Solvent-Free MACl Post-Treatment Using Close-Spaced Sublimation Method for Dry-Processed Perovskite Solar Cells

IF 6 3区工程技术 Q2 ENERGY & FUELS Solar RRL Pub Date : 2025-02-14 DOI:10.1002/solr.202400859

Youngmin Kim, Dowon Pyun, Wonkyu Lee, Seok-Hyun Jeong, Sangwon Lee, Sujin Cho, Jiyeon Nam, Jiseong Hwang, Jihyun Jang, Jae-Keun Hwang, Yoonmook Kang, Donghwan Kim, Hae-Seok Lee

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Abstract

This study introduces a solvent-free close-spaced sublimation (CSS) method for both perovskite conversion and post-treatment. A PbI₂ layer is deposited via thermal evaporation and subsequently converted into MAPbI₃ using CSS of Methylammonium iodide powder. The resulting MAPbI₃ layer is further passivated with MACl powder using the identical CSS method. Through this post-treatment, it is possible to improve the quality of the perovskite layer, leading to a decrease of defect density and enhancing photovoltaic performances. As a result, device efficiency improves from 14.6% to 16.4%, with notable increases in J _sc and V _oc, along with a reduction in hysteresis. The potential of this solvent-free CSS method is demonstrated, making it a promising approach for large-scale manufacturing of perovskite and tandem solar cells.

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采用近距升华法对干法包晶太阳能电池进行无溶剂 MACl 后处理

本研究介绍了一种无溶剂近距离升华（CSS）方法，用于钙钛矿转化和后处理。通过热蒸发沉积PbI2层，然后使用甲基碘化铵粉末CSS将其转化为MAPbI3。得到的MAPbI3层使用相同的CSS方法进一步用MACl粉钝化。通过这种后处理，可以提高钙钛矿层的质量，从而降低缺陷密度，提高光伏性能。结果，器件效率从14.6%提高到16.4%，jsc和voc显著增加，同时迟滞减少。这种无溶剂CSS方法的潜力被证明，使其成为大规模制造钙钛矿和串联太阳能电池的有前途的方法。

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来源期刊

Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

12.10

自引率

6.30%

发文量

460

期刊介绍： Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.

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