On competition between two types of anti-Stokes emission in Ho3+ and Nd3+ ions in glasses

Koepke, Cz.; Piatkowski, Dawid; Wiśniewski, K.; Naftaly, Mira

doi:10.1016/j.jnoncrysol.2009.12.012

Cited by 13 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The value of glass transition temperature T g , onset crystallization temperature T c , and peak crystallization temperature T p , are about 820, 895 and 902 • C, respectively. Noted that the T p of present TLZ glass is much higher than that of fluoride or oxy-fluoride glass, which is usually lower than 400 • C [23,24]. This hints that the TLZ glass has a better thermal stability against high temperature.…”

Section: Structure and Thermal Stabilitymentioning

confidence: 78%

Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method

Pan

Liu

et al. 2011

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Structure and Thermal Stabilitymentioning

confidence: 78%

Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method

Pan

Liu

et al. 2011

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Non-isothermal kinetic analyses were used in our experiments. 18 The heating rates were 5, 10, 15, and 20 K • min -1 . The commonly used kinetic equation of solid thermal decomposition under non-isothermal conditions was given as follows:…”

Section: Thermal Stabilitymentioning

confidence: 99%

Thermal and Mechanical Properties of Nd<sup>3+</sup>/Yb<sup>3+</sup> Co-Doped Titanate Glass with Upconversion Emissions

Yu¹,

Pan²,

Zhang³

et al. 2014

Acta Physico-Chimica Sinica

View full text Add to dashboard Cite

In the present work, Nd 3 + /Yb 3 + co-doped TiO2-La2O3-ZrO2 (TLZ) glasses which were previously prepared by the aerodynamic levitation method were characterized by thermal differential analysis (DTA) and micro-hardness tests. The DTA technique was used to study the thermal stability of the characteristic temperatures, the glass transition temperature (Tg), the crystallization onset temperature (Tc), and the crystallization peak temperature (Tp), of the rare earth doped titanate glasses. The thermal kinetic DTA-analysis of the Nd 3+ /Yb 3+ co-doped TLZ glasses was studied at heating rates of 5, 10, 15, 20 K•min-1. The activation energy (Ea) and the pre-exponential factor (A) were obtained by the Kissinger and Friedman methods. In addition, the Vickers hardness was higher than 7.50 GPa and fracture toughness was higher than 1.20 MPa• m 1/2 for all the investigated TLZ glasses by the micro-hardness test. Furthermore, the upconversion luminescence property was investigated at 808 nm laser excitation, and three intense upconversion emission bands were observed. The excellent upconversion fluorescence, good thermal stability, and high mechanical strength suggested that this class of materials has potential for practical application in frequency upconversion devices.

show abstract

“…These problems can be surmounted if glasses are used as host materials for these NPs because they are thermal resistant and highly transparent for the emission of light. Visible photoluminescence (PL) can be shown from rare-earth ions like Ho 3+ and Eu 3+ [6,7]. Undoped and rare earth doped transparent glass-ceramic phosphors for white LEDs applications have been scrupulously studied by Chen et al [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Enhanced green and orange photoluminescence of nanostructured CdS in glass nanocomposites by energy transfer From Ho³⁺ and Eu³⁺ ions

Dey¹,

Karmakar²

2016

Semicond. Sci. Technol.

View full text Add to dashboard Cite

We report enhanced photoluminescence (PL) of both band edge and trap state emissions in Ho 3+ or Eu 3+ ion doped CdS (II-VI semiconductor) nanoparticles (NPs) containing glass nanocomposites. These glass nanocomposites were synthesized by the conventional melt-quench technique. The sizes of CdS NPs are found to increase from 5-15 nm to 40-80 nm with the increase in thermal treatment. Band edge emission (green emission, peak around 495 nm) of CdS NPs is controlled by their size and enhanced about three to nine-fold by Ho 3+ ions on excitation at 446 nm by a diode laser. Under the same excitation, twelve to fifty-fold enhanced trap state emission (orange and red emissions about 550-900 nm) of CdS NPs is obtained by Eu 3+ -doping compared to undoped CdS NPs containing glass nanocomposites. The predominant mechanism of PL enhancement is the energy transfer from rare earth ions to CdS NPs. Enhanced PL of these nanocomposites enables their applications in efficient solar concentrators, green and red light emitting component for white light emission devices.

show abstract

On competition between two types of anti-Stokes emission in Ho3+ and Nd3+ ions in glasses

Cited by 13 publications

References 16 publications

Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method

Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method

Thermal and Mechanical Properties of Nd<sup>3+</sup>/Yb<sup>3+</sup> Co-Doped Titanate Glass with Upconversion Emissions

Enhanced green and orange photoluminescence of nanostructured CdS in glass nanocomposites by energy transfer From Ho³⁺ and Eu³⁺ ions

Contact Info

Product

Resources

About

On competition between two types of anti-Stokes emission in Ho3+ and Nd3+ ions in glasses

Cited by 13 publications

References 16 publications

Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method

Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method

Thermal and Mechanical Properties of Nd<sup>3+</sup>/Yb<sup>3+</sup> Co-Doped Titanate Glass with Upconversion Emissions

Enhanced green and orange photoluminescence of nanostructured CdS in glass nanocomposites by energy transfer From Ho3+ and Eu3+ ions

Contact Info

Product

Resources

About

Enhanced green and orange photoluminescence of nanostructured CdS in glass nanocomposites by energy transfer From Ho³⁺ and Eu³⁺ ions