Enantiomer-selective sensing and the light response of chiral molecules coated with a persistent luminescent material.

Pr3+:CaTiO3, a robust persistent luminescent material, was coupled with chiral molecules and Ag nanoparticles (NPs) to construct a Pr3+:CaTiO3@Ag@l-cysteine ternary material that can realize rapid enantiomer selective sensing of l- and d-arginine by making use of the chiral induced spin selectivity (CISS) effect. In addition, long-lifetime photoelectrons excited in the Pr3+:CaTiO3 matrix were effectively transported through a Ag NP "bridge" into the l-cysteine chiral monolayer, due to cooperation between each component in the ternary material.