Enhanced absorbing property of Sm2O2S laser absorbent by doping Er3+/Tm3+

Sun, Weihua; Zhu, K. J.; Xu, Huan; Xiao, Yang; Yu, Mingxun; Li, Xibing; Wang, Lixi; Zhang, Qitu

doi:10.1007/s10854-016-5578-y

Cited by 7 publications

(4 citation statements)

References 15 publications

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“…Owing to their tunable optical emission and absorption properties, lanthanide oxysulfides Ln 2 O 2 S (Ln=lanthanide and yttrium) have found applications in various devices such as phosphors for cathode ray tubes, scintillators, and lasers (emission and absorption,). Following the first studies carried out in the 60’s on the synthesis, morphology and doping of bulk samples, these compounds have been recently obtained also in the form of nanoparticles by means of various synthesis routes.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Oleate‐Stabilized Gd₂O₂S Nanoplates in Inert and Oxidizing Atmospheres

et al. 2019

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Capping ligands play an important role in the chemistry of nanoparticles synthesized with organic surfactants. This is relevant to a number of device applications where heating may cause major modifications of crystalline nanoparticles including amorphization, surface rearrangements or sintering. Ultrathin monodisperse Ln 2 O 2 S x oxysulfide nanoparticles (Ln = lanthanide) obtained in a mixture of oleylamine, oleic acid and 1-octadecene show promising luminescence and light absorption properties. In view of applications, one open question concerns the thermal behavior and the role of the ligands on the thermal reactivity of the nanoparticles. In this report, we show that the thermal stability of Gd 2 O 2 S x nanocrystals is limited because of their non-stoichiometric composition and strongly depends on the annealing atmosphere. The sintering temperature of the nanoparticles is lower in air than in inert atmosphere because of a rapid degradation of the ligands. Annealing the nanoparticles in air enables removing the ligands without altering the nanocrystals structure. The decomposition of the Gd 2 O 2 S x nanocrystals in inert atmosphere exhibits a complex multistep behavior that was precisely modeled. This work gives a comprehensive description of the stability conditions of lanthanide oxysulfide nanoparticles. It establishes the conditions for their practical use and opens the way to major improvements of the surface activity of Ln 2 O 2 S nanoparticles and related nanocrystals.

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Section: Introductionmentioning

confidence: 99%

Thermal Stability of Oleate‐Stabilized Gd₂O₂S Nanoplates in Inert and Oxidizing Atmospheres

et al. 2019

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“…In comparison, SmBO 3 presents a reflectivity of 0.6% but endures a phase transition at 1,200 • C (He et al, 2009). Doping with erbium or thulium may also be an efficient way to slightly enhance the absorption properties of Sm 2 O 2 S (Sun et al, 2017).…”

Section: Laser Absorption Of Samarium Oxysulfidementioning

confidence: 99%

Metal Oxysulfides: From Bulk Compounds to Nanomaterials

Larquet

Carenco

2020

Front. Chem.

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This review summarizes the syntheses and applications of metal oxysulfides. Bulk compounds of rare earth and transition metals are discussed in the section Introduction. After a presentation of their main properties and applications, their structures are presented and their syntheses are discussed. The section Bulk Materials and Their Main Applications is dedicated to the growing field of nanoscaled metal oxysulfides. Synthesis and applications of lanthanide-based nanoparticles are more mature and are discussed first. Then, works on transition-metal based nanoparticles are presented and discussed. Altogether, this review highlights the opportunities offered by metal oxysulfides for application in a range of technological fields, in relation with the most advanced synthetic routes and characterization techniques.

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“…So far, most of them rely on organic layers, easy to process to reach tunable thicknesses but sometimes subject to photobleaching. On the other side, inorganic compounds such as lanthanide oxysulfide phases, of general formula Ln 2 O 2 S (Ln: lanthanide), present an interest for these technologies, but they were usually deposited by physical deposition such as electron-beam deposition (e.g., Y 2 O 2 S) or only studied as raw micrometric powders (e.g., Sm 2 O 2 S, doped or undoped). , Our recent work on lanthanide oxysulfide nanoplates provides us with a privileged access to composition-controlled nanoplates with a narrow size distribution for a large range of Ln. In particular, we mastered the preparation of mixed-lanthanide nanoplates with tunable band gap and magnetic properties while providing an in-depth understanding of their structural and surface features. , Although the nanoparticles are covered with oleates at the end of the synthesis, which may hinder their applications based on photoluminescence, we showed that a mild calcination of the powder at 350 °C was enough to remove most of the organic ligands while preserving the crystallographic integrity of the phase .…”

Section: Introductionmentioning

confidence: 99%

“…On the other side, inorganic compounds such as lanthanide oxysulfide phases, of general formula Ln 2 O 2 S (Ln: lanthanide), present an interest for these technologies, 16 but they were usually deposited by physical deposition such as electron-beam deposition (e.g., Y 2 O 2 S) 17 or only studied as raw micrometric powders (e.g., Sm 2 O 2 S, doped or undoped). 18,19 Our recent work on lanthanide oxysulfide nanoplates provides us with a privileged access to composition-controlled nanoplates with a narrow size distribution for a large range of Ln. In particular, we mastered the preparation of mixed-lanthanide nanoplates with tunable band gap and magnetic properties while providing an in-depth understanding of their structural and surface features.…”

Section: ■ Introductionmentioning

confidence: 99%

Optical-Quality Thin Films with Tunable Thickness from Stable Colloidal Suspensions of Lanthanide Oxysulfide Nanoplates

2022

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In modern laser technologies, there is a need for coatings that would be compatible with flexible substrates while retaining the advantages of inorganic compounds in terms of robustness. As a first step in this direction, we developed here thin films of lanthanide oxysulfide, of optical quality, prepared by low-temperature dip coating. As a model compound in the family of oxysulfides, (Gd,Ce)2O2S anisotropic nanoplates were used. The films were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and in situ UV and IR spectroscopic ellipsometry, showing that the band gap of the materials was preserved through the deposition process. The thickness of the films was tuned in a broad range, from a few nanometers to 150 nm, using different concentrations of the colloidal suspensions as well as single-layer and multilayer deposition. Lastly, thermal treatment of the thin films was optimized to remove the stabilizing organic ligands of the nanoparticles while preserving their integrity, as confirmed by SEM and XRD.

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Enhanced absorbing property of Sm2O2S laser absorbent by doping Er3+/Tm3+

Cited by 7 publications

References 15 publications

Thermal Stability of Oleate‐Stabilized Gd₂O₂S Nanoplates in Inert and Oxidizing Atmospheres

Thermal Stability of Oleate‐Stabilized Gd₂O₂S Nanoplates in Inert and Oxidizing Atmospheres

Metal Oxysulfides: From Bulk Compounds to Nanomaterials

Optical-Quality Thin Films with Tunable Thickness from Stable Colloidal Suspensions of Lanthanide Oxysulfide Nanoplates

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Enhanced absorbing property of Sm2O2S laser absorbent by doping Er3+/Tm3+

Cited by 7 publications

References 15 publications

Thermal Stability of Oleate‐Stabilized Gd2O2S Nanoplates in Inert and Oxidizing Atmospheres

Thermal Stability of Oleate‐Stabilized Gd2O2S Nanoplates in Inert and Oxidizing Atmospheres

Metal Oxysulfides: From Bulk Compounds to Nanomaterials

Optical-Quality Thin Films with Tunable Thickness from Stable Colloidal Suspensions of Lanthanide Oxysulfide Nanoplates

Contact Info

Product

Resources

About

Thermal Stability of Oleate‐Stabilized Gd₂O₂S Nanoplates in Inert and Oxidizing Atmospheres

Thermal Stability of Oleate‐Stabilized Gd₂O₂S Nanoplates in Inert and Oxidizing Atmospheres