Synthesis and Luminescent Properties of Na5LaxM1-x(WO4)4 (M = Eu, Sm, Bi) Red Phosphors for WLED

D.C. Huang; You Fu Zhou; Wen Tao Xu; Zhang Fu Yang; Mao Chun Hong; Yuan Hua Lin; Jian Chang Yu

doi:10.4028/www.scientific.net/AMR.624.244

Paper Titles

Preparation and Properties of Porous β–Tricalcium Phosphate Bone Graft
p.226

Comparing Study on Transmittance of Four Dental All-Ceramic Core Material
p.231

Comparing Study on Translucency of Four Veneered Dental All-Ceramic Core Materials
p.235

Phase Behavior Analysis of Low-Grade Bauxite and Rutile by Carbothermal Reduction-Nitridation
p.239

Synthesis and Luminescent Properties of Na₅La_xM_1-x(WO₄)₄ (M = Eu, Sm, Bi) Red Phosphors for WLED
p.244

Effect of Cu on the Microstructure and the Property of Al-Ce-Ni-Cu Amorphous Nanocomposite Materials
p.248

Study on a High-Temperature Delayed Cross-Linked Acid
p.252

The Mobility and Rheological Properties of Phenyl Silicone Rubber
p.256

Study on Toughening of the Epoxy
p.260

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 624Synthesis and Luminescent Properties of...

Synthesis and Luminescent Properties of Na₅La_xM_1-x(WO₄)₄ (M = Eu, Sm, Bi) Red Phosphors for WLED

Abstract:

A series of Na₅La(WO₄)₄:M³⁺ (M = Eu, Sm, Bi) phosphors have been synthesized successfully by the solid-state reactions. The corresponding crystal structure and lattice parameters were refined by the Rietveld method, and the impact of doped metal ions upon the structure were also studied. The photoluminescent properties were investigated at room temperature. All the samples were observed a strong red emission under 395nm or 465 nm excitation, and the CIE chromaticity coordinates (x = 0.67, y = 0.33) was found to be close to the National Television Standard Committee (NTSC) standard red, implying high color purity. This kind of tungstate phosphor is a promising candidate as the red phosphor for white light-emitting diodes (WLED).

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 624)

Pages:

244-247

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.624.244

Citation:

Cite this paper

Online since:

December 2012

Authors:

D.C. Huang, You Fu Zhou, Wen Tao Xu, Zhang Fu Yang, Mao Chun Hong, Yuan Hua Lin, Jian Chang Yu

Keywords:

Structure Refinement, Tungstate Phosphor, White Light-Emitting Diodes

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] J.H. Yum, S.Y. Seo, S. Lee, Y.E. Sung, Y3Al5O12:Ce0.05 Phosphor Coatings on Gallium Nitride for White Light Emitting Diodes, J. Electrochem. Soc. 150 (2003) H47-H52.

DOI: 10.1149/1.1535207

Google Scholar

[2] J.S. Kim, P.E. Jeon, Y.H. Park, J.C. Choi, H.L. Park, G.C. Kim, T.W. Kim, White-light generation through ultraviolet-emitting diode and white-emitting phosphor, Appl. Phys. Lett. 85 (2004) 3696.

DOI: 10.1063/1.1808501

Google Scholar

[3] J.K. Park, C.H. Kim, S.H. Park, H.D. Park, S.Y. Choi, Application of strontium silicate yellow phosphor for white light-emitting diodes, Appl. Phys. Lett. 84 (2004) 1647.

DOI: 10.1063/1.1667620

Google Scholar

[4] Y. Chen, M. Gong, G. Wang, Q. Su, High efficient and low color-temperature white light-emitting diodes with Tb3Al5O12:Ce3+ phosphor, Appl. Phys. Lett. 91 (2007) 071117.

DOI: 10.1063/1.2771538

Google Scholar

[5] C.H. Chiu, M.F. Wang, C.S. Lee, T.M. Chen, Structural, spectroscopic and photoluminescence studies of LiEu(WO4)2-x(MoO4)x as a near-UV convertible phosphor, J. Solid State Chem. 180 (2007) 619-627.

DOI: 10.1016/j.jssc.2006.11.015

Google Scholar

[6] S. Neeraj, N. Kijima, A.K. Cheetham, Novel red phosphors for solid-state lighting: the system NaM(WO4)2−x(MoO4)x:Eu3+ (M= Gd, Y, Bi), Chem. Phys. Lett. 387 (2004) 2-6.

DOI: 10.1016/j.cplett.2003.12.130

Google Scholar

[7] A.C. Larson, R.B. Von Dreele, General Structure Analysis System (GSAS), Los Alamos National Laboratory Report LAUR. (2004) 86-748.

Google Scholar

[8] V. A. Efremov, V. K. Trunov, T. A. Berezina, Sov. Phys. Cryst. 27 (1982) 77-81.

Google Scholar