Photoluminescence of Ce[sup 3+]-Activated β-SiAlON Blue Phosphor for UV-LED

Ryu, Jeong Ho; Won, Hyung Sik; Park, Youn-Gon; Kim, Sang Hyun; Song, Won Young; Suzuki, Hideo; Yoon, Chang‐Bun; Kim, Do Hwan; Park, Woo Jung; Yoon, Chang-Hwan

doi:10.1149/1.3269047

Cited by 20 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The oxynitride material b-SiAlON activated with Ce 3? was investigated by Ryu et al [116]. The hexagonal compound was prepared with various amounts of the dopant and suitably characterized using XRD and other techniques.…”

Section: Blue Phosphors-other Hostsmentioning

confidence: 99%

Inorganic Phosphor Materials for Lighting

2016

View full text Add to dashboard Cite

This chapter addresses the development of inorganic phosphor materials capable of converting the near UV or blue radiation emitted by a light emitting diode to visible radiation that can be suitably combined to yield white light. These materials are at the core of the new generation of solid-state lighting devices that are emerging as a crucial clean and energy saving technology. The chapter introduces the problem of white light generation using inorganic phosphors and the structureproperty relationships in the broad class of phosphor materials, normally containing lanthanide or transition metal ions as dopants. Radiative and non-radiative relaxation mechanisms are briefly described. Phosphors emitting light of different colors (yellow, blue, green, and red) are described and reviewed, classifying them in different chemical families of the host (silicates, phosphates, aluminates, borates, and non-oxide hosts). This research field has grown rapidly and is still growing, but the discovery of new phosphor materials with optimized properties (in terms of emission efficiency, chemical and thermal stability, color, purity, and cost of fabrication) would still be of the utmost importance.

show abstract

Section: Blue Phosphors-other Hostsmentioning

confidence: 99%

Inorganic Phosphor Materials for Lighting

2016

View full text Add to dashboard Cite

show abstract

“…These various structures can provide the Ce 3+ /Eu 2+ with rich and different ligand environments, and adjust the emission and absorption wavelengths. Some compounds have been extensively studied, such as Ca-␣-SiAlON:Eu 2+ [6], ␤-SiAlON:Ce 3+ [7], SrSi 2 O 2 N 2 :Eu 2+ [8], Ba 3 Si 6 O 12 N 2 :Eu 2+ [9], CaAlSiN 3 :Eu 2+ [10], M 1 M 2 Si 4 N 7 :Eu 2+ (M 1 = Ca, Sr, Ba; M 2 = Al, Y) [11,12] and BaSi 3 Al 3 O 4 N 5 :Eu 2+ [13]. The above luminescent materials combined the unique luminescence characteristics from 5d to 4f transitions of rare-earth ions and the thermal and chemical stability of host materials.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence properties of Y5Si3O12N:Ce3+ blue-emitting phosphors for white LED

Guo

Yang

et al. 2012

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…4 However, this approach has obvious drawbacks such as low color rendering index (CRI), high correlated color temperature (CCT), unstable emitting color with different current and temperature because of lacking red component and bad thermal quenching characteristic. To overcome above problems, rare earth doped oxynitrides and nitrides phosphors are developed, such as Eu 2+ doped α-SiAlON, [12][13][14][15][16] CaAlSiN 3 ,17,18 and M 2 Si 5 N 8 (M = Ca, Sr, and Ba), [19][20][21][22][23] which have high stability and brightness. [5][6][7][8][9] However, this method also lacks of red phosphors with high brightness and physical and chemical stability.…”

mentioning

confidence: 99%

Crystal Structure and Photoluminescence Properties of CaSr₂Al₂O₆:Eu³⁺Phosphors

Shi

Wang

2013

ECS J. Solid State Sci. Technol.

View full text Add to dashboard Cite

The novel red-emitting phosphors of Eu 3+ -activated CaSr 2 Al 2 O 6 :Eu 3+ were synthesized by conventional solid state reaction. Crystal structure, characteristic luminescence properties and charge compensators effect (Li + , Na + , K + ) are investigated in detail by X-ray diffraction refinement and photoluminescence spectra measurement. CaSr 2 Al 2 O 6 crystallizes in a cubic structure with the space group of Pa(3)-205, and cell parameter a = b = c = 15.06217(5)Å. The difference between the emission spectra of CaSr 1.90 Al 2 O 6 :0.10Eu and Ca 0.90 Sr 2 Al 2 O 6 :0.10Eu revealed that the Eu 3+ ions occupied nonequivalent Sr 2+ or Ca 2+ sites with different site symmetry. When Eu 3+ ions occupied Sr 2+ sites without inversion symmetry, the intensity ratio of ( 5 D 0 -7 F 2 )/( 5 D 0 -7 F 1 ) is higher and thus a better color purity. CaSr 1.92 Al 2 O 6 :0.08Eu 3+ exhibits strong absorption at 394 nm and intense red emission with CIE chromaticity coordinates (0.6408, 0.3581). The critical distance of the concentration quenching and thermal stability are also investigated.

show abstract

Photoluminescence of Ce[sup 3+]-Activated β-SiAlON Blue Phosphor for UV-LED

Cited by 20 publications

References 25 publications

Inorganic Phosphor Materials for Lighting

Inorganic Phosphor Materials for Lighting

Photoluminescence properties of Y5Si3O12N:Ce3+ blue-emitting phosphors for white LED

Crystal Structure and Photoluminescence Properties of CaSr₂Al₂O₆:Eu³⁺Phosphors

Contact Info

Product

Resources

About

Photoluminescence of Ce[sup 3+]-Activated β-SiAlON Blue Phosphor for UV-LED

Cited by 20 publications

References 25 publications

Inorganic Phosphor Materials for Lighting

Inorganic Phosphor Materials for Lighting

Photoluminescence properties of Y5Si3O12N:Ce3+ blue-emitting phosphors for white LED

Crystal Structure and Photoluminescence Properties of CaSr2Al2O6:Eu3+Phosphors

Contact Info

Product

Resources

About

Crystal Structure and Photoluminescence Properties of CaSr₂Al₂O₆:Eu³⁺Phosphors