Efficient phosphors based on organic dyes encapsulated in nanoporous nickel phosphate VSB-1

► Different dyes were introduced into nanoporous nickel phosphate VSB-1. ► Blue-shift and narrower absorption bands confirm that the dyes lie in channels of VSB-1. ► Emission bands for dye-VSB-1 composites exhibit blue-shift compared with their corresponding pure solid ones. ► VSB-1 plays a role of solid solvent to disperse dye molecules which enhances, the emission efficiency.