Open AccessФотолюминесценция композитов полиметилметакрилат / [(Zn,Cd)S : Mn,Cu,Eu]
Author(s) -
В. П. Смагин,
А. А. Исаева
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.16.51330.18741
Subject(s) - photoluminescence , ion , materials science , zinc , doping , photoluminescence excitation , absorption (acoustics) , electron transfer , atomic electron transition , luminescence , photochemistry , analytical chemistry (journal) , chemistry , optoelectronics , physics , metallurgy , spectral line , organic chemistry , chromatography , astronomy , composite material
Nanoscale structures based on zinc and cadmium sulfides doped with Mn, Cu, and Eu ions were synthesized by the method of emerging reagents in a polymerizing medium of methyl methacrylate. The broadband photoluminescence of the compositions is associated with recombination processes at the defect levels of semiconductor structures. Narrow photoluminescence bands occur during electron transitions between the energy levels of Eu3+ ions. The excitation of photoluminescence occurs as a result of the interband transition and electron transitions to the levels of structural defects, as well as during self-absorption and energy transfer to the levels of Eu3+ ions.