Mechanism of Ag_n Nanocluster Photoproduction from Silver Oxide Films

摘要

Thin AgO films are readily photoactivated at room temperature to produce dynamic, multicolored fluorescent Ag_n nanoclusters. Writing efficiencies were separately examined as functions of excitation wavelength, intensity, and environmental interactions. The effects of external conditions on written nanocluster fluorescence are interpreted in terms of a mechanistic understanding of fluorescent Ag_n nanocluster creation and subsequent spectra dynamics, illustrating the equilibrium between nanocluster creation and destruction.