Photoluminescence of the nanosized xerogel Zn2SiO4:Mn2+ in pores of anodic alumina
| Autor: | V. A. Pustovarov, N. V. Gaponenko, M. V. Rudenko, Alexander A. Sergeev, K. A. Petrovykh, V. S. Kortov, Andrey A. Rempel, S. S. Voznesenskii, L. S. Khoroshko |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Photoluminescence Materials science Scanning electron microscope Analytical chemistry Nanoparticle Phosphor 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Molecular electronic transition Electronic Optical and Magnetic Materials Ion 0103 physical sciences Activator (phosphor) 0210 nano-technology Luminescence |
| Zdroj: | Physics of the Solid State. 58:2062-2067 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783416100280 |
| Popis: | The photoluminescence properties of a composite material prepared by the introduction of the nanosized phosphor Zn2SiO4:Mn2+ into porous anodic alumina have been investigated. Scanning electron microscopy studies have revealed that Zn2SiO4:Mn2+ particles are uniformly distributed in 70% of the volume of the pore channels. The samples exhibit an intense luminescence in the range of 2.3–3.0 eV, which corresponds to the emission of different types of F centers in alumina. After the formation of Zn2SiO4:Mn2+ nanoparticles in the pores, an intense photoluminescence band is observed at 2.4 eV due to the 4T1–6A1 electronic transition within the 3d shell of the Mn2+ activator ion. It has been found that the maximum of the photoluminescence of Zn2SiO4:Mn2+ xerogel nanoparticles located in the porous matrix is shifted to higher energies, and the luminescence decay time decreases significantly. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink