In-situ one-step electrospray fabrication of polyvinylidene fluoride encapsulated CsPbBr3 spheres with high stability and cell imaging application

Herein, green luminescence poly-vinylidene fluoride (PVDF) encapsulated CsPbBr 3 nanocrystals (CsPbBr 3 @ PVDF) with full width at half maximum (FWHM) of 20 nm were successfully prepared through one-pot electrospray process. The as prepared perovskite spheres showed outstanding stability in water, and displayed low cytotoxicity, which were applied for cell membrane imaging.