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Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties. / Lim, Chang Sung; Aleksandrovsky, Aleksandr; Atuchin, Victor et al.

In: Crystals, Vol. 10, No. 11, 1000, 11.2020, p. 1-14.

Research output: Contribution to journal › Article › peer-review

Harvard

Lim, CS, Aleksandrovsky, A, Atuchin, V, Molokeev, M & Oreshonkov, A 2020, 'Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties', Crystals, vol. 10, no. 11, 1000, pp. 1-14. https://doi.org/10.3390/cryst10111000

APA

Lim, C. S., Aleksandrovsky, A., Atuchin, V., Molokeev, M., & Oreshonkov, A. (2020). Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties. Crystals, 10(11), 1-14. [1000]. https://doi.org/10.3390/cryst10111000

Vancouver

Lim CS, Aleksandrovsky A, Atuchin V, Molokeev M, Oreshonkov A. Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties. Crystals. 2020 Nov;10(11):1-14. 1000. doi: 10.3390/cryst10111000

Author

Lim, Chang Sung ; Aleksandrovsky, Aleksandr ; Atuchin, Victor et al. / Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties. In: Crystals. 2020 ; Vol. 10, No. 11. pp. 1-14.

BibTeX

@article{cbab2c64b4504bf7af28959adc717bb8,
title = "Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties",
abstract = "AgGd(MoO4)2:Ho3+/Yb3+ double molybdates with five concentrations of Ho3+ and Yb3+ were synthesized by the microwave employed sol–gel based process (MES), and the crystal structure variation, concentration effects, and spectroscopic characteristics were investigated. The crystal structures of AgGd1-x-yHoxYby(MoO4)2 (x = 0, 0.05; y = 0, 0.35, 0.4, 0.45, 0.5)at room temperature were determined in space group I41 /a by Rietveld analysis. Pure AgGd(MoO4)2 has a scheelite-type structure with mixed occupations of (Ag,Gd) sites and cell parameters a = 5.24782 (11) and c = 11.5107 (3) {\AA}, V = 317.002 (17) {\AA}3, Z = 4. In doped samples, the sites are occupied by a mixture of (Ag,Gd,Ho,Yb) ions, which provides a linear cell volume decrease with the doping level increase. Under the excitation at 980 nm, AGM:0.05Ho,yYb phosphors exhibited a yellowish green emission composed of red and green emission bands according to the strong transitions5F5 →5I8 and5S2/5F4 →5I8 of Ho3+ ions. The evaluated photoluminescence and Raman spectroscopic results were discussed in detail. The upconversion intensity behavior dependent on the Yb/Ho ratio is explained in terms of the optimal number of Yb3+ ions at the characteristic energy transfer distance around the Ho3+ ion.",
keywords = "Double molybdate, Microwave sol–gel, Spectroscopic properties, Upconversion, Yellow phosphors, double molybdate, CE, FUNDAMENTALS, yellow phosphors, X-RAY-DIFFRACTION, LUMINESCENCE PROPERTIES, CRYSTAL-STRUCTURES, spectroscopic properties, gel, microwave sol&#8211, PHOTOLUMINESCENCE PROPERTIES, MODULATED STRUCTURE, GROWTH, CHEMISTRY, upconversion, RARE-EARTH MOLYBDATES",
author = "Lim, {Chang Sung} and Aleksandr Aleksandrovsky and Victor Atuchin and Maxim Molokeev and Aleksandr Oreshonkov",
note = "Funding Information: This study was supported by the Research Program through the Campus Research Foundation funded by Hanseo University in 2020 (201Yunghap09). Publisher Copyright: {\textcopyright} 2020 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = nov,
doi = "10.3390/cryst10111000",
language = "English",
volume = "10",
pages = "1--14",
journal = "Crystals",
issn = "2073-4352",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "11",

}

RIS

TY - JOUR

T1 - Microwave-employed sol–gel synthesis of scheelite-type microcrystalline aggd(Moo4)2:Yb3+/ho3+ upconversion yellow phosphors and their spectroscopic properties

AU - Lim, Chang Sung

AU - Aleksandrovsky, Aleksandr

AU - Atuchin, Victor

AU - Molokeev, Maxim

AU - Oreshonkov, Aleksandr

N1 - Funding Information: This study was supported by the Research Program through the Campus Research Foundation funded by Hanseo University in 2020 (201Yunghap09). Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/11

Y1 - 2020/11

N2 - AgGd(MoO4)2:Ho3+/Yb3+ double molybdates with five concentrations of Ho3+ and Yb3+ were synthesized by the microwave employed sol–gel based process (MES), and the crystal structure variation, concentration effects, and spectroscopic characteristics were investigated. The crystal structures of AgGd1-x-yHoxYby(MoO4)2 (x = 0, 0.05; y = 0, 0.35, 0.4, 0.45, 0.5)at room temperature were determined in space group I41 /a by Rietveld analysis. Pure AgGd(MoO4)2 has a scheelite-type structure with mixed occupations of (Ag,Gd) sites and cell parameters a = 5.24782 (11) and c = 11.5107 (3) Å, V = 317.002 (17) Å3, Z = 4. In doped samples, the sites are occupied by a mixture of (Ag,Gd,Ho,Yb) ions, which provides a linear cell volume decrease with the doping level increase. Under the excitation at 980 nm, AGM:0.05Ho,yYb phosphors exhibited a yellowish green emission composed of red and green emission bands according to the strong transitions5F5 →5I8 and5S2/5F4 →5I8 of Ho3+ ions. The evaluated photoluminescence and Raman spectroscopic results were discussed in detail. The upconversion intensity behavior dependent on the Yb/Ho ratio is explained in terms of the optimal number of Yb3+ ions at the characteristic energy transfer distance around the Ho3+ ion.

AB - AgGd(MoO4)2:Ho3+/Yb3+ double molybdates with five concentrations of Ho3+ and Yb3+ were synthesized by the microwave employed sol–gel based process (MES), and the crystal structure variation, concentration effects, and spectroscopic characteristics were investigated. The crystal structures of AgGd1-x-yHoxYby(MoO4)2 (x = 0, 0.05; y = 0, 0.35, 0.4, 0.45, 0.5)at room temperature were determined in space group I41 /a by Rietveld analysis. Pure AgGd(MoO4)2 has a scheelite-type structure with mixed occupations of (Ag,Gd) sites and cell parameters a = 5.24782 (11) and c = 11.5107 (3) Å, V = 317.002 (17) Å3, Z = 4. In doped samples, the sites are occupied by a mixture of (Ag,Gd,Ho,Yb) ions, which provides a linear cell volume decrease with the doping level increase. Under the excitation at 980 nm, AGM:0.05Ho,yYb phosphors exhibited a yellowish green emission composed of red and green emission bands according to the strong transitions5F5 →5I8 and5S2/5F4 →5I8 of Ho3+ ions. The evaluated photoluminescence and Raman spectroscopic results were discussed in detail. The upconversion intensity behavior dependent on the Yb/Ho ratio is explained in terms of the optimal number of Yb3+ ions at the characteristic energy transfer distance around the Ho3+ ion.

KW - Double molybdate

KW - Microwave sol–gel

KW - Spectroscopic properties

KW - Upconversion

KW - Yellow phosphors

KW - double molybdate

KW - CE

KW - FUNDAMENTALS

KW - yellow phosphors

KW - X-RAY-DIFFRACTION

KW - LUMINESCENCE PROPERTIES

KW - CRYSTAL-STRUCTURES

KW - spectroscopic properties

KW - gel

KW - microwave sol&#8211

KW - PHOTOLUMINESCENCE PROPERTIES

KW - MODULATED STRUCTURE

KW - GROWTH

KW - CHEMISTRY

KW - upconversion

KW - RARE-EARTH MOLYBDATES

UR - http://www.scopus.com/inward/record.url?scp=85095733882&partnerID=8YFLogxK

U2 - 10.3390/cryst10111000

DO - 10.3390/cryst10111000

M3 - Article

AN - SCOPUS:85095733882

VL - 10

SP - 1

EP - 14

JO - Crystals

JF - Crystals

SN - 2073-4352

IS - 11

M1 - 1000

ER -

ID: 26005325