Title :
Synthesis and luminescence of Cr(III)-doped aluminum oxide/molybdate composites
Author :
Terebilenko, K. ; Suharevska, N. ; Hizhnyi, Yu. ; Nedilko, S. ; Chornii, V. ; Slobodyanik, N.
Author_Institution :
Taras Shevchenko Nat. Univ. of Kyiv, Kiev, Ukraine
Abstract :
The conditions of synthesis and luminescence characteristics of composites Al2O3:Cr3+/NaAl(MoO4)2:Cr3+ obtained from molybdate high-temperature solutions have been studied. The influence of the impurity Cr3+ ions on crystallization regions in the molten system Na-Al-Mo-O has been detected as a key factor of composite formation. The luminescence emission spectra of the composite exhibit two narrow lines at 692 nm (Al2O3:Cr3+) and 740.5 nm (NaAl(MoO4)2:Cr3+), which indicates that both components of the composite are doped with chromium.
Keywords :
aluminium compounds; chromium; composite materials; crystallisation; materials preparation; photoluminescence; sodium compounds; Al2O3:Cr3-NaAl(MoO4)2:Cr; Cr(III)-doped aluminum oxide-molybdate composites; crystallization regions; impurity ions; luminescence; luminescence emission spectra; molten system; Powders; Cr3+ luminescence; crystal growth; double molybdate; high-temperature solutions;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912378
