A-site FA<sup>+</sup>engineering boosting photoluminescence efficiency and stability of cesium copper iodine (Cs<sub>3</sub>Cu<sub>2</sub>I<sub>5</sub>) perovskites
Wenxuan Fan, Leimeng Xu, Zhi Yang, Yingliang Liu, Jizhong Song
Abstract
Here, we firstly propose an A-site engineering strategy to improve the luminescence performance of Cs 3 Cu 2 I 5 . Through the incorporation of FA + , the lattice defects in Cs 3 Cu 2 I 5 can be reduced and the PLQY of the optimized sample is increased to 95%.
Topics & Concepts
CaesiumMaterials sciencePhotoluminescenceCopperLuminescenceIodineAnalytical Chemistry (journal)Lattice (music)Inorganic chemistryOptoelectronicsMetallurgyChemistryAcousticsChromatographyPhysicsPerovskite Materials and ApplicationsAdvanced Photocatalysis TechniquesElectronic and Structural Properties of Oxides