Dual passivation in air for constructing high-efficiency wide-bandgap perovskite solar cell modules

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-06-13 DOI:10.1063/5.0270217

Xuefeng Xu, Bingchen He, Zhenhuang Su, Kanrui Jiang, Xiaoting Wang, Qinglong Jiang, Lin Yang, Jianwei Yang, Xingyu Gao, Jiren Yuan, Linfeng Lu

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引用次数: 0

Abstract

Wide-bandgap perovskites (WB-PVKs) are highly promising materials for tandem photovoltaic applications, yet their practical performance is significantly hindered by critical issues such as non-radiative recombination and photo-induced phase segregation. Herein, we report a dual-passivation strategy utilizing phenylethylammonium chloride (PEACl) and 1,3-diaminopropane dihydroiodide (PDADI) to simultaneously enhance crystallinity and reduce defect density in 1.68 eV WB-PVK films. The passivation layers were fabricated via a scalable doctor-blading technique under ambient conditions, achieving power conversion efficiencies exceeding 16% over a large active area of 64.624 cm2. PEACl and PDADI together reduced surface defects, suppressed 2D-phase formation, and increased grain size from 450 to 850 nm. Moreover, the defect density at the perovskite/electron transport layer interface decreased by approximately 27%, leading to a notable enhancement in device efficiency from ∼15% up to a maximum of 16.05%. These results demonstrate that the developed dual-passivation method effectively addresses both photovoltaic performance and phase stability issues, providing a scalable and industrially viable approach toward the fabrication of high-efficiency wide-bandgap perovskite solar modules.

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空气双钝化制备高效宽禁带钙钛矿太阳能电池组件

宽带隙钙钛矿（WB-PVKs）是极具前景的串联光伏材料，但其实际性能受到非辐射复合和光致相偏析等关键问题的严重阻碍。本文报道了一种利用苯乙基氯化铵（PEACl）和1,3-二氨基丙烷二氢碘化物（PDADI）的双钝化策略，可以同时提高1.68 eV的wh - pvk薄膜的结晶度和降低缺陷密度。钝化层是通过可扩展的医生叶片技术在环境条件下制造的，在64.624 cm2的大有源面积上实现了超过16%的功率转换效率。PEACl和PDADI共同减少了表面缺陷，抑制了2d相的形成，并将晶粒尺寸从450 nm增加到850 nm。此外，钙钛矿/电子传输层界面处的缺陷密度降低了约27%，导致器件效率显著提高，从~ 15%提高到最高16.05%。这些结果表明，所开发的双钝化方法有效地解决了光伏性能和相稳定性问题，为制造高效宽禁带钙钛矿太阳能组件提供了一种可扩展和工业上可行的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.