Journal Article10.1002/adma.202301684
Engineering Amorphous-crystallized Interface of ZrNx Barriers for Stable Perovskite Solar Cells.
Mengqi Xiao,Guizhou Yuan,Ziheng Lu,Jing Xia,Dong Li,Ying Chen,Yuqing Zhang,Fengtao Pei,Changli Chen,Yang Bai,Tinglu Song,Jie Dou,Yujing Li,Yihua Chen,Zipeng Xu,Xiaoyan Yang,Xingyu Liu,Cheng Zhu,Qi Chen +18 more
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TL;DR: In this paper , ZrNx barrier films with high amorphization were introduced in perovskite solar cells and quantified the amorphous-crystalline (a-c) density.
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Abstract: It is challenging to achieve long-term stability of perovskite solar cells due to the corrosion and diffusion of metal electrodes. Integration of compact barriers into devices has been recognized as an effective strategy to protect the perovskite absorber and electrode. However, the difficulty is to construct a thin layer of a few nanometers that can delay ion migration and impede chemical reactions simultaneously, in which delicate microstructure design of a stable material plays an important role. Herein, ZrNx barrier films with high amorphization were introduced in perovskite solar cells. To quantify the amorphous-crystalline (a-c) density, we employed pattern recognition techniques for the first time. We found the decreasing (a-c) interface in an amorphous film lead to dense atom arrangement and uniform distribution of chemical potential, which retards the interdiffusion at the interface between ions and metal atoms and protect the electrodes from corrosion. The resultant solar cells exhibited an improved operational stability, which retained 88% of initial efficiency after continuous maximum power point tracking under 1-Sun illumination at room temperature (25 ˚C) for 1500 hours. This article is protected by copyright. All rights reserved.
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Key Roles of Interfaces in Inverted Metal-Halide Perovskite Solar Cells.
TL;DR: Interface engineering plays a key role in improving the performance and stability of inverted metal-halide perovskite solar cells. Interface engineering approaches, such as interlayer design, surface modification, and defect passivation, have significantly enhanced the performance and durability of IPSCs.
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TL;DR: Annual research review of Perovskite Solar Cells in 2023 summarizes the latest research advancements in the field, covering various classifications and key findings.
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