Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Photoluminescence: Applications

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

Variables Affecting Phosphorescence and Fluorescence

Variables Affecting Phosphorescence and Fluorescence

Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...

Search research articles

Home
The Effects Of Delayed Annealing On The Luminescent Activity Of Heavy Metal Cadmium Zinc Phosphate Glasses Activated By: Er3+ And Tb3+ Ions.

Home
The Effects Of Delayed Annealing On The Luminescent Activity Of Heavy Metal Cadmium Zinc Phosphate Glasses Activated By: Er3+ And Tb3+ Ions.

Related Experiment Video

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

The effects of delayed annealing on the luminescent activity of heavy metal cadmium zinc phosphate glasses activated

M A Marzouk¹, F H Elbatal², H A Elbatal²

¹Glass Research Department, National Research Centre, 33 El Bohouth Street (former EL Tahrir), Dokki, P.O. 12622, Giza, Egypt. marzouk_nrc@yahoo.com.

Scientific Reports

|March 1, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Rare-earth-doped phosphate glasses containing erbium (Er) and terbium (Tb) exhibit enhanced green light emission. Annealing temperature and rare-earth concentration significantly impact luminescence performance.

Keywords:

Annealing Glass Heavy metal oxide Luminescence Phosphate Rare-Earth

More Related Videos

Low-energy Cathodoluminescence for OxyNitride Phosphors

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

Published on: August 30, 2018

Related Experiment Videos

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

Low-energy Cathodoluminescence for OxyNitride Phosphors

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

The Effect of Ultraviolet Radiation on the Chemical Bath Deposition of Bisthiourea Cadmium Chloride Crystals and the Subsequent CdS Obtention

Published on: August 30, 2018

Area of Science:

Materials Science
Solid State Chemistry
Luminescence

Background:

Rare-earth-doped glasses are crucial for optical applications.
Understanding the influence of dopants and processing on luminescence is essential.

Purpose of the Study:

To investigate the luminescent properties of Er2O3- and Tb2O3-doped P2O5-CdO-ZnO glasses.
To determine the effects of rare-earth elements and annealing on emission performance.

Main Methods:

UV-visible absorption spectroscopy
Luminescence spectroscopy
Thermal expansion analysis
X-ray diffraction (XRD)
Transmission electron microscopy (TEM)
Fourier-transform infrared spectroscopy (FTIR)

Main Results:

Er3+ and Tb3+ ions exhibit characteristic green light emission under UV excitation.
Emission intensity is enhanced by increasing rare-earth concentration and annealing temperature.
Er3+ shows infrared emission at 1532 nm, potentially influenced by heating.
Phosphate groups in the glass structure remain largely stable.

Conclusions:

The study successfully separated the effects of Er and Tb on glass luminescence.
Optimized annealing and rare-earth doping can enhance luminescence properties.
These glasses show potential for applications requiring specific light emission characteristics.