isopropyl-4 '-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate] instead of Li-TFSI are reported as a dopant in Spiro-OMeTAD. The DPI-TPFB enables the fabrication of PSCs with an efficiency of up to 10.9%, the highest among FASnI(3)-based PSCs with n-i-p structures. Moreover, approximate to 80% of the initial efficiency is maintained even after 1,597 h under maximum power point tracking conditions. In particular, the encapsulated device does not show any decrease in efficiency even after holding for 50 h in the 85 degrees C/85% RH condition. The high efficiency and excellent stability of PSCs prepared by doping with DPI-TPFB are attributed to not only increasing electrical conductivity by acting as a Lewis acid, but also stabilizing Sn2+ through coordination with Sn2+ on the surface of FASnI(3). | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.33, no.29, pp.202300693 | - |
dc.identifier.doi | 10.1002/adfm.202300693 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.scopusid | 2-s2.0-85151971472 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64255 | - |
dc.identifier.wosid | 000962644600001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Highly Stable n-i-p Structured Formamidinium Tin Triiodide Solar Cells through the Stabilization of Surface Sn2+ Cations | - |
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; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | efficiency | - |
dc.subject.keywordAuthor | new dopants | - |
dc.subject.keywordAuthor | n-i-p structure | - |
dc.subject.keywordAuthor | oxidation | - |
dc.subject.keywordAuthor | pure tin perovskite | - |
dc.subject.keywordAuthor | Spiro-OMeTAD | - |
dc.subject.keywordAuthor | stability | - |
dc.subject.keywordPlus | HOLE-TRANSPORTING MATERIAL | - |
dc.subject.keywordPlus | SPIRO-OMETAD LAYER | - |
dc.subject.keywordPlus | PEROVSKITE | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | MIGRATION | - |
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