title: A facile reduction of Eu3+ to Eu2+ in gadolinium monosulfide nanoparticles using a mixed solvent of oleic acid/hexadecylamine.
abstract: We prepared GdS:Eu(3+) by simple thermal decomposition under 1-dodecanethiol. A reduction process was observed from Eu(3+) to Eu(2+) when oleic acid and hexadecylamine were injected into GdS:Eu(3+). Under UV excitation, GdS:Eu(3+) showed an intense orange-red emission and GdS:Eu(2+) showed a broad green band.
authors.affiliation: Nano-Bio Fusion Research Center, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea.
authors.forename: Mi Ae
authors.initials: MA
authors.lastname: Kim
authors.forename: Seung Jae
authors.initials: SJ
authors.lastname: Lee
authors.forename: Jongjin
authors.initials: J
authors.lastname: Jung
authors.forename: Joung Kyu
authors.initials: JK
authors.lastname: Park
mesh_terms: D000588:Amines / Q000737:chemistry; D005063:Europium / Q000737:chemistry*; D005682:Gadolinium / Q000737:chemistry*; D006838:Hydrocarbons; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D019301:Oleic Acid / Q000737:chemistry; D010084:Oxidation-Reduction; D056951:Photoelectron Spectroscopy; D012997:Solvents / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D013440:Sulfides / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D000588:Amines; D006838:Hydrocarbons; D012997:Solvents; D013440:Sulfides; C551149:gadolinium monosulfide; D019301:Oleic Acid; D005063:Europium; D005682:Gadolinium; C013553:hexadecylamine