Efficient and Stable Perovskite Solar Cells and Modules Enabled by Tailoring Additive Distribution According to the Film Growth Dynamics

IF 26.6 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2024-10-15 DOI:10.1007/s40820-024-01538-7

Mengen Ma, Cuiling Zhang, Yujiao Ma, Weile Li, Yao Wang, Shaohang Wu, Chong Liu, Yaohua Mai

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Abstract

Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in blade-coating method. In this work, we found these two pre-crystallization processes lead to different order of crystallization dynamics within the perovskite thin film, resulting in the differences of additive distribution. We then tailor-designed an additive molecule named 1,3-bis(4-methoxyphenyl)thiourea to obtain films with fewer defects and holes at the buried interface, and prepared perovskite solar cells with a certified efficiency of 23.75%. Furthermore, this work also demonstrates an efficiency of 20.18% for the large-area perovskite solar module (PSM) with an aperture area of 60.84 cm². The PSM possesses remarkable continuous operation stability for maximum power point tracking of T₉₀ > 1000 h in ambient air.

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根据薄膜生长动力学调整添加剂分布，实现高效稳定的 Perovskite 太阳能电池和组件

气体淬火和真空淬火工艺被广泛应用于刀片镀膜法中加速溶剂挥发以诱导包晶成核。在这项工作中，我们发现这两种预结晶过程会导致包晶体薄膜内部结晶动力学顺序的不同，从而导致添加剂分布的差异。随后，我们定制设计了一种名为 1,3-双（4-甲氧基苯基）硫脲的添加剂分子，以获得埋藏界面上缺陷和空穴较少的薄膜，并制备出认证效率为 23.75% 的过氧化物太阳能电池。此外，这项工作还证明了孔径面积为 60.84 平方厘米的大面积过氧化物太阳能模块（PSM）的效率为 20.18%。PSM 在环境空气中的最大功率点跟踪时间为 T90 > 1000 小时，具有出色的连续运行稳定性。

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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.