Molecularly Engineered Alicyclic Organic Spacers for 2D/3D Hybrid Tin‐based Perovskite Solar Cells
Abstract: The high defect density and inferior crystallinity remain great hurdles for developing highly efficient and stable Sn‐based perovskite solar cells (PSCs). 2D/3D heterostructures show strong potential to overcome these bottlenecks; however, a limited diversity of organic spacers has hindered further improvement. Herein, a novel alicyclic organic spacer, morpholinium iodide (MPI), is reported for developing structurally stabilized 2D/3D perovskite. Introducing a secondary ammonium and ether group to alicyclic spacers in 2D perovskite enhances its rigidity, which leads to increased hydrogen bonding and intermolecular interaction within 2D perovskite. These strengthened interactions facilitate the formation of highly oriented 2D/3D perovskite with low structural disorder, which leads to effective passivation of Sn and I defects. Consequently, the MP‐based PSCs achieved a power conversion efficiency (PCE) of 12.04% with superior operational and oxidative stability. This work presents new insight into the design of organic spacers for highly efficient and stable Sn‐based PSCs.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Molecularly Engineered Alicyclic Organic Spacers for 2D/3D Hybrid Tin‐based Perovskite Solar Cells ; day:03 ; month:09 ; year:2024 ; extent:11
Small ; (03.09.2024) (gesamt 11)
- Creator
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Choi, Jinhyeok
Kim, Jimin
Jeong, Minyoung
Park, Byeongchan
Kim, Seunghyun
Park, Jisang
Cho, Kilwon
- DOI
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10.1002/smll.202405598
- URN
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urn:nbn:de:101:1-2409041428312.816785684739
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:28 AM CEST
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Associated
- Choi, Jinhyeok
- Kim, Jimin
- Jeong, Minyoung
- Park, Byeongchan
- Kim, Seunghyun
- Park, Jisang
- Cho, Kilwon
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