Volatile Perovskite Precursor Ink Enables Window Printing of Phase-Pure FAPbI3 Perovskite Solar Cells and Modules in Ambient Atmosphere
Linhao Yuan1, Xining Chen1, Xianming Guo7, Shihao Huang1, Xiaoxiao Wu1, Yunxiu Shen1, Hao Gu1, Yujin Chen6, Guixiang Zeng8, Hans-Joachim Egelhaaf9,10, Christoph J. Brabec9,10, Fu Yang1,2,6*（杨甫）, Yaowen Li1,2,3,4,5*（李耀文）, Yongfang Li1,2
1Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou215123(China)
2Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University Suzhou, 215123, Jiangsu(P. R. China)
3State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, SoochowUniversitySuzhou215123(China)
4Beijing National Laboratory for Molecular Sciences, Chinese Academy of Sciences Beijing100190(China)
5CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences Beijing100190(China)
6Suzhou Sunflex New Energy Company Limited Suzhou 215100(China)
7School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210008(China)
8Kuang Yaming Honors School, Nanjing University Nanjing 210023(China)
9Institute of Materials for Electronics and Energy Technology(i-MEET), Friedrich-Alexander University Erlangen-Nürnberg Martensstrasse7, 91058 Erlangen(Germany)
10Helmholtz Institute Erlangen-Nürnbergfor Renewable Energy(HIERN) Immerwahrstrasse2, 91058 Erlangen(Germany)
Angew. Chem. Int. Ed. 2024, 63, e202316954(1 of 11)
Abstract: Despite the great success of perovskite photovoltaics in terms of device efficiency and stability using laboratory-scale spin-coating methods, the demand for high-throughput and cost-effective solutions remains unresolved and rarely reported because of the complicated nature of perovskite crystallization. In this work, we propose a stable precursor ink design strategy to control the solvent volatilization and perovskite crystallization to enable the wide speed window printing (0.3 to 18.0 m/min) of phase-pure FAPbI3 perovskite solar cells (pero-SCs) in ambient atmosphere. The FAPbI3 perovskite precursor ink uses volatile acetonitrile (ACN) as the main solvent with DMF and DMSO as coordination additives is beneficial to improve the ink stability, inhibit the coffee rings, and the complicated intermediate FAPbI3 phases, delivering high-quality pin-hole free and phase-pure FAPbI3 perovskite films with large-scale uniformity. Ultimately, small-area FAPbI3 pero-SCs (0.062 cm2) and large-area modules (15.64 cm2) achieved remarkable efficiencies of 24.32 % and 21.90 %, respectively, whereas the PCE of the devices can be maintained at 23.76 % when the printing speed increases to 18.0 m/min. Specifically, the unencapsulated device exhibits superior operational stability with T90>1350 h. This work represents a step towards the scalable, cost-effective manufacturing of perovskite photovoltaics with both high performance and high throughput.
链接：https://onlinelibrary.wiley.com/doi/10.1002/anie.202316954
