Luminescence and Spectral Characteristics of Zinc Sulfide Nanoparticles Doped with Eu2

• Published in: Theoretical and experimental chemistry Vol. 51; no. 6; pp. 366 - 374
• Main Authors: Selishchev, A. V., Pavlishchuk, V. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 2016
• Subjects: Chemistry; Chemistry and Materials Science; Chemistry/Food Science
• ISSN: 0040-5760; 1573-935X
• DOI: 10.1007/s11237-016-9437-y

A method is proposed for the production of zinc sulfide nanoparticles with an average size of 6.0 ± 1.0 nm, doped with
2+
ions (molar ratio Eu : Zn ≈ 0.01%-0.19%), by simultaneous decomposition of diethyldithiocarbamate complexes of zinc(II) and europium(II) in high-boiling solvents. It was established that the position of the emission band at 645 nm for the obtained ZnS : Eu
2+
nanoparticles hardly depends at all on the europium content while the luminescence intensity is highest with a dopant content of 0.05%. It was shown that the emission band for the ZnS : Eu
2+
nanoparticles arises from Eu
2+
emission centers localized on the surface of the nanoparticles.