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Amorphous (lysine)<sub>2</sub>PbI<sub>2</sub> layer enhanced perovskite photovoltaics
Zhejiang Univ, Peoples R China; Soochow Univ, Peoples R China.
Zhejiang Univ, Peoples R China; Soochow Univ, Peoples R China.
Huaneng Clean Energy Res Inst, Peoples R China.
Xian Univ Architecture & Technol, Peoples R China.
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2024 (English)In: Nature Communications, E-ISSN 2041-1723, Vol. 15, no 1, article id 7085Article in journal (Refereed) Published
Abstract [en]

Passivation materials play a crucial role in a wide range of high-efficiency, high-stability photovoltaic applications based on crystalline silicon and state-of-the-art perovskite materials. Currently, for perovskite photovoltaic, the mainstream passivation strategies routinely rely on crystalline materials. Herein, we have invented a new amorphous (lysine)(2)PbI2 layer-enhanced halide perovskite. By utilizing a solid phase reaction between PbI2 and lysine molecule, an amorphous (lysine)(2)PbI2 layer is formed at surface/grain boundaries in the perovskite films. The amorphous (lysine)2PbI(2) with fewer dangling bonds can effectively neutralize surface/interface defects, achieving an impressive efficiency of 26.27% (certified 25.94%). Moreover, this amorphous layer not only reduces crystal lattice stress but also functions as a barrier against the decomposition of organic components, leading to suppressed de-structuring of perovskite and highly stable perovskite solar cells.
Place, publisher, year, edition, pages
NATURE PORTFOLIO , 2024. Vol. 15, no 1, article id 7085
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-207162DOI: 10.1038/s41467-024-51551-yISI: 001292889100012PubMedID: 39154032OAI: oai:DiVA.org:liu-207162DiVA, id: diva2:1894712
Note

Funding Agencies|National Science Fund for Excellent Young Scholars (Overseas); Top Talent Project of West Lake Pearl Project; National Natural Science Foundation of China [52302315]; Talent project of ZJU-Hangzhou Global Scientific and Technological Innovation Center [02170000-K02013017]; National Natural Science Foundation of China [61721005]; China Huaneng Group Key RD Program [HNKJ22-H104]; Natural Science Foundation Program of Shaanxi Province [2023-JC-QN-0143]; European Union [956270]; Gusu Innovation and Entrepreneurship Leading Talent Program [ZXL2023188]; Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices [Z221311]; Suzhou Key Laboratory of Functional Nano & Soft Materials, Collaborative Innovation Center of Suzhou Nano Science& Technology, the 111 Project

Available from: 2024-09-03 Created: 2024-09-03 Last updated: 2024-09-03

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