Synthesis of EuS and EuSe particles via thermal decomposition of dithio- and diselenophosphinate europium complexes

Autor: Alexey N. Konev, M. E. Burin, Georgy K. Fukin, Mikhail N. Bochkarev, Anatoly P. Pushkarev, R. V. Rumyantsev
Rok vydání: 2017
Předmět:
Zdroj: Nanotechnologies in Russia. 12:66-72
ISSN: 1995-0799
1995-0780
DOI: 10.1134/s1995078017010025
Popis: New two- and trivalent europium complexes with dithio- and diselenodiphenylphosphinate ligands (S2PPh 2 - and Se2PPh 2 - ) have been synthesized as precursors for nanoparticles. Two-valent europium compounds have been characterized via X-ray diffraction. Their photoluminescence properties have been studied as well. EuS colloidal nanoparticles have been obtained via the thermolysis of Eu(S2PPh2) n (n = 2, 3) in a hexadecylamine medium at 310°C. The average size of objects is found to be 40–70 nm. As is established, the valent state of a lanthanide in the complex exerts no influence on the size of the forming nanoparticles or on the luminescence spectrum of colloidal solutions.
Databáze: OpenAIRE