2013
DOI: 10.5012/bkcs.2013.34.4.1181
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Syntheses of Biologically Non-Toxic ZnS:Mn Nanocrystals by Surface Capping with O-(2-aminoethyl)polyethylene Glycol and O-(2-carboxyethyl)polyethylene Glycol Molecules

Abstract: Water-dispersible ZnS:Mn nanocrystals were synthesized by capping the surface of the nanocrystal with O-(2-Aminoethyl)polyethylene glycol (PEG-NH 2 , Mw = 10,000 g/mol) and O-(2-Carboxyethyl)polyethylene glycol (PEG-COOH, Mw = 10,000 g/mol) molecules. The modified PEG capped ZnS:Mn nanocrystal powders were thoroughly characterized by XRD, HR-TEM, EDXS, ICP-AES and FT-IR spectroscopy. The optical properties were also measured by UV/Vis and photoluminescence (PL) spectroscopies. The PL spectra showed broad emiss… Show more

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