Investigation of Pr3+ Near-Infrared Emission in Plasmonic and Dichroic Copper Nanocomposite Glasses

Research output: Contribution to journalArticlepeer-review

Abstract

Melt-quenched Pr3+-doped phosphate glass containing Cu+ and Sn2+ as redox couple to induce Cu nanoparticle (NP) precipitation was subjected to heat treatment to develop nanocomposite glasses with plasmonic and dichroic character. The purpose was to examine the impact of Cu NPs producing dichroism on the near-infrared (NIR) emission from Pr3+. The parent and isothermally heat-treated glasses (520 °C: 20, 40, 60 min) were characterized by differential scanning calorimetry, Fourier transform-infrared spectroscopy, optical extinction, and photoluminescence spectroscopy with decay dynamics. From the samples, the heat-treated for 40 and 60 min showed broad plasmonic bands alongside dichroism wherein the glasses scatter red light but transmit blue. The Pr3+ NIR emission encompassing 1D23F4, 3F3,1G4 transitions was evaluated under 445 and 590 nm excitation. An increased emission was not exhibited, whereas a quenching effect became evident for samples heat-treated for 40 and 60 min. Different interactions involving Pr3+ ions and Cu NPs are discussed.

Original languageEnglish (US)
Pages (from-to)1616-1623
Number of pages8
JournalJournal of Inorganic and Organometallic Polymers and Materials
Volume32
Issue number5
DOIs
StatePublished - May 2022

Keywords

  • Glasses
  • Infrared
  • Luminescence
  • Optical properties

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Investigation of Pr3+ Near-Infrared Emission in Plasmonic and Dichroic Copper Nanocomposite Glasses'. Together they form a unique fingerprint.

Cite this