Transparent phosphosilicate glasses containing crystals formed during cooling of melts

Liu, S. J.; Zhang, Yanfei; He, Weiguang; Yue, Yuanzheng

doi:10.1016/j.jnoncrysol.2011.07.029

Cited by 19 publications

(12 citation statements)

References 26 publications

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“…The error bar for x = 0 is quite large since a wide dispersion of the refractive index values was observed for this composition. It can be related to the low solubility of P 2 O 5 in silicate-based glasses in agreement with [26]. The refractive index can be considered as almost constant on the composition range, with slightly higher values for x close to 1.5.…”

Section: Physical Propertiessupporting

confidence: 56%

Influence of P2O5 and Al2O3 content on the structure of erbium-doped borosilicate glasses and on their physical, thermal, optical and luminescence properties

Bourhis

Massera

Petit³

et al. 2015

Materials Research Bulletin

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International audienceThe effect of P2O5 and/or Al2O3 addn. in Er-doped borosilicate glasses on the phys., thermal, optical, and luminescence properties is investigated. The changes in these glass properties are related to the glass structure modifications induced by the addn. of P2O5 and/or Al2O3, which were probed by FTIR, 11B MAS NMR and X-ray photoelectron spectroscopies. Variations of the polymn. degree of the silicate tetrahedra and modifications in the [3]B/[4]B ratio are explained by a charge compensation mechanism due to the formation of AlO4, PO4 groups and the formation of Al-O-P linkages in the glass network. From the absorption and luminescence properties of the Er3+ ions at 980 nm and 1530 nm, declustering is suspected for the highest P2O5 concns. while for the highest Al2O3 concns. no declustering is obsd

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Section: Physical Propertiessupporting

confidence: 56%

Influence of P2O5 and Al2O3 content on the structure of erbium-doped borosilicate glasses and on their physical, thermal, optical and luminescence properties

Bourhis

Massera

Petit³

et al. 2015

Materials Research Bulletin

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“…The addition of P 2 O 5 improves the quantum efficiency of RE radioactive transitions [5−7] , and the addition of phosphate also highly limits photo-darkening due to the formation of color centers [8,9] . In phosphosilicate glass research, the solubility of P 2 O 5 in the silicate matrix is an inevitable problem [10] ; moreover, the existence species of phosphate and their interaction with silicate network can greatly influence the structural and spectroscopic properties of the glass. To our knowledge, previous studies focus only on the phosphorous speciation changes in phosphosilicate glasses [11,12] .…”

mentioning

confidence: 99%

Effect of P2O5 addition on the structural and spectroscopic properties of sodium aluminosilicate glass

Ding¹,

Chen²,

Chen³

et al. 2012

Chin. Opt. Lett.

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The structural and spectroscopic properties of Na 2 O-Al 2 O 3 -SiO 2 -xP 2 O 5 glasses (x = 0 to 7 mol%) are investigated. Both Raman and IR spectra reveal that discrete phosphate species ([PO 4 ] −3 , [PO 3 O 1/2 ] −2 ) with low polymerization degree can be formed in the silicate glass. These phosphate structures scavenge non-bridging oxygen ions and cations from the silicate network, resulting in an increase of the glass transition temperature. According to the Judd-Ofelt intensity parameters (Ω2,Ω4,Ω6) of Er 3+ , the asymmetry of local environment around Er 3+ becomes higher, and the bond covalency between Er 3+ and O 2− decreases after P2O5 is introduced. In the emission spectra, photoluminescence intensity increases with increasing P2O5 concentration and the spectra are inhomogeneously broadened, revealing that the ligand electric field around Er 3+ is dramatically changed, and the glass matrix becomes disordered. OCIS codes: 160.2750, 160.5960. doi: 10.3788/COL201210.071602. Recently, phosphosilicate glass has gained considerable attention due to its applications in multiwavelength fiber laser and rare earth (RE) ion-doped optical glass fibers [1−4] . The addition of P 2 O 5 improves the quantum efficiency of RE radioactive transitions [5−7] , and the addition of phosphate also highly limits photo-darkening due to the formation of color centers [8,9] . In phosphosilicate glass research, the solubility of P 2 O 5 in the silicate matrix is an inevitable problem [10] ; moreover, the existence species of phosphate and their interaction with silicate network can greatly influence the structural and spectroscopic properties of the glass. To our knowledge, previous studies focus only on the phosphorous speciation changes in phosphosilicate glasses [11,12] . Few reports mention the host environment around the doped RE ions, the effect of phosphate addition on the emission spectrum, or the inner correlation between spectroscopic properties and the local structure.In this letter, various amounts of P 2 O 5 are introduced into the sodium aluminosilicate glass. The structural evolution induced by the addition of P 2 O 5 is investigated based on Raman and infrared (IR) absorption spectra. Er 3+ ions are added into the glass to investigate the environment of RE ions in our phosphosilicate glasses. With the absorption and emission spectroscopic analysis, the relationship between the glass structure and the spectroscopic properties is discussed.A series of sodium aluminosilicate glass samples with the composition of 30Na 2 O-5Al 2 O 3 -(65-x)SiO 2 -xP 2 O 5 -yEr 2 O 3 (x =0, 1, 3, 5, and 7 mol%, y=0 and 0.75 mol%) were prepared by melt-quenching method. Analytical reagent grade powders of Na 2 CO 3 , Al(OH) 3 , Al(PO 3 ) 3 , SiO 2 , and 99.99% high purity powders of Er 2 O 3 were used as raw materials. Then, 50 g of well-mixed powders were melted in platinum crucible for 60 min in the temperature of 1 450• C. The melt was quenched on a preheated steel plate and then annealed for 3 h at the temperature of 560 • C. ...

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“…However, these techniques are not easy to use, as most of the glasses are stable against crystallization. GCs have been also obtained from controlled cooling of the melt which was found to be an alternative, effective approach to fabricate transparent GCs [84]. A REE-doped phosphosilicate transparent GC was obtained by melting followed by a devitrification during cooling [85].…”

Section: Preparation Of Particle-containing Glassesmentioning

confidence: 99%

Nano-Structured Optical Fibers Made of Glass-Ceramics, and Phase Separated and Metallic Particle-Containing Glasses

Veber

Vermillac

et al. 2019

Fibers

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For years, scientists have been looking for different techniques to make glasses perfect: fully amorphous and ideally homogeneous. Meanwhile, recent advances in the development of particle-containing glasses (PCG), defined in this paper as glass-ceramics, glasses doped with metallic nanoparticles, and phase-separated glasses show that these "imperfect" glasses can result in better optical materials if particles of desired chemistry, size, and shape are present in the glass. It has been shown that PCGs can be used for the fabrication of nanostructured fibers-a novel class of media for fiber optics. These unique optical fibers are able to outperform their traditional glass counterparts in terms of available emission spectral range, quantum efficiency, non-linear properties, fabricated sensors sensitivity, and other parameters. Being rather special, nanostructured fibers require new, unconventional solutions on the materials used, fabrication, and characterization techniques, limiting the use of these novel materials. This work overviews practical aspects and progress in the fabrication and characterization methods of the particle-containing glasses with particular attention to nanostructured fibers made of these materials. A review of the recent achievements shows that current technologies allow producing high-optical quality PCG-fibers of different types, and the unique optical properties of these nanostructured fibers make them prospective for applications in lasers, optical communications, medicine, lighting, and other areas of science and industry.Made of glass, optical fibers inherited all positive and negative properties of this material. Glasses are easy and inexpensive to produce on any scale and in any shape, they can possess high chemical stability and mechanical strength, and have high transparency. However, they could hardly compete, for example, with crystalline materials in thermal conductivity, or rare-earth elements' absorption, emission cross-sections, and available transparency range. Recent advances in glass science showed that properties of this material can be significantly improved if some additional phases are formed or impregnated in the glass. In particular, advances have been achieved in the development of particle-containing glasses: glass-ceramic materials, glasses doped with metallic nanoparticles, and phase-separated glasses. To date, these particle-containing glasses have become quite common and actively used in case of the bulk materials, but are still rather new for fiber optics.The purpose of this review is to summarize recent advances in the fabrication of structured fibers made of particle-containing glasses, their potential benefits, their actual properties, and their potential applications. The review covers three types of particle-containing glasses (PCG): crystalline dielectric particles, i.e., glass-ceramics; metallic nanoparticles (MeNPs); and dielectric amorphous particles, i.e., phase-separated glasses.First, we consider properties of the PCG bulk materials, their potenti...

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Transparent phosphosilicate glasses containing crystals formed during cooling of melts

Cited by 19 publications

References 26 publications

Influence of P2O5 and Al2O3 content on the structure of erbium-doped borosilicate glasses and on their physical, thermal, optical and luminescence properties

Influence of P2O5 and Al2O3 content on the structure of erbium-doped borosilicate glasses and on their physical, thermal, optical and luminescence properties

Effect of P2O5 addition on the structural and spectroscopic properties of sodium aluminosilicate glass

Nano-Structured Optical Fibers Made of Glass-Ceramics, and Phase Separated and Metallic Particle-Containing Glasses

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