Structural properties of poly-crystals embedded in glassy matrix of the ternary system CdO-TeO2-GeO2

Medrano-Pesqueira, C.L.; Rodríguez-Carvajal, David A.

doi:10.1016/j.jnoncrysol.2017.07.024

Cited by 9 publications

(4 citation statements)

References 42 publications

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“…C.L. Medrano‐Pesqueira et al studied the structure of CdO‐TeO 2 ‐GeO 2 system glass, and attributed the fitting peak at 531.64 eV of O1s core level to GeO 2 51 . In TeO 2 ‐ PbO‐TiO 2 ‐B 2 O 3 system glass reported by Chen, B‐O bond was responsible for the fitted peak at 533 eV 54 .…”

Section: Resultsmentioning

confidence: 98%

“…50 The Te3d 5/2 peak of the examined glass is deconvoluted into two peaks contributed at 575.0 and 576.3 eV. According to prior studies, 51,52 these binding energy (BE) are related to the presence of TeO 3 trigonal pyramid (tp) and TeO 4 trigonal bipyramid (tbp) units, respectively. The structure stick model of TeO 3 tp and TeO 4 tbp was given in illustration 1and 2, respectively.…”

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confidence: 93%

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The fabrication of nanodiamond doped tellurite germanate glass with robust structure and its luminescence

Gan

et al. 2020

J Am Ceram Soc

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Fluorescence of negative‐charged nitrogen‐vacancy centers in nanodiamond allows applications in quantum metrology, nanoscale sensor, and bioimaging, of utmost relevance to domains from nanotechnologies to biosensing. However, the low color center content and collection efficiency of photons are crucial issues. Although, several studies about coupling nanodiamond into optical waveguides have already been proposed, the search for the most appropriate substance and simplest, most effective method are of keys. In this study, we present a novel nontraditional way to incorporate nanodiamond with increased negative‐charged nitrogen‐vacancy content to 75.48% into tellurite germanate glass. The hybrid glass is stable in structure with predominant TeO4 trigonal bipyramid. Moreover, the fluorescence intensity is enhanced in composite. Such robust nanodiamond in tellurite germanate glass optical system has the potential to be used for nanoparticle sensing and quantum metrology.

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Section: Resultsmentioning

confidence: 98%

mentioning

confidence: 93%

The fabrication of nanodiamond doped tellurite germanate glass with robust structure and its luminescence

Gan

et al. 2020

J Am Ceram Soc

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“…Although the Scherrer´s equation presents a restriction for average sizes up to 100-200 nm [25], the crystallite size (D hkl ) in the direction perpendicular to the lattice planes hkl can be calculated using the Scherrer's equation [25][26][27] with the Full Width at Half Maximum (FWHM) of the X-ray diffraction peak in radians, K = 0.9 as a good approximation in absence of the detailed shape information, λ as the wavelength of the X-rays (1.5406 Å) and θ is the Bragg angle [25,26]. The values calculated for the crystallite size for the samples analyzed were: 52.42 nm (S1), 48.20 nm (S2), 53.19 nm (S1HT) and 46.82 nm (S2HT).…”

Section: X-ray Characterizationmentioning

confidence: 99%

“…Moreover, the discontinuities can be associated with the bulk compounds. Otherwise, Al atoms might be playing a fundamental role in the crystallization process at the nanoscale [26,62]. Comparing both samples analyzed by HRTEM (High-Resolution Transmission Electron Microscopy) ( Fig.…”

Section: Sem and Eds Measurementsmentioning

confidence: 99%

Structural and optical characterization of crystals obtained via solid state reactions in the In2O3–TiO2–Al2O3 pseudoternary system

Medrano-Pesqueira¹,

Brown²,

Möncke

et al. 2019

SN Appl. Sci.

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In this article, a synthesis of the compound In 2 O 3-TiO 2-Al 2 O 3 (molar relation 3:4:1 and 5:8:1) at 1350 °C by solid-state reactions is described. The compounds were obtained after heat treatment at 1350 °C for two days. X-ray diffraction patterns indicate that the synthesized samples belong to the monoclinic crystal system with the space group C 2/m. An agglomeration of the crystals was observed by scanning electron microscopy for the heat-treated samples of either composition (S1HT and S2HT). Atomic quantitative analysis showed variations of the two compositions presented and TEM analyses confirmed that In 3 Ti 2 AlO 10 crystals were formed. Partial nanocrystallization and irregularities can be observed in the micrographs. Both samples were polymorphic and presented chain discontinuities attributed to oxygen vacancies and/or distortions in the structure. UV-vis measurements were performed obtaining a band gap ~ 3.2 eV for all the samples analyzed. XPS analysis for S1HT and S2HT confirmed the expected oxidation of the compounds.

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Investigation of sodium and germanium bi-substituted trimeric strontium silicate (Sr3-3xNa3xSi3-3yGe3yO9-δ; 0 < x < 0.20, y = 0.1) as solid electrolyte

Tarique,

Shahid,

Singh

et al. 2023

J Appl Electrochem

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Structural properties of poly-crystals embedded in glassy matrix of the ternary system CdO-TeO2-GeO2

Cited by 9 publications

References 42 publications

The fabrication of nanodiamond doped tellurite germanate glass with robust structure and its luminescence

The fabrication of nanodiamond doped tellurite germanate glass with robust structure and its luminescence

Structural and optical characterization of crystals obtained via solid state reactions in the In2O3–TiO2–Al2O3 pseudoternary system

Investigation of sodium and germanium bi-substituted trimeric strontium silicate (Sr3-3xNa3xSi3-3yGe3yO9-δ; 0 < x < 0.20, y = 0.1) as solid electrolyte

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