Methylammonium and Bromide-Free Tin-Based Low Bandgap Perovskite Solar Cells,Advanced Energy Materials

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Methylammonium and Bromide-Free Tin-Based Low Bandgap Perovskite Solar Cells
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2022-06-07 , DOI: 10.1002/aenm.202200305
Tahir Imran ₁ , Sajid Rauf ₂ , Hasan Raza ₁ , Liaquat Aziz ₁ , Rui Chen ₁ , Sanwan Liu ₁ , Jianan Wang ₁ , Muhammad Ashfaq Ahmad ₃ , Shasha Zhang ₄ , Yiqiang Zhang ₄ , Zonghao Liu _{1,

5} , Wei Chen _{1,

5}

Affiliation

Lead halide-based perovskite solar cells (PSCs) are intriguing candidates for photovoltaic technology because of their high efficiency, low cost, and simple process advantages. Owing to lead toxicity, PSCs based on partially/fully substituted Pb with tin have attracted tremendous attention, which would enable the ideal bandgap to approach the Shockley-Queisser (S-Q) limit. Especially, methylammonium (MA), bromide-free, tin-based perovskites are striking, because of the intrinsic poor stability of MA and blue shift caused by the incorporation of Br⁻. The first section of this review emphasizes the motivation for studying single-junction MA, Br-free, and Sn-based perovskites. The film quality improvement strategies of Sn-based perovskites, including additive, composition, dimensional, and interface engineering toward high-efficiency devices are comprehensively overviewed. Moreover, strategies to improve stability, where shelf, thermal and operational stabilities of the devices are summarized. Finally, this review concludes with a discussion of actual limitations and future prospects for Sn-based PSCs.

中文翻译：

不含甲基铵和溴化物的锡基低带隙钙钛矿太阳能电池

基于卤化铅的钙钛矿太阳能电池 (PSC) 因其高效率、低成本和简单的工艺优势而成为光伏技术的有趣候选者。由于铅的毒性，基于部分/完全取代的 Pb 与锡的 PSCs 引起了极大的关注，这将使理想的带隙接近 Shockley-Queisser (SQ) 极限。尤其是甲基铵 (MA)、无溴化物、锡基钙钛矿是引人注目的，因为 MA 固有的稳定性差以及由 Br ^{-的掺入引起的蓝移}. 本综述的第一部分强调了研究单结 MA、无 Br 和 Sn 基钙钛矿的动机。全面概述了 Sn 基钙钛矿的薄膜质量改进策略，包括面向高效器件的添加剂、成分、尺寸和界面工程。此外，还总结了提高稳定性的策略，其中总结了设备的货架、热和操作稳定性。最后，本综述最后讨论了 Sn 基 PSC 的当前局限性和未来前景。

更新日期：2022-06-07

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