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
1Laboratoryof AdvancedOptoelectronicMaterials,SuzhouKeyLaboratoryof NovelSemiconductor-optoelectronicsMaterialsandDevices,Collegeof Chemistry, ChemicalEngineeringand MaterialsScience,SoochowUniversitySuzhou215123(China)
2JiangsuKey Laboratoryof AdvancedNegativeCarbonTechnologies,SoochowUniversitySuzhou,215123,Jiangsu(P. R. China)
3Stateand LocalJoint EngineeringLaboratoryfor NovelFunctionalPolymericMaterials,JiangsuKey Laboratoryof AdvancedFunctionalPolymerDesignand Application,Collegeof Chemistry,ChemicalEngineeringand MaterialsScience,SoochowUniversitySuzhou215123(China)
4BeijingNationalLaboratoryfor MolecularSciences, ChineseAcademyof SciencesBeijing100190(China)
5CAS KeyLaboratoryof OrganicSolids,Instituteof Chemistry, ChineseAcademyof SciencesBeijing100190(China)
6SuzhouSunflexNew EnergyCompanyLimitedSuzhou215100(China)
7Schoolof Chemistryand ChemicalEngineering,NanjingUniversityNanjing210008(China)
8KuangYamingHonorsSchool,NanjingUniversityNanjing210023(China)
9Instituteof Materialsfor Electronicsand EnergyTechnology(i-MEET),Friedrich-AlexanderUniversityErlangen-NürnbergMartensstrasse7, 91058Erlangen(Germany)
10HelmholtzInstituteErlangen-Nürnbergfor RenewableEnergy(HIERN)Immerwahrstrasse2, 91058Erlangen(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 FAPbI3perovskite solar cells (pero-SCs) in ambient atmosphere. The FAPbI3perovskite 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 FAPbI3perovskite films with large-scale uniformity. Ultimately, small-area FAPbI3pero-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
