Molecular dipole engineering-assisted strain release for mechanically robust flexible perovskite solar cells
Lisha Xie, Songyu Du, Jun Li, Chang Liu, Zhenwei Pu, Xinyu Tong, Jian Liu, Yaohua Wang, Yuanyuan Meng, Mengjin Yang, Wei Li, Ziyi Ge
Abstract
–CN additives are used to sew defects at perovskite grain boundaries and release GB stresses, resulting in low Young's modulus & high mechanical flexibility. Furthermore, 2F-2CN with a stronger molecular dipole enhances the efficiency & stability of inverted f-PSCs, yielding exceptional efficiency.
Topics & Concepts
Perovskite (structure)DipoleMaterials scienceModulusFlexibility (engineering)Strain (injury)Grain boundaryStructural stabilityComposite materialChemical engineeringCrystallographyChemistryStructural engineeringMicrostructureOrganic chemistryMathematicsMedicineStatisticsEngineeringInternal medicinePerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics