| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
 855 0 |
 SM ISO690:2012NAZAROV, Michael V., MAMMADOVA, Samira, SPASSKY, Dmitry, VIELHAUER, Sebastian, ABDULLAYEVA, Sevda, HUSEYNOV, A., JABBAROV, Rasim. SrAl2O4:Eu2+ (1%) luminescence under UV, VUV and electron beam excitation. In: Optical Materials, 2018, vol. 75, pp. 448-452. ISSN 0925-3467. DOI: https://doi.org/10.1016/j.optmat.2017.11.001 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
  Optical Materials |
|
| Volumul 75 / 2018 / ISSN 0925-3467 | |
|
|
| DOI:https://doi.org/10.1016/j.optmat.2017.11.001 | |
| Pag. 448-452 | |
| Rezumat | |
This paper reports the luminescence properties of nanosized SrAl2O4:Eu2+ (1%) phosphors. The samples were prepared by combustion method at 600 °C, followed by annealing of the resultant combustion ash at 1000 °C in a reductive (Ar + H2) atmosphere. X-ray diffraction (XRD), photo luminescence (PL) and cathodoluminescence (CL) analysis and thermal stimulated luminescence (TSL) method were applied to characterize the phosphor. For the first time a peak at 375 nm was observed in CL spectra of SrAl2O4:Eu2+ (1%) nanophosphors. Luminescence excitation spectra analysis have shown that this peak is related to crystal defects. Also in TSL curve one strong peak was observed in the region above room temperature (T = 325 K), which is attributed to lattice defects, namely oxygen vacancies. A green LED was fabricated by the combination of the SrAl2O4:Eu2+ (1%) nanosized phosphor and a 365 nm UV InGaN chip. |
|
| Cuvinte-cheie cathodoluminescence, photoluminescence, Synchrotron radiation, Combustion method, SrAl2O4:Eu2, Thermally stimulated luminescence |
|
|
|
|
|
