Synthesis and Na+ conduction properties of Nasicon-type glass–ceramics in the system Na2O–Y2O3–R2O3–P2O5–SiO2 (R = rare earth) and effect of Y substitution

AbstractThe glass-ceramics of the phosphorus containing Na5RSi4O12type (R=rare earth) Na+-superionic conductors (Narpsio-V) in the system Na2O-Sm2O3-P2O5-SiO2 were prepared by crystallization of glasses with the composition Na3+3x-ySm1-xPySi3-yO9. The optimum conditions for crystallization were discussed with reference to the conduction properties and the preparation of uncracked bulky glass-ceramic Narpsio-V. The ionic conductivity of the glass-ceramic Na3.9Sm0.6P0.3Si2.7O9 at 300°C was drastically enhanced from 2.38×10-2 S/cm to 7.15×10-2 S/cm upon implantation of 200 keV Na+ ions to a fluence of 1 × 1015 cm-2.

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Synthesis and Na+ Conduction Properties of Phosphosilicate Glass-Ceramics in the Y-Nd Mixed System

ECS Transactions ◽

10.1149/1.3242258 ◽

2019 ◽

Vol 16 (51) ◽

pp. 429-433

Author(s):

Toshinori Okura ◽

Mitsugu Saimaru ◽

Hideki Monma

Keyword(s):

Glass Ceramics ◽

Mixed System ◽

Phosphosilicate Glass ◽

Conduction Properties

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A Unique Approach to Characterization of Sol-Gel-Derived Rare-Earth-Doped Oxyfluoride Glass-Ceramics

Journal of the American Ceramic Society ◽

10.1111/jace.12053 ◽

2012 ◽

Vol 96 (2) ◽

pp. 476-480 ◽

Cited By ~ 1

Author(s):

Go Kawamura ◽

Ryota Yoshimura ◽

Kazunari Ota ◽

Song-Yul Oh ◽

Norio Hakiri ◽

...

Keyword(s):

Rare Earth ◽

Sol Gel ◽

Glass Ceramics ◽

Oxyfluoride Glass ◽

Unique Approach ◽

Rare Earth Doped

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SiO2-SnO2:Er3+ Glass-Ceramic Monoliths

10.20944/preprints201807.0081.v1 ◽

2018 ◽

Author(s):

Lam Thi Ngoc Tran ◽

Damiano Massella ◽

Lidia Zur ◽

Alessandro Chiasera ◽

Stefano Varas ◽

...

Keyword(s):

Rare Earth ◽

Optical Sensors ◽

Tin Dioxide ◽

Sol Gel ◽

Glass Ceramics ◽

Building Blocks ◽

Spectroscopic Properties ◽

Silica Matrix ◽

Rare Earth Ions ◽

Planar Waveguides

The development of efficient luminescent systems, such as microcavities, solid state lasers, integrated optical amplifiers, optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare earth ions because they exhibit specific morphologic, structural and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in silica matrix, tin dioxide presents some interesting peculiarities, e.g. the presence of tin dioxide nanocrystals allows increase in both solubility and emission of rare earth ions. Here, we focus our attention on Er3+ - doped silica – tin dioxide photonic glass-ceramics fabricated by sol-gel route. Although the SiO2-SnO2:Er3+ could be fabricated in different geometrical systems: thin films, monoliths and planar waveguides we herein limit ourselves to the monoliths. The effective role of tin dioxide as luminescence sensitizer for Er3+ ions is confirmed by spectroscopic measurements and detailed fabrication protocols are discussed.

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