Slot-die coating of formamidinium-cesium mixed halide perovskites in ambient conditions with FAAc additive

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

MRS Communications Pub Date : 2024-02-07 DOI:10.1557/s43579-024-00522-x

Nischal Khakurel, Drew Amyx, Maggie Yihong Chen, Yoichi Miyahara, Wilhelmus J. Geerts

引用次数: 0

Abstract

Continuous pin-hole free FA_0.78Cs_0.22Pb(I_0.85Br_0.15)₃ films are deposited by gas-assisted slot-die printing under ambient conditions using DMF/DMSO based ink containing Formamdinium Acetate additive. Using a binary solvent mixture of DMF and DMSO is effective in eliminating the non-perovskite phase that occurs when DMF alone is used. Print-speed, gas flow rate and chuck temperature are optimized to realize homogeneous films with constant bandgap (1.63 eV) over large substrates (2″ × 4″). The perovskite films prepared using two solvents DMF and DMF: DMSO (9:1) were incorporated in single junction devices. The resulting devices show improved fill factor with improved power conversion efficiency.

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使用 FAAc 添加剂在环境条件下对甲脒铯混合卤化物包晶石进行槽栅镀膜

在环境条件下，使用含有醋酸锑添加剂的 DMF/DMSO 型油墨，通过气体辅助槽模印刷沉积出连续无针孔的 FA0.78Cs0.22Pb(I0.85Br0.15)3 薄膜。使用 DMF 和 DMSO 的二元混合溶剂可有效消除单独使用 DMF 时出现的非超晶石相。对印刷速度、气体流速和夹头温度进行了优化，以在大型基底（2″×4″）上实现具有恒定带隙（1.63 eV）的均匀薄膜。使用 DMF 和 DMF: DMSO（9:1）两种溶剂制备的过氧化物薄膜被集成到单结器件中。所制备的器件显示出更高的填充因子和更高的功率转换效率。

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

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.