Advances in Glass Science and Tehcnology

Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system

J. Alvarado-Rivera, Carlos Guadalupe Pérez Hernández, María Elena Zayas Saucedo, Mario Enrique Alvarez Ramos

Research output: Chapter in Book/Report/Conference proceedingChapterResearchpeer-review

Abstract

In this study, a series of glasses of the system xCdO-10TeO2-(90−x)GeO2 were fabricated, varying the modifier oxide content from 10 to 80 wt%. According to XRD analysis, partial crystallization occurred for the glass 60CdO.10TeO2.30GeO2 presenting the formation of GeO2 and CdTeO3; the 70CdO.10TeO2.20GeO2 glass shows sharp diffraction peaks corresponding to the Cd3Al2Ge3O12 garnet crystalline phase. Transmission electron microscopy showed that the garnet crystals have sizes below 20 nm. At the highest concentration of CdO (80 wt%), a transparent orange glass can be obtained, and this sample can be identified as an inverted glass where CdO participates as a network former. The optical band gap of the glasses decreases as CdO content increases from 3.91 to 3.0 eV. In general, all glasses show a typical broad emission when excited with UV light (325 nm); chromatic coordinates were calculated and pointed out the presence of emissions in the white, green, and yellow regions. In summary, the obtained glasses are a promising material for IR technologies, nonlinear optics, and design of solid state lighting devices.
Original languageAmerican English
Title of host publicationAdvances in Glass Science and Technology
Subtitle of host publicationNanocrystallization of the Cd3Al2Ge3O12 Garnet in Glasses of the CdO-TeO2-GeO2 System
EditorsVincenzo Maria Sglavo
PublisherIntechOpen
Chapter3
Pages39
Number of pages59
Volume1
Edition1
ISBN (Electronic)978-1-78923-177-9
ISBN (Print)978-1-78923-176-2
DOIs
StatePublished - 1 Jun 2018

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garnets
glass
nonlinear optics
illuminating
crystallization
solid state
transmission electron microscopy
oxides
diffraction
crystals

Keywords

  • tellurite
  • germanates
  • nanocrystals
  • Photoluminescence

Cite this

Alvarado-Rivera, J., Pérez Hernández, C. G., Zayas Saucedo, M. E., & Alvarez Ramos, M. E. (2018). Advances in Glass Science and Tehcnology: Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system. In V. M. Sglavo (Ed.), Advances in Glass Science and Technology: Nanocrystallization of the Cd3Al2Ge3O12 Garnet in Glasses of the CdO-TeO2-GeO2 System (1 ed., Vol. 1, pp. 39). IntechOpen. https://doi.org/10.5772/intechopen.73295
Alvarado-Rivera, J. ; Pérez Hernández, Carlos Guadalupe ; Zayas Saucedo, María Elena ; Alvarez Ramos, Mario Enrique. / Advances in Glass Science and Tehcnology : Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system. Advances in Glass Science and Technology: Nanocrystallization of the Cd3Al2Ge3O12 Garnet in Glasses of the CdO-TeO2-GeO2 System. editor / Vincenzo Maria Sglavo. Vol. 1 1. ed. IntechOpen, 2018. pp. 39
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title = "Advances in Glass Science and Tehcnology: Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system",
abstract = "In this study, a series of glasses of the system xCdO-10TeO2-(90−x)GeO2 were fabricated, varying the modifier oxide content from 10 to 80 wt{\%}. According to XRD analysis, partial crystallization occurred for the glass 60CdO.10TeO2.30GeO2 presenting the formation of GeO2 and CdTeO3; the 70CdO.10TeO2.20GeO2 glass shows sharp diffraction peaks corresponding to the Cd3Al2Ge3O12 garnet crystalline phase. Transmission electron microscopy showed that the garnet crystals have sizes below 20 nm. At the highest concentration of CdO (80 wt{\%}), a transparent orange glass can be obtained, and this sample can be identified as an inverted glass where CdO participates as a network former. The optical band gap of the glasses decreases as CdO content increases from 3.91 to 3.0 eV. In general, all glasses show a typical broad emission when excited with UV light (325 nm); chromatic coordinates were calculated and pointed out the presence of emissions in the white, green, and yellow regions. In summary, the obtained glasses are a promising material for IR technologies, nonlinear optics, and design of solid state lighting devices.",
keywords = "tellurite, germanates, nanocrystals, Photoluminescence",
author = "J. Alvarado-Rivera and {P{\'e}rez Hern{\'a}ndez}, {Carlos Guadalupe} and {Zayas Saucedo}, {Mar{\'i}a Elena} and {Alvarez Ramos}, {Mario Enrique}",
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Alvarado-Rivera, J, Pérez Hernández, CG, Zayas Saucedo, ME & Alvarez Ramos, ME 2018, Advances in Glass Science and Tehcnology: Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system. in VM Sglavo (ed.), Advances in Glass Science and Technology: Nanocrystallization of the Cd3Al2Ge3O12 Garnet in Glasses of the CdO-TeO2-GeO2 System. 1 edn, vol. 1, IntechOpen, pp. 39. https://doi.org/10.5772/intechopen.73295

Advances in Glass Science and Tehcnology : Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system. / Alvarado-Rivera, J.; Pérez Hernández, Carlos Guadalupe; Zayas Saucedo, María Elena; Alvarez Ramos, Mario Enrique.

Advances in Glass Science and Technology: Nanocrystallization of the Cd3Al2Ge3O12 Garnet in Glasses of the CdO-TeO2-GeO2 System. ed. / Vincenzo Maria Sglavo. Vol. 1 1. ed. IntechOpen, 2018. p. 39.

Research output: Chapter in Book/Report/Conference proceedingChapterResearchpeer-review

TY - CHAP

T1 - Advances in Glass Science and Tehcnology

T2 - Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system

AU - Alvarado-Rivera, J.

AU - Pérez Hernández, Carlos Guadalupe

AU - Zayas Saucedo, María Elena

AU - Alvarez Ramos, Mario Enrique

PY - 2018/6/1

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N2 - In this study, a series of glasses of the system xCdO-10TeO2-(90−x)GeO2 were fabricated, varying the modifier oxide content from 10 to 80 wt%. According to XRD analysis, partial crystallization occurred for the glass 60CdO.10TeO2.30GeO2 presenting the formation of GeO2 and CdTeO3; the 70CdO.10TeO2.20GeO2 glass shows sharp diffraction peaks corresponding to the Cd3Al2Ge3O12 garnet crystalline phase. Transmission electron microscopy showed that the garnet crystals have sizes below 20 nm. At the highest concentration of CdO (80 wt%), a transparent orange glass can be obtained, and this sample can be identified as an inverted glass where CdO participates as a network former. The optical band gap of the glasses decreases as CdO content increases from 3.91 to 3.0 eV. In general, all glasses show a typical broad emission when excited with UV light (325 nm); chromatic coordinates were calculated and pointed out the presence of emissions in the white, green, and yellow regions. In summary, the obtained glasses are a promising material for IR technologies, nonlinear optics, and design of solid state lighting devices.

AB - In this study, a series of glasses of the system xCdO-10TeO2-(90−x)GeO2 were fabricated, varying the modifier oxide content from 10 to 80 wt%. According to XRD analysis, partial crystallization occurred for the glass 60CdO.10TeO2.30GeO2 presenting the formation of GeO2 and CdTeO3; the 70CdO.10TeO2.20GeO2 glass shows sharp diffraction peaks corresponding to the Cd3Al2Ge3O12 garnet crystalline phase. Transmission electron microscopy showed that the garnet crystals have sizes below 20 nm. At the highest concentration of CdO (80 wt%), a transparent orange glass can be obtained, and this sample can be identified as an inverted glass where CdO participates as a network former. The optical band gap of the glasses decreases as CdO content increases from 3.91 to 3.0 eV. In general, all glasses show a typical broad emission when excited with UV light (325 nm); chromatic coordinates were calculated and pointed out the presence of emissions in the white, green, and yellow regions. In summary, the obtained glasses are a promising material for IR technologies, nonlinear optics, and design of solid state lighting devices.

KW - tellurite

KW - germanates

KW - nanocrystals

KW - Photoluminescence

U2 - 10.5772/intechopen.73295

DO - 10.5772/intechopen.73295

M3 - Chapter

SN - 978-1-78923-176-2

VL - 1

SP - 39

BT - Advances in Glass Science and Technology

A2 - Sglavo, Vincenzo Maria

PB - IntechOpen

ER -

Alvarado-Rivera J, Pérez Hernández CG, Zayas Saucedo ME, Alvarez Ramos ME. Advances in Glass Science and Tehcnology: Nanocrystallization of Cd3Al2Ge3O12 garnet in glasses of the CdO-TeO2-GeO2 system. In Sglavo VM, editor, Advances in Glass Science and Technology: Nanocrystallization of the Cd3Al2Ge3O12 Garnet in Glasses of the CdO-TeO2-GeO2 System. 1 ed. Vol. 1. IntechOpen. 2018. p. 39 https://doi.org/10.5772/intechopen.73295