TY - JOUR

T1 - High quantum yield of red-emitting Eu3+ doped nanophosphor based on monoclinic Y2O3

AU - Kostyukov, Anton I.

AU - Panchenko, Valentina N.

AU - Nashivochnikov, Aleksandr A.

AU - Rakhmanova, Mariana I.

AU - Cherepanova, Svetlana V.

AU - Suprun, Evgenii A.

AU - Antonova, Olga

N1 - The authors are grateful to Vl. N. Snytnikov for the samples prepared, A. A. Pochtar for TG measurements, and A. V. Ishchenko for the HRTEM data. The studies were conducted using equipment of the Center of Collective Use “National Center of Catalyst Research” and the resource center “VTAN” (Novosibirsk State University).The study was financially supported by the Russian Science Foundation , Project no. 22-73-00106 (A. I. Kostyukov: synthesis and PL study of m-Y 2 O 3 :Eu 3+ , conceptualization, formal analysis). This work particularly was supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis projects № АААА-А 21-121011390009-1 and № АААА-А 21-121011490008-3 and partly by the Ministry of Science and Higher Education of the Russian Federation project № 121031700313–8 .

PY - 2023/12/15

Y1 - 2023/12/15

N2 - In the present article we report on the laser synthesis of Eu3+ doped nanophosphor with improved red color based on single-phase monoclinic Y2O3 and an experimentally measured quantum yield as high as 60% at λ = 395 nm excitation. HRTEM and SEM studies evidence the formation of nanoparticles with a spherical morphology, the average diameter of ca. 20 nm, and high crystallinity. We demonstrate that such a high quantum yield can be achieved by adding oxygen during laser synthesis in a combination with post-synthesis treatments in air at T = 750 °C. The thermal annealing effects in air and vacuum in the range of 250–750 °C on the morphology, structure, optical and photoluminescence properties of as-synthesized m-Y2O3:Eu3+ have been discussed. The obtained chromaticity coordinates (0.659, 0.332), high color purity (96%) and high absolute quantum yield indicate the possibility of using red nanophosphor based on monoclinic Y2O3:Eu3+ in numerous luminescence applications.

AB - In the present article we report on the laser synthesis of Eu3+ doped nanophosphor with improved red color based on single-phase monoclinic Y2O3 and an experimentally measured quantum yield as high as 60% at λ = 395 nm excitation. HRTEM and SEM studies evidence the formation of nanoparticles with a spherical morphology, the average diameter of ca. 20 nm, and high crystallinity. We demonstrate that such a high quantum yield can be achieved by adding oxygen during laser synthesis in a combination with post-synthesis treatments in air at T = 750 °C. The thermal annealing effects in air and vacuum in the range of 250–750 °C on the morphology, structure, optical and photoluminescence properties of as-synthesized m-Y2O3:Eu3+ have been discussed. The obtained chromaticity coordinates (0.659, 0.332), high color purity (96%) and high absolute quantum yield indicate the possibility of using red nanophosphor based on monoclinic Y2O3:Eu3+ in numerous luminescence applications.

KW - Eu3+ luminescence

KW - Laser vaporization

KW - Monoclinic Y2O3

KW - Nanophosphor

KW - Quantum yield

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85146340256&origin=inward&txGid=67ae3b2615e1419ba19a21f6e874f319

UR - https://www.mendeley.com/catalogue/895c6c0d-7e1a-3212-87ed-0fbcc67b7b1a/

U2 - 10.1016/j.ceramint.2023.01.078

DO - 10.1016/j.ceramint.2023.01.078

M3 - Article

VL - 49

SP - 41158

EP - 41166

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 24

ER -