ИСТИНА

Copper- or manganese-doped zinc sulfide nanostructure arrays draw close attention due to their great promises in development of modern optoelectronic devices including light sources, optical touch panels or fluorescent labels. The work is focused on development of cheap pathways for formation of ordered ZnS:Cu(Mn) nanosized dot arrays formed by condensation of thermally evaporated ZnS and Cu2S powders in the pores of highly-ordered anodic alumina matrix in ultrahigh vacuum. Matrices with pore diameters of 40, 60 and 120 nm and thickness of interpore walls of 15 (+-5) nm were formed in aluminum plate and glass substrates. ZnS:Cu(Mn)@AAO composites were study by SEM, EDX, XPS, UV-VIS spectroscopy, X-Ray Diffraction and EXAFS-spectroscopy methods in comparison with ZnS:Cu(Mn) thin films. SEM studies shown that the form and arrangement of semiconductor nanostructures replicates well the form and arrangement of matrix channels. EDX analysis shown the penetration of deposited materials into pores to a depth of 3 micron. Luminescent and electroluminescent properties have been also investigated. The samples exhibit luminescence in a visible region depending on type and concentration of dopant atom and pore size of matrix. The work is supported by Russian Scientific Foundation (Grant № 15-19-10002) and Russian Foundation of Basic Researches (Grant № 16-48-180303).