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Sigma-Aldrich

Yttrium oxide, europium doped

greener alternative

99% trace metals basis

Synonym(s):

Europium doped yttria, Europium yttrium oxide, Red phosphor

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About This Item

Empirical Formula (Hill Notation):
Y1.92Eu0.08O3
CAS Number:
Molecular Weight:
230.85
EC Number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.23

Assay

99% trace metals basis

form

powder

composition

Y1.92Eu0.08O3

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

particle size

4-8 μm

mp

>1600 °C (lit.)

fluorescence

λex 611 nm; λem ±2 nm (UV excitation source)

greener alternative category

SMILES string

[Eu].O=[Y]O[Y]=O

InChI

1S/Eu.3O.2Y

InChI key

CVLPANXSBBGVHI-UHFFFAOYSA-N

General description

Color coordinate, x: 0.645 +/- 0.015
Color coordinate, y: 0.345 +/- 0.015
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Yttrium oxide, europium doped (Y2O3/Eu) is a luminescent material with high chemical stability and good resistance to corrosion. It is considered one of the best red oxide phosphors under the excitation wavelength (λ) of ~254 nm with a high melting point and high thermal conductivity. It can be synthesized by a variety of techniques such as sol-gel, solid-state reaction, hydrothermal synthesis, and wet chemical synthesis.

Application

Y2O3/Eu can be used for a variety of sustainable applications such as dye-sensitized solar cells (DSSCs), luminescent sensors, and light-emitting displays (LEDs).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Gozzi, D.; et al.
Chemistry of Materials, 20, 5666-5666 (2008)
Luqing Xi et al.
Dalton transactions (Cambridge, England : 2003), 46(40), 13835-13844 (2017-10-03)
A novel red phosphor, NaHF
Site-selective deposition and micropatterning of visible-light-emitting europium-doped yttrium oxide thin film on self-assembled monolayers
Masuda Y, et al.
Chemistry of Materials, 19(5), 1002-1008 (2007)
Luminescence performance of europium-doped yttrium oxide thin films
Jayaramaiah JR, et al.
Journal of Luminescence, 157(19), 63-68 (2015)

Articles

White solid-state light can be generated using three different approaches: By employing three diodes that emit red, green and blue light respectively, by using a near-UV LED that excites several phosphors that emit over the complete spectral range, or the third, most widely used alternative entailing down-conversion of a portion of blue LED light to longer wavelengths in such a manner that white light emerges.

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