“…Zeolites are microporous aluminosilicate crystalline with a large specific surface area that have shown many promising applications in biomedical, chemical, and petrochemical fields. − The framework of zeolites can be considered as SiO 2 with the partially isomorphic substitution of Si 4+ by Al 3+ and some counterbalancing cations like H + , Na + , K + , and NH 4 + inside the cages to neutralize the negative skeleton. Owing to their well-defined quantum-sized cages, high cation exchange capability, and high transparency in the visible range, zeolites have been considered as ideal scaffolds for luminescent centers with high surface energy that tend to aggregate, for example, metal clusters and quantum dots. − As efficient emitters in the whole visible region and flexible sensitizers for rare earth (RE) and transition metal ions, silver nanoclusters (Ag NCs) and their luminescence properties have been widely reported in glasses. − It was well established that the discrete energy level structure and emission wavelength of Ag NCs are closely related with the number of silver ions and atoms that constitute the nanoclusters. , The immobile and rigid glass matrices can provide a very long-term stability for Ag NCs but cannot define their size well. Generally, there is a size distribution of Ag NCs when dispersed in glasses, which becomes a challenge for the fundamental study on Ag NCs luminescence properties and the obtaining of Ag NCs activated luminescent phosphors with pure color.…”