“…Silver nanoclusters confined within the zeolite are environmentally friendly, low-cost, and highly luminescent materials because of their simple synthesis procedure using cheap starting materials (zeolites), high stability, and attractive optical properties including high efficiency, large Stoke’s shift, tunable absorption, and emission, which make them highly useful in optoelectronic devices, luminescence sensing, date coding, etc. , Zeolites play critical roles in tuning the emission colors, the light absorption, and the luminescence efficiency of the formed silver nanoclusters within zeolites by varying several parameters such as the zeolite framework topology, chemical composition, choice of counterbalancing ions, and silver loading. − This is because such parameters can effectively affect the microenvironment where the silver nanoclusters are located and thereby all work to influence the geometry, dimension, and nuclearity. , By modulating one or several of the parameters, a series of luminescent materials derived from the confinement of silver nanoclusters within various zeolites, including LTA, FAU, SOD, and ANA, were reported, their emission color spans the whole visible spectral region and white emission is achieved, and the PLQY can be up to one unit in the FAUY zeolite. − Among the various parameters, the counterbalancing ions are highly attractive for tuning the optical features of silver nanoclusters confined within the zeolite since they can be very easily changed by the simple ion exchange procedure, and the effects they have on the luminescent properties are very prominent. For instance, Steele et al observed that the hypsochromic shift of the confined silver nanoclusters was realized by the gradual incorporation of Li + into the LTA zeolite .…”