Research output: Contribution to journal › Article › peer-review
Synthesis and study of upconversion Lu2(WO4)3 : Yb3+, Tm3+ nanoparticles synthesized by modified Pechini method. / Afanaseva, E. V.; Vaishlia, E. I.; Lähderanta, E.; Kolesnikov, I. E.
In: Optical Materials, Vol. 117, 111179, 01.07.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Synthesis and study of upconversion Lu2(WO4)3
T2 - Yb3+, Tm3+ nanoparticles synthesized by modified Pechini method
AU - Afanaseva, E. V.
AU - Vaishlia, E. I.
AU - Lähderanta, E.
AU - Kolesnikov, I. E.
N1 - Publisher Copyright: © 2021 Elsevier B.V.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - We report on Lu2(WO4)3: Yb3+, Tm3+ upconversion nanoparticles prepared via modified Pechini method, which is low-cost in comparison with analogs and allows achieving the homogenous rare earth ions (Yb3+ and Tm3+) dispersion in the host matrix. The Tm3+ doping concentration effect on structural and luminescence properties has been studied in detail. The structure of the nanoparticles was characterized by XRD and Raman spectroscopy. Both analytical methods confirmed the formation of single phase Lu2(WO4)3: Yb3+, Tm3+ nanoparticles without any impurities. It was found that thulium ions are uniformly incorporated into the tungstate structure up to a concentration of 1%. SEM images showed that prepared samples consisted of weakly agglomerated nanoparticles with an average size of about 40–80 nm. Emission and excitation spectra of all Lu2(WO4)3: xTm3+, 10% Yb3+ samples contained characteristic transitions inside Tm3+ ions. Upconversion spectra demonstrated intense infrared line (3H4–3H6) as well as weak blue 1G4–3H6 and two red (1G4–3F4, 3F2,3–3F6) bands obtained upon 974 nm excitation. Optimal Tm3+ doping concentration was found to be 0.3% for both 3H4–3H6 and 1G4–3F4 transitions. Change of chromaticity coordinates along with Tm3+ amount increase was also observed.
AB - We report on Lu2(WO4)3: Yb3+, Tm3+ upconversion nanoparticles prepared via modified Pechini method, which is low-cost in comparison with analogs and allows achieving the homogenous rare earth ions (Yb3+ and Tm3+) dispersion in the host matrix. The Tm3+ doping concentration effect on structural and luminescence properties has been studied in detail. The structure of the nanoparticles was characterized by XRD and Raman spectroscopy. Both analytical methods confirmed the formation of single phase Lu2(WO4)3: Yb3+, Tm3+ nanoparticles without any impurities. It was found that thulium ions are uniformly incorporated into the tungstate structure up to a concentration of 1%. SEM images showed that prepared samples consisted of weakly agglomerated nanoparticles with an average size of about 40–80 nm. Emission and excitation spectra of all Lu2(WO4)3: xTm3+, 10% Yb3+ samples contained characteristic transitions inside Tm3+ ions. Upconversion spectra demonstrated intense infrared line (3H4–3H6) as well as weak blue 1G4–3H6 and two red (1G4–3F4, 3F2,3–3F6) bands obtained upon 974 nm excitation. Optimal Tm3+ doping concentration was found to be 0.3% for both 3H4–3H6 and 1G4–3F4 transitions. Change of chromaticity coordinates along with Tm3+ amount increase was also observed.
KW - Lanthanides
KW - Luminescence
KW - Modified Pechini method
KW - Nanoparticles
KW - Thulium
KW - Tungstates
KW - Upconversion
KW - PHOTOLUMINESCENCE
KW - BLUE
KW - NANOCRYSTALS
KW - EU3+
KW - SENSOR
KW - CO
KW - THERMOMETRY
KW - LUMINESCENCE
KW - ENERGY-TRANSFER
KW - EMISSION
UR - http://www.scopus.com/inward/record.url?scp=85105774274&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/dc88959e-f69a-3026-9bf9-f3e91e684305/
U2 - 10.1016/j.optmat.2021.111179
DO - 10.1016/j.optmat.2021.111179
M3 - Article
AN - SCOPUS:85105774274
VL - 117
JO - Optical Materials
JF - Optical Materials
SN - 0925-3467
M1 - 111179
ER -
ID: 86366757