Crystallization Kinetics of Perovskite Films by a Green Mixture Antisolvent for Efficient NiOx-Based Inverted Solar Cells,ACS Applied Materials & Interfaces

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Crystallization Kinetics of Perovskite Films by a Green Mixture Antisolvent for Efficient NiOx-Based Inverted Solar Cells
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-04-03 , DOI: 10.1021/acsami.4c02270
Zigan Yang ₁ , Jiahui Wei ₁ , Jianzha Zheng ₁ , Ziying Zhong ₁ , Huabin Du ₁ , Zhiling He ₁ , Liming Liu ₁ , Qiaoyan Ma ₁ , Xiaohui Yu ₂ , Yousheng Wang _{1,

3} , Hongbing Zhu _{1,

3} , Meixiu Wan _{1,

3} , Yaohua Mai _{1,

3}

Affiliation

Environment-friendly antisolvents are critical for obtaining highly efficient, reproducible, and sustainable perovskite solar cells (PSCs). Here, we introduced a green mixture antisolvent of ethyl acetate-isopropanol (EA/IPA) to finely regulate the crystal grain growth and related film properties, including the morphology, crystal structure, and chemical composition of the perovskite thin film. The IPA with suitable content in EA plays a key role in achieving a smooth and compact high-quality perovskite thin film, leading to the suppression of film defect-induced nonradiative recombination. As a result, the PSCs based on the EA/IPA (5:1) antisolvent showed a power conversion efficiency of 22.9% with an open-circuit voltage of 1.17 V.

中文翻译：

用于高效 NiOx 基倒置太阳能电池的绿色混合反溶剂的钙钛矿薄膜结晶动力学

环境友好型反溶剂对于获得高效、可重复和可持续的钙钛矿太阳能电池（PSC）至关重要。在这里，我们引入了一种绿色的乙酸乙酯-异丙醇（EA/IPA）混合反溶剂来精细调节晶粒生长和相关薄膜特性，包括钙钛矿薄膜的形貌、晶体结构和化学成分。 EA中适当含量的IPA对于获得光滑致密的高质量钙钛矿薄膜起着关键作用，从而抑制薄膜缺陷引起的非辐射复合。结果，基于 EA/IPA (5:1) 反溶剂的 PSC 的功率转换效率为 22.9%，开路电压为 1.17 V。

更新日期：2024-04-03

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