Understanding the Decoupled Effects of Cations and Anions Doping for High-Performance Perovskite Solar Cells

IF 36.3 1区材料科学 Q1 Engineering Nano-Micro Letters Pub Date : 2025-02-14 DOI:10.1007/s40820-025-01655-x

Tianxiang Hu, Yixi Wang, Kai Liu, Jia Liu, Haoyang Zhang, Qudrat Ullah Khan, Shijie Dai, Weifan Qian, Ruochen Liu, Yanyan Wang, Chongyuan Li, Zhenru Zhang, Mingxiang Luo, Xiaofei Yue, Chunxiao Cong, Yuan Yongbo, Anran Yu, Jia Zhang, Yiqiang Zhan

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Abstract

Highlights

Alkaline earth cations are successfully incorporated into perovskite lattice with the aid of sulfonic acid anions, while alkaline earth metal halides are lack of doping capacity.
The sulfonic acid anions effectively regulate the crystallization of perovskite and passivate the metallic Pb₀ defect states, thereby improving the power conversion efficiency of perovskite solar cells.
By comparing the property of FACF₃SO₃ and Ca(CF₃SO₃)₂-doped perovskite films, the impact of suppressing halide migration with an activation energy of 1.246 eV is attributed to Ca₂₊ cations, thus providing methodology for decoupling the effects of cations and anions.

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了解阳离子和阴离子掺杂对高性能钙钛矿太阳能电池的去耦效应

碱土阳离子在磺酸阴离子的帮助下成功地融入到钙钛矿晶格中，而碱土金属卤化物缺乏掺杂能力。磺酸阴离子有效调节钙钛矿的结晶，钝化金属Pb0缺陷态，从而提高钙钛矿太阳能电池的功率转换效率。通过比较FACF3SO3和Ca(CF3SO3)2掺杂钙钛矿薄膜的性能，发现激活能为1.246 eV的抑制卤化物迁移的影响归因于Ca2+阳离子，从而为阳离子和阴离子的解耦效应提供了方法。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.