This paper reports a luminescent composite that is simultaneously transparent, tough, and self-healing in both dry and wet conditions. A tough, self-healable fluorine elastomer with dipole-dipole interactions is synthesized as the polymer matrix, exhibiting excellent compatibility with metal halide perovskite quantum dots. The composite demonstrates a toughness of 19 MJ m⁻³, maximum strain of 1300%, and autonomous self-healing underwater. Importantly, it maintains mechanical and optical properties even after months of exposure to highly salty, acidic (pH = 1), and basic (pH = 13) environments.

Yuncong Liu, Tao Chen, Zhekai Jin, Mengxue Li, Dongdong Zhang, Lian Duan, Zhiguo Zhao, Chao Wang