Reply to the ‘Comment on “Air-stable double halide perovskite Cs 2 CuBiBr 6 : synthesis and memristor application”’ by L. Xiao, J. Guo, G. Tang and Z. Xiao, Phys. Chem. Chem. Phys. , 2025, 27 , DOI: 10.1039/D5CP00194C

Air-stable double perovskite Cs 2 CuBiBr 6 was synthesized successfully. The time-dependent XRD and other characterizations indicate the material's stability. The synthesized materials were used for memristor applications.