Benzoate-mediated generation of front-back reversible photoluminescence in transparent polymer/LDH:Tb,Eu nanocomposite films

Key Points

• This research aims to develop transparent nanocomposite films with reversible photoluminescence using benzoate and rare-earth ions.
• Fabrication of nanocomposite films through aqueous solution routes
• Utilization of poly(vinyl alcohol) as the organic matrix
• Incorporation of hydrophilic layered double hydroxides activated with rare-earth ions.
• The resulting films exhibited significant reversible photoluminescence under external stimuli
• Improvements in luminescent properties were noted with the incorporation of benzoate
• The films maintained transparency while demonstrating efficient light emission.