Nanorods of white light emitting Sr2SiO4:Eu2+: microemulsion-based synthesis, EPR, photoluminescence, and thermoluminescence studies

Gupta, Santosh K.; Bhide, M. K.; Kadam, R.M.; Natarajan, V.; Godbole, S.V.

doi:10.1080/17458080.2013.858833

Cited by 19 publications

(3 citation statements)

References 26 publications

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“…Fore xperimental reasons,s urface adhesion and the stabilizing effect of the surfactant are difficult to determine in situ at the elevated temperature of the reaction (> 200 8 8C). [33] Size, size distribution, and the crystallinity of the resulting nanoparticles further illustrate the effectiveness of the approach, including particle nucleation in the ME and subsequent crystallization upon heating to reflux, which can be designated as ahigh-temperature ME approach (HT-ME).…”

Section: "High-temperature" Microemulsionsmentioning

confidence: 99%

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Microemulsions: Options To Expand the Synthesis of Inorganic Nanoparticles

Wolf

Feldmann

2016

Angew Chem Int Ed

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Microemulsions (MEs) are ideal for obtaining high-quality inorganic nanoparticles. As thermodynamically stable systems with a nanometer-sized droplet phase that serves as a nanoreactor, MEs have obvious advantages for the synthesis of nanoparticles. MEs also have disadvantages, such as their complexity as multicomponent systems, the low amount of obtainable nanoparticles, their limited thermal stability, the fact that hydrolyzable or oxidizable compounds are often excluded from synthesis, the partly elaborate separation of nanoparticles, as well as the removal of surface-adhered surfactants subsequent to synthesis. This Review presents some strategies to further expand the options of ME-based synthesis of inorganic nanoparticles. This comprises the crystallization of nanoparticles in "high-temperature MEs", the synthesis of hollow nanospheres, the use of hydrogen peroxide or liquid ammonia as the polar droplet phase, and the synthesis of base metals and nitrides in MEs.

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Section: "High-temperature" Microemulsionsmentioning

confidence: 99%

“…[28] Alternative ME-made rare-earth-doped luminescent materials require hydrothermal processing and/or powder post-sintering to improve the material crystallinity and to show intense emission of light. [33]…”

Section: "High-temperature" Microemulsionsmentioning

confidence: 99%

Microemulsions: Options To Expand the Synthesis of Inorganic Nanoparticles

Wolf

Feldmann

2016

Angew Chem Int Ed

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“…The serration located between the two peaks is attributed to the different hyperfine splitting caused by the magnetically non-equivalent pairs of 151 Eu and 153 Eu. [35][36][37] Further introduction of Ce 3+ into SrS:(Eu 2+ ) 0.01 enhanced the EPR signal, possibly due to the ET effect for promoting polarization between the different states of electron spin.…”

Section: Paper Materials Advancesmentioning

confidence: 99%

Correlating doping with the stability and color rendition of red phosphors

Chang

Wang³

et al. 2022

Mater. Adv.

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Mikroemulsionen: neue Möglichkeiten zur Erweiterung der Synthese anorganischer Nanopartikel

Wolf

Feldmann

2016

Angewandte Chemie

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Mikroemulsionen (ME) sind ideal, um hochwertige anorganische Nanopartikel zu erhalten. Als thermodynamisch stabile Systeme mit einer Phase aus Nanometer‐großen Tröpfchen, die als Nanoreaktoren dienen, bieten sie für die Nanopartikelsynthese eine Reihe an Vorteilen. ME haben aber auch Nachteile, z. B. ihre Komplexität als Mehrkomponentensysteme, die geringe erhältliche Nanopartikelmenge, die begrenzte thermische Stabilität, der häufige Ausschluss hydrolysierbarer oder oxidierbarer Verbindungen von der Synthese, die partiell sehr aufwendige Abtrennung der Nanopartikel sowie die Entfernung Oberflächen‐gebundener Tenside nach der Synthese. Dieser Aufsatz soll einige Strategien zur Erweiterung der ME‐basierten Synthese anorganischer Nanopartikel aufzeigen. Dazu zählen die Kristallisation von Nanopartikeln mittels “Hochtemperatur‐ME”, die Synthese nanoskaliger Hohlkugeln, die Verwendung von H2O2 oder flüssigem NH3 als polare Tröpfchenphasen sowie die Synthese von unedlen Metallen und Nitriden in ME.

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Nanorods of white light emitting Sr₂SiO₄:Eu²⁺: microemulsion-based synthesis, EPR, photoluminescence, and thermoluminescence studies

Cited by 19 publications

References 26 publications

Microemulsions: Options To Expand the Synthesis of Inorganic Nanoparticles

Microemulsions: Options To Expand the Synthesis of Inorganic Nanoparticles

Correlating doping with the stability and color rendition of red phosphors

Mikroemulsionen: neue Möglichkeiten zur Erweiterung der Synthese anorganischer Nanopartikel

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