Red persistent and photo-stimulated luminescence properties of SrCaSi5N8: Eu2+, Tm3+ solid solution

Wang, Jin; Zhang, Haoran; Lei, Bingfu; Dong, Hanwu; Zhang, Haiming; Liu, Yingliang; Lai, Nuolin; Fang, Yun; Chen, Zhijie

doi:10.1016/j.optmat.2014.04.048

Cited by 19 publications

(5 citation statements)

References 29 publications

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“…Owing to the complex polymorphism of yttrium silicates [11][12][13][20][21][22] and the strict stoichiometric ratio required for the starting materials, 23,24 the synthesis of single-phase yttrium silicates is a major obstacle to the research and application of these oxides. At present, the main preparation methods employed for powders are sol-gel (including the precipitation technique), [25][26][27][28][29][30][31][32][33][34] hydrothermal synthesis, [35][36][37][38] solidsolid reaction, [39][40][41][42] solid-liquid reaction, [43][44][45][46][47] high-P/high-T synthesis, 21 and molten salt flux growth (or the Czochralski technique); 20,39,[48][49][50][51] and for coatings and thin films are chemical vapour deposition (CVD), atomic layer deposition (ALD), radio frequency (rf)-sputtering, magnetron sputtering, pulsed laser deposition (PLD), plasma spraying, electrophoretic deposition (EPD), spin coating, and dip coating, 40,[52][53][54][55]…”

Section: Introductionmentioning

confidence: 99%

Recent progress on synthesis, multi-scale structure, and properties of Y–Si–O oxides

Sun

Zhou

2014

International Materials Reviews

107

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Yttrium silicates (Y-Si-O oxides), including Y 2 Si 2 O 7 , Y 2 SiO 5 , and Y 4·67 (SiO 4 ) 3 O apatite, have attracted wide attentions from material scientists and engineers, because of their extensive polymorphisms and important roles as grain boundary phases in improving the high-temperature mechanical/thermal properties of Si 3 N 4 and SiC ceramics. Recent interest in these materials has been renewed by their potential applications as hightemperature structural ceramics, oxidation protective coatings, and environmental barrier coatings (EBCs).

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Section: Introductionmentioning

confidence: 99%

Recent progress on synthesis, multi-scale structure, and properties of Y–Si–O oxides

Sun

Zhou

2014

International Materials Reviews

107

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Section: Discussionmentioning

confidence: 99%

“…146,147 A limited number of red nitride phosphors have been developed, belonging to the MSi 5 N 8 (M = Ca, Sr, Ba) family as summarized in Table V. [148][149][150][151][152][153][154][155][156] The presence of inherent defects, as well as the Red persistent luminescence is rare, and nitride phosphors offer a wide array of systems for persistent luminescent applications. Apart from the exciting applications, comprehending the mechanism of this phenomenon would mean gaining control over the discovery, design, and development of more persistent luminescent phosphor.…”

Section: Discussionmentioning

confidence: 99%

Critical Review—Narrow-Band Emission of Nitride Phosphors for Light-Emitting Diodes: Perspectives and Opportunities

Leaño

Fang

Liu

2017

ECS J. Solid State Sci. Technol.

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Searching for narrow-band red-emitting and thermally stable phosphors is the ultimate strategy toward enhanced performance of phosphor converted light emitting diodes (pc-LED). The red emission is assured by the nitride host because of its relatively more covalent character than oxides and sulfides; however, the narrow emission is attributed to crystallographic, morphological, and electronic considerations. The symmetric coordination site ensures equal ligand effect in all direction fits well with the configuration of Eu 2+ f orbitals in the excited state, as observed in cuboid nitrides. Further, thermal stability is ascribed not only to suitable bandgap but more specifically, a relatively distant location of the lowest 5d level from the bottom of the conduction band (CB) that consequently entails high energy to quench excited electrons by exciting them further up to the CB. Modes toward the development of new nitride hosts with potentially narrow-band emission have been identified. A viewpoint on light-emitting diode (LED), backlighting, and laser lighting, which remains the most economically-rewarding phosphors application, is presented. Other exciting frontiers, such as agricultural illumination and persistent luminescence, maximize nitride systems that have other properties other than the stringent narrow-band red emission and excellent thermal stability required for the desired improvement of the mainstream LED application. is a Critical Review in Electrochemical and Solid State Science and Technology (CRES 3 T). This article was reviewed by Anant Setlur (setlur@ge.com) and Jing Wang (ceswj@mail.sysu.edu.cn). This paper is part of the JSS Focus Issue on Visible and Infrared Phosphor Research and Applications.The discovery, development, and commercialization of phosphors are expected to satisfactorily fare with the benchmark set for phosphor converted-LEDs. First, the excitation wavelength of the phoshpors must be compatible with the blue LED pump, thereby emitting the desired colors and consequently generating white light. Second, the quantum efficiency should be high. Third, phosphor must have a high absorption rate in the LED range, which technically narrows the choices to those that are excitable through 4f → 5d, d → d, np → nd, and ns → np transitions. Fourth, it must have high thermal quenching temperature. Fifth, the inherent stability against moisture and continuous irradiation ensures the durability and longevity of the device. Sixth, a rational design must be presented for the synthesis conditions from the selection of starting materials, synthesis strategy, and costs to allow the smooth cross-over to eventual industrial-scale production. 1,2Tuning the phosphor photoluminescence requires a tunable phosphor and a set of strategies to introduce changes in intensity, emission wavelength, and full width at half-maximum (fwhm). Moreover, the following are of paramount consideration in tuning the phosphor photoluminescence. First, a clear understanding of crystal and local structures and the investigati...

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“…Initially, Eu 2+/3+ was highly explored for red phosphors, but recently other lanthanides, especially Sm 3+ have also been gaining focus for red emissions. Some of the prominent red phosphors are CaS:Eu 2+ ,Dy 3+ ; 82 Ca 2 SnO 4 :Sm 3+ ; 83 SrCaSi 5 N 8 :Eu 2+ ,Tm 3+ 84 and Y 2 O 2 S:Eu 3+ ,Mg 2+ ,Ti 4+ . 85 Warm colour emitting phosphors are uncommon and rarely activated by sunlight, which is currently limiting but emphasizing enhancement in this range of emission.…”

Section: Modelsmentioning

confidence: 99%

Recent progress on lanthanide-based long persistent phosphors: an overview

Vaidyanathan

2023

J. Mater. Chem. C

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Red persistent and photo-stimulated luminescence properties of SrCaSi5N8: Eu2+, Tm3+ solid solution

Cited by 19 publications

References 29 publications

Recent progress on synthesis, multi-scale structure, and properties of Y–Si–O oxides

Recent progress on synthesis, multi-scale structure, and properties of Y–Si–O oxides

Critical Review—Narrow-Band Emission of Nitride Phosphors for Light-Emitting Diodes: Perspectives and Opportunities

Recent progress on lanthanide-based long persistent phosphors: an overview

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