On the graphite-induced UV transparency in phosphate glasses

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Abstract

In this Communication, the origin of the graphite-induced UV transparency in phosphate glasses is scrutinized beyond the commonly accepted reduction of metal impurities. A systematic study was carried out by melting phosphate glasses with increasing amounts of graphite powder. Subsequent characterizations were performed by UV/Vis transmission, photoluminescence, 31P nuclear magnetic resonance and x-ray photoelectron spectroscopies. The data points to a structural modification accompanying the enhanced UV transparency. A model accounting for P[sbnd]O[sbnd]C bond formation and the generation of reactive oxygen species is proposed in line with the new structural view suggested.

Original languageEnglish (US)
Pages (from-to)42-46
Number of pages5
JournalOptical Materials
Volume62
DOIs
Publication statusPublished - Dec 1 2016
Externally publishedYes

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Keywords

  • Glasses
  • Luminescence
  • Optical properties

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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