Synthesis and VUV photoluminescence of green-emitting X2–Y2SiO5:Tb3+ phosphor for PDP application

Zhang, Zhan Hui; Wang, Yu Hua; Yan, Hongxia; Liu, Wen Jing

doi:10.1016/j.jallcom.2006.06.087

Cited by 21 publications

(5 citation statements)

References 14 publications

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“…Luminescence could be attributed to f-f or f-d transitions of rare earth ions and their intensity would depend on the site symmetry or nature of ligands [2]. Rare earth doped luminescent materials find practical applications such as detectors, tunable LED's CFL, FEDs etc [3][4][5][6][7]. Among the rare earth ions, trivalent europium (Eu 3 þ ) has been recognized as an efficient red luminescent phosphor due to its 5 D 0 -7 F j (j ¼0, 1, 2, 3 and 4) transitions [8,9].…”

Section: Introductionmentioning

confidence: 99%

100MeV Si8+ ion induced luminescence and thermoluminescence of nanocrystalline Mg2SiO4:Eu3+

Prashantha¹,

Lakshminarasappa²,

Singh³

2012

Journal of Luminescence

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a b s t r a c tNanoparticles of Mg 2 SiO 4 :Eu 3 þ have been prepared by the solution combustion technique and the grain size estimated by PXRD is found to be in the range 40-50 nm. Ionoluminescence (IL) studies of Mg 2 SiO 4 :Eu 3 þ pellets bombarded with 100 MeV Si 8 þ ions with fluences in the range 1.124-22.48 Â 10 12 ions cm À 2 are carried out at IUAC, New Delhi, India. Five prominent IL bands with peaks at 580 nm, 590 nm, 612 nm, 655 nm and 705 nm are recorded. These characteristic emissions are attributed to the luminescence centers activated by Eu 3 þ cations. It is found that IL intensity decreases rapidly in the beginning. Later on, the intensity decreases slowly with further increase of ion fluence. The reduction in the ionoluminescence intensity with increase of ion fluence might be attributed to degradation of Si-O (n 3 ) and Si-O (2n 3 ) bonds present on the surface of the sample. The red emission with peak at 612 nm is due to characteristic emission of 5 D 0 -7 F 2 of the Eu 3 þ cations. Thermoluminescence (TL) studies of Mg 2 SiO 4 :Eu 3 þ pellets bombarded with 100 MeV Si 8 þ cations with fluences in the range 5 Â 10 11 ions cm À 2 to 5 Â 10 13 ions cm À 2 are made at RT. Two prominent and well resolved TL glows with peaks at $ 220 1C and $ 370 1C are observed. It is observed that TL intensity increases with increase of ion fluence. This might be due to creation of new traps during swift heavy ion irradiation.

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Section: Introductionmentioning

confidence: 99%

100MeV Si8+ ion induced luminescence and thermoluminescence of nanocrystalline Mg2SiO4:Eu3+

Prashantha¹,

Lakshminarasappa²,

Singh³

2012

Journal of Luminescence

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“…The demand for developing efficient luminescent materials such as rare earth (RE) doped powders have attracted more attention because of their possible photonic applications [1][2][3]. Among the RE ions, trivalent europium (Eu 3+ ) has been recognized as an efficient red luminescent phosphors due to its 5 D 0 → 7 F J(=0, 1,2,3,4) transitions which are used in color television displays and mercury free-lamps [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Among the RE ions, trivalent europium (Eu 3+ ) has been recognized as an efficient red luminescent phosphors due to its 5 D 0 → 7 F J(=0, 1,2,3,4) transitions which are used in color television displays and mercury free-lamps [4,5]. In addition to the 5 D 0 transitions the higher 5 D ( 5 D 1 , 5 D 2 , 5 D 3 ) levels are rarely observed depending on the host lattice and the doping concentration [6].…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence properties of Eu3+:MgAl2O4 powder phosphor

Omkaram

Rao

Buddhudu

2009

Journal of Alloys and Compounds

111

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“…Many elements can be accommodated in spinel or spinel-like structures which allows for a wide array of possible spinel formulations, and a correspondingly large flexibility for tailoring these oxides for specific applications. As such, spinels find use in many applications due to their optical, magnetic and (electro) chemical properties, examples of which are cathodes, sensors, phosphors in solid state lasers as well as catalysts, and [1][2][3][4][5][6][7][8][9] refractory [10][11][12][13][14][15]. The most common refractory spinel structure is MgAl 2 O 4 in which 8 of 64 tetrahedral sites are occupied by Mg 2+ and 16 of 32 octahedral sites are occupied by Al 3+ [9].…”

Section: Introductionmentioning

confidence: 99%