Synergistic luminescence effect and high-pressure optical properties of CsPbBr₂Cl@EuMOFs nanocomposites

Metal-organic frameworks (MOFs) are a class of highly porous materials that have garnered significant attention in the field of optoelectronics due to their exceptional properties. In this study, CsPbBr₂Cl@EuMOFs nanocomposites were synthesized using a two-step method. The fluorescence evolution of the CsPbBr₂Cl@EuMOFs was investigated under high pressure, revealing a synergistic luminescence effect between CsPbBr₂Cl and Eu³⁺. The study found that the synergistic luminescence of CsPbBr₂Cl@EuMOFs remains stable even under high pressure, and there is no energy transfer among different luminous centers. These findings provide a meaningful case for future research on nanocomposites with multiple luminescent centers. Additionally, CsPbBr₂Cl@EuMOFs exhibit a sensitive color-changing mechanism under high pressure, making them a promising candidate for pressure calibration via the color change of the MOF materials.