Origin of the polychromatic photoluminescence of zeolite confined Ag clusters: temperature- and co-cation-dependent luminescence.

ABSTRACT: Zeolite confined silver clusters (AgCLs) have attracted extensive attention due to their remarkable luminescent properties, but the elucidation of the underlying photophysical processes and especially the excited-state dynamics remains a challenge. Herein, we investigate the bright photoluminescence of AgCLs confined in Linde Type A zeolites (LTA) by systematically varying the temperature (298-77 K) and co-cation composition (Li/Na) and examining their respective influence on the steady-state and time-resolved photoluminescence. The observed polychromatic emission of the tetrahedral Ag₄(H₂O) _n ²⁺ clusters ranges from orange to violet and three distinct emitting species are identified, corresponding to three long-lived triplet states popula

SUBMITTER: Sun L 

PROVIDER: S-EPMC9555561 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature