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Related Experiment Video

Updated: May 20, 2026

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A new study on bismuth doped oxide glasses.

Wenbin Xu1, Mingying Peng, Zhijun Ma

  • 1State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, School of Materials Science and Technology, South China University of Technology, Guangzhou 510640, China.

Optics Express
|July 10, 2012
PubMed
Summary

Spectroscopic analysis of bismuth-doped glasses reveals Bi(3+) decay times around 500ns. The study identifies Bi(2+) as the source of red emission in phosphate glasses, clarifying previous findings.

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Area of Science:

  • Materials Science
  • Solid State Physics
  • Spectroscopy

Background:

  • Bismuth-doped glasses are investigated for their luminescent properties.
  • Previous studies reported Bi(3+) decay times significantly different from current findings.

Purpose of the Study:

  • To reinvestigate the spectroscopic properties of bismuth-doped borate, silicate, and phosphate glasses.
  • To clarify the origin of red emission in these materials.
  • To provide a more accurate understanding of bismuth ion behavior in glass matrices.

Main Methods:

  • Optical spectroscopy (excitation and emission spectra)
  • Luminescence decay time measurements
  • Analysis using Huang-Rhys factor and configurational coordinate diagrams

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Published on: October 23, 2018

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Last Updated: May 20, 2026

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
09:09

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration

Published on: March 29, 2019

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
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Published on: October 23, 2018

Main Results:

  • Typical decay time of Bi(3+) in these glasses is approximately 500 ns, differing from prior reports.
  • Increased alkali or alkaline earth content in borate glasses enhances Bi(3+) emission.
  • Excitation and emission peaks shift with varying glass compositions and bismuth concentrations.
  • Red emission in phosphate glasses is attributed to Bi(2+) species, confirmed by spectral and lifetime data.
  • No near-infrared emission was detected within the instrument's limits.

Conclusions:

  • The study refines the understanding of Bi(3+) luminescence dynamics in various glass hosts.
  • Bi(2+) is identified as the responsible species for red emission in specific bismuth-doped phosphate glasses.
  • Glass composition significantly influences bismuth ion speciation and optical properties.