Excitation-wavelength-dependent photoluminescence of silicon nanoparticles enabled by adjustment of surface ligands?
Chemical Communications Pub Date: 2018-04-19 DOI: 10.1039/C8CC00047F
Abstract
We herein present pioneering studies to reveal that excitation-wavelength-dependent photoluminescence properties of fluorescent silicon nanoparticles (SiNPs) can be realized by rationally designing surface ligands, i.e., several kinds of oxidized indole derivatives. The resultant ligand-decorated SiNPs exhibit strong fluorescence, with significant excitation-wavelength-dependent emissive shifting from ～420 nm to ～550 nm. Taking advantage of their unique optical merits, we further exploit the resultant ligand-decorated SiNPs as novel fluorescent labels for anti-counterfeiting and cell imaging.
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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