Red, green and blue (RGB) emission doped Y3Al5O12 (YAG) phosphors prepared by non-hydrolytic sol–gel route

Pereira, Paula Fabiana dos Santos; Matos, Marcela G.; Ávila, Lilian R.; Nassor, Evelisy C. O.; Cestari, Alexandre; Ciuffi, Kátia J.; Calefi, Paulo S.; Nassar, Eduardo J.

doi:10.1016/j.jlumin.2009.10.019

Cited by 64 publications

(26 citation statements)

References 46 publications

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“…Therefore, these methods are somewhere between HSG and NHSG approach similar to the application of carboxylic acids in NHSG. However this method proved to be successful in the synthesis of amorphous mixed metal oxides [132][133][134][135][136][137][138][139][140][141][142][143]. Alcohols (and silanols) can also react with Si-H groups providing hybrid porous materials or building blocks based on Si-O-Si and Si-O-C bonds (condensation catalyzed by Et 2 NOH) [117,144,145].…”

Section: Alcohols In Nhsgmentioning

confidence: 99%

“…43 nm) was formed after heat treatment of the as-synthesized powder at 600 • C. The authors reported interesting luminescent properties depending on the calcination temperature ( Figure 9). Excitation spectra of the samples were recorded with the fixed emission wavelength at the Eu 3+ : 5 Emission of different colors was achieved using the same host (YAG) but different dopants (Tm 3+ and Tb 3+ ) [133,139].…”

Section: Luminiscent Materialsmentioning

confidence: 99%

“…0.4 ms). Emission of different colors was achieved using the same host (YAG) but different dopants (Tm 3+ and Tb 3+ ) [133,139].…”

Section: Luminiscent Materialsmentioning

confidence: 99%

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The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

et al. 2017

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This review is devoted to non-hydrolytic sol-gel chemistry. During the last 25 years, non-hydrolytic sol-gel (NHSG) techniques were found to be attractive and versatile methods for the preparation of oxide materials. Compared to conventional hydrolytic approaches, the NHSG route allows reaction control at the atomic scale resulting in homogeneous and well defined products. Due to these features and the ability to design specific materials, the products of NHSG reactions have been used in many fields of application. The aim of this review is to present an overview of NHSG research in recent years with an emphasis on the syntheses of mixed oxides, silicates and phosphates. The first part of the review highlights well known condensation reactions with some deeper insights into their mechanism and also presents novel condensation reactions established in NHSG chemistry in recent years. In the second section we discuss porosity control and novel compositions of selected materials. In the last part, the applications of NHSG derived materials as heterogeneous catalysts and supports, luminescent materials and electrode materials in Li-ion batteries are described.

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Section: Alcohols In Nhsgmentioning

confidence: 99%

Section: Luminiscent Materialsmentioning

confidence: 99%

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The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

et al. 2017

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“…Special curiosity has been concentrated on inorganic luminescent materials, which have practical applications in almost all devices involving the artificial production of light [1]. Nowadays, development of field emission displays, flat panels, electroluminescence, scintillators in X-ray, positron emission tomography, and plasma has boosted the request for the luminescent materials with better characteristics in terms of stability, brightness, and  industrial processing skills [2].…”

Section: Introductionmentioning

confidence: 99%

Production, characterization, and luminescent properties of Eu3+ doped yttrium niobate–tantalate films

et al. 2017

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were produced by sol-gel method and grown on single crystalline Si (100) substrate by spin coating approach. Structural properties and thermal behaviours of the films were characterized by means of X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), and thermogravimetry and differential thermal analysis (TG-DTA). Systematic Steady-state photoluminescence and lifetime measurements in a series of yttrium niobium-tantalate with varying amounts of Eu 3+ were presented. The photoluminescence spectra of the films exhibited strong blue (380-400 nm) and red (614 nm) emissions upon ultraviolet excitation. Emission intensities were strongly dependent on the host lattice composition and film morphology. 1.5% Eu 3+ doped films exhibited the brightest luminescence and long lifetime extending to 1.22 ms when excited at 254 nm. To the best of our knowledge, this is the first attempt in the production of M′-YTO, M′-YTNO, and M′-YTNO:Eu 3+ films on single crystalline Si (100) substrate via sol-gel spin coating.

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“…Recently, rare-earth-doped nanocrystals have been widely used as high performance luminescent devices, magnets and other functional materials. YAG has received considerable attention when doped with rare earth ions owing to their interesting properties [16][17][18][19][20][21] . YAG doped with Eu 3+ ions is an important phosphor with a variety of applications in many luminescent and optical devices.…”

Section: Introductionmentioning

confidence: 99%