Abstract
This paper presents a novel concept for quantum-dots (QDs) phosphor plates using a polymer scaffold matrix. Here, graphene quantum-dots (GQDs) has utilized as the luminescent material in a polymeric scaffold prepared by free-radical polymerization followed by freeze-drying. The highly porous scaffold (porosity: ~60%, pore size in broad micron size) maintained the individual identity of the quantum dots for the beauty of high luminescence quantum yield, which is necessary for fabricating efficient phosphors. These outcomes were strongly reinforced by time-resolved photoluminescence. This study offers a systematic approach for tuning the luminescence property of quantum dots in different states such as powders, liquids, hydrogels, and freeze-dried scaffolds.
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