Sol-gel synthesis of RE 3+-activated CaWO 4 phosphores

Arturas Žalga; Rokas Sažinas; Edita Garškaite; Aivaras Kareiva; Tomas Bareika; Gintautas Tamulaitis; Remigijus Juškenas; Rimantas Ramanauskas

Sol-gel synthesis of RE ³⁺-activated CaWO ₄ phosphores

Arturas Žalga^*
, Rokas Sažinas
, Edita Garškaite
, Aivaras Kareiva
, Tomas Bareika
, Gintautas Tamulaitis
, Remigijus Juškenas
, Rimantas Ramanauskas

^*Corresponding author for this work

Vilnius University
Center for Physical Sciences and Technology

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

12 Citations (Scopus)

Abstract

A series of red-emitting phosphores containing CaWO ₄ : RE (RE = Tb ³⁺, E u ³⁺, S m ³⁺) was prepared by an aqueous sol-gel method using tungsten (VI) oxide, WO ₃, calcium nitrate tetrahidrate, Ca(NO ₃) ₂ · 4H ₂O, terbium oxide, Tb ₄O ₇, europium oxide, Eu ₂O ₃, and samarium oxide, Sm ₂O ₃ as starting materials. Synthesized ceramics were characterized using infrared spectroscopy (IR), X-ray difraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) measurements. Te obtained results clearly show that only CaWO ₄ : Eu phosphor can be efectively excited under photoexcitation at 280, 360 and 460 nm and exhibits red emission in the vicinity of 620 nm.

Original language	English
Pages (from-to)	169-174
Number of pages	6
Journal	Chemija
Volume	20
Issue number	3
Publication status	Published - 2009
Externally published	Yes

Keywords

CaWO phosphores
Lanthanide doping
Photolumines-cence
Sol-gel synthesis

Cite this

@article{73961654687f40908827d398c9df43aa,

title = "Sol-gel synthesis of RE 3+-activated CaWO 4 phosphores",

abstract = "A series of red-emitting phosphores containing CaWO 4 : RE (RE = Tb 3+, E u 3+, S m 3+) was prepared by an aqueous sol-gel method using tungsten (VI) oxide, WO 3, calcium nitrate tetrahidrate, Ca(NO 3) 2 · 4H 2O, terbium oxide, Tb 4O 7, europium oxide, Eu 2O 3, and samarium oxide, Sm 2O 3 as starting materials. Synthesized ceramics were characterized using infrared spectroscopy (IR), X-ray difraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) measurements. Te obtained results clearly show that only CaWO 4 : Eu phosphor can be efectively excited under photoexcitation at 280, 360 and 460 nm and exhibits red emission in the vicinity of 620 nm.",

keywords = "CaWO phosphores, Lanthanide doping, Photolumines-cence, Sol-gel synthesis",

author = "Arturas {\v Z}alga and Rokas Sa{\v z}inas and Edita Gar{\v s}kaite and Aivaras Kareiva and Tomas Bareika and Gintautas Tamulaitis and Remigijus Ju{\v s}kenas and Rimantas Ramanauskas",

year = "2009",

language = "English",

volume = "20",

pages = "169--174",

journal = "Chemija",

issn = "0235-7216",

publisher = "Lietuvos Mokslu Akademijos",

number = "3",

}

TY - JOUR

T1 - Sol-gel synthesis of RE 3+-activated CaWO 4 phosphores

AU - Žalga, Arturas

AU - Sažinas, Rokas

AU - Garškaite, Edita

AU - Kareiva, Aivaras

AU - Bareika, Tomas

AU - Tamulaitis, Gintautas

AU - Juškenas, Remigijus

AU - Ramanauskas, Rimantas

PY - 2009

Y1 - 2009

N2 - A series of red-emitting phosphores containing CaWO 4 : RE (RE = Tb 3+, E u 3+, S m 3+) was prepared by an aqueous sol-gel method using tungsten (VI) oxide, WO 3, calcium nitrate tetrahidrate, Ca(NO 3) 2 · 4H 2O, terbium oxide, Tb 4O 7, europium oxide, Eu 2O 3, and samarium oxide, Sm 2O 3 as starting materials. Synthesized ceramics were characterized using infrared spectroscopy (IR), X-ray difraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) measurements. Te obtained results clearly show that only CaWO 4 : Eu phosphor can be efectively excited under photoexcitation at 280, 360 and 460 nm and exhibits red emission in the vicinity of 620 nm.

AB - A series of red-emitting phosphores containing CaWO 4 : RE (RE = Tb 3+, E u 3+, S m 3+) was prepared by an aqueous sol-gel method using tungsten (VI) oxide, WO 3, calcium nitrate tetrahidrate, Ca(NO 3) 2 · 4H 2O, terbium oxide, Tb 4O 7, europium oxide, Eu 2O 3, and samarium oxide, Sm 2O 3 as starting materials. Synthesized ceramics were characterized using infrared spectroscopy (IR), X-ray difraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) measurements. Te obtained results clearly show that only CaWO 4 : Eu phosphor can be efectively excited under photoexcitation at 280, 360 and 460 nm and exhibits red emission in the vicinity of 620 nm.

KW - CaWO phosphores

KW - Lanthanide doping

KW - Photolumines-cence

KW - Sol-gel synthesis

UR - https://www.scopus.com/pages/publications/84860855444

M3 - Article

AN - SCOPUS:84860855444

SN - 0235-7216

VL - 20

SP - 169

EP - 174

JO - Chemija

JF - Chemija

IS - 3

ER -

Sol-gel synthesis of RE ³⁺-activated CaWO ₄ phosphores

Abstract

Keywords

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