| Autor: |
Kukinov AA; G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950, Nizhny Novgorod, Russian Federation. mboch@iomc.ras.ru and Nizhny Novgorod State University, Gagarina Avenue 23/2, 603950, Nizhny Novgorod, Russian Federation., Balashova TV; G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950, Nizhny Novgorod, Russian Federation. mboch@iomc.ras.ru., Ilichev VA; G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950, Nizhny Novgorod, Russian Federation. mboch@iomc.ras.ru., Trufanov AN; Branch of RFYaTs-VNIIEF 'Y. E. Sedakov FNCP NIIIS', Tropinina 47, 603950, Nizhny Novgorod, Russian Federation., Ivin MN; Branch of RFYaTs-VNIIEF 'Y. E. Sedakov FNCP NIIIS', Tropinina 47, 603950, Nizhny Novgorod, Russian Federation., Obolensky SV; Nizhny Novgorod State University, Gagarina Avenue 23/2, 603950, Nizhny Novgorod, Russian Federation., Bochkarev MN; G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950, Nizhny Novgorod, Russian Federation. mboch@iomc.ras.ru and Nizhny Novgorod State University, Gagarina Avenue 23/2, 603950, Nizhny Novgorod, Russian Federation. |
| Abstrakt: |
A comparative study of the photoluminescence (PL) and radioluminescence (RL) of lanthanide complexes with benzimidazolylphenolate (NON), 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionate (TTA) and 1,3-acetylacetonate (acac) ligands revealed significant differences in the total and relative intensity of emission. The PL spectra contain both bands of metal-centered and ligand centred emission while X-ray excited compounds display only the bands of Ln3+ ions, the relative intensity of which differs from that in UV excited analogues. The RL intensity of all the studied complexes is about 300 times lower than that of PL. Increasing the cathode current and tube voltage enhances the RL efficiency insignificantly. Simultaneous irradiation of the sample with X-ray and UV radiation leads to a corresponding increase in the intensity of emission. A possible mechanism of RL of organo-lanthanide complexes is discussed. |
