Research output: Contribution to journal › Article › peer-review
Effect of synthesis conditions on structural, morphological and luminescence properties of MgAl2O4:Eu3+ nanopowders. / Golyeva, E. V.; Kolesnikov, I. E.; Lähderanta, E.; Kurochkin, A. V.; Mikhailov, M. D.
In: Journal of Luminescence, Vol. 194, 02.2018, p. 387-393.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of synthesis conditions on structural, morphological and luminescence properties of MgAl2O4:Eu3+ nanopowders
AU - Golyeva, E. V.
AU - Kolesnikov, I. E.
AU - Lähderanta, E.
AU - Kurochkin, A. V.
AU - Mikhailov, M. D.
PY - 2018/2
Y1 - 2018/2
N2 - Nanocrystalline aluminium magnesium spinel doped with europium ions powders were synthesized via modified Pechini method. The effect of synthesis conditions (calcination temperature and duration) on structural, morphological and luminescence properties of obtained nanopowders was studied. Both X-ray diffraction and Rietveld analysis showed that samples consist of only one crystalline phase – face-centred cubic spinel. The SEM and SLS analysis demonstrated that average particle size is about 50 nm. It was shown that the solubility limit of europium ions Eu3+ in MgAl2O4 nanocrystals depends on the calcination temperature. When europium is introduced into the aluminium magnesium spinel, the crystalline structure is disordered. It was found that unlike calcination temperature, duration of heat treatment does not affect powders properties. It was shown that strong structural and luminescence changes take place when calcination temperature is near 2/3 of MgAl2O4 melting temperature. The optimal conditions for synthesis nanopowders were determined as follows: Т1=600 °С t1=1.5 h, Т2=850 °С t2=2 h.
AB - Nanocrystalline aluminium magnesium spinel doped with europium ions powders were synthesized via modified Pechini method. The effect of synthesis conditions (calcination temperature and duration) on structural, morphological and luminescence properties of obtained nanopowders was studied. Both X-ray diffraction and Rietveld analysis showed that samples consist of only one crystalline phase – face-centred cubic spinel. The SEM and SLS analysis demonstrated that average particle size is about 50 nm. It was shown that the solubility limit of europium ions Eu3+ in MgAl2O4 nanocrystals depends on the calcination temperature. When europium is introduced into the aluminium magnesium spinel, the crystalline structure is disordered. It was found that unlike calcination temperature, duration of heat treatment does not affect powders properties. It was shown that strong structural and luminescence changes take place when calcination temperature is near 2/3 of MgAl2O4 melting temperature. The optimal conditions for synthesis nanopowders were determined as follows: Т1=600 °С t1=1.5 h, Т2=850 °С t2=2 h.
KW - SOL-GEL METHOD
KW - PHOTOLUMINESCENCE PROPERTIES
KW - EU3+ CONCENTRATION
KW - PECHINI METHOD
KW - NANOPARTICLES
KW - PHOSPHORS
KW - YVO4
KW - CERAMICS
KW - GLASSES
UR - http://www.scopus.com/inward/record.url?scp=85032337486&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/effect-synthesis-conditions-structural-morphological-luminescence-properties-mgal2o4eu3nanopowders
U2 - 10.1016/j.jlumin.2017.10.068
DO - 10.1016/j.jlumin.2017.10.068
M3 - Article
AN - SCOPUS:85032337486
VL - 194
SP - 387
EP - 393
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
ER -
ID: 36095764