Emission spectra of Tb3+:PVA polymer films

G. Seeta Rama Raju, S. Buddhudu, A. Varada Rajulu, L. Ganga Devi

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9 Scopus citations

Abstract

This paper reports on the development and optical analysis of Tb 3+-doped polyvinyl alcohol (PVA) films. A reference PVA film has also been prepared for which X-ray diffraction (XRD) spectral profile has been carried out; it was found that this polymer possesses a semi crystalline nature. Spectral analysis of the Tb3+:PVA polymer film has been made based on the measurement of the excitation, emission, and decay curves of the emission transitions (5D47F 6,5,4&3). Under a UV source (254 nm), a bright green emission was noticed from the surface of Tb3+:PVA film. The current study reveals that this terbium polymer film could be suggested as a novel green luminescent material.

Original languageEnglish
Pages (from-to)487-495
Number of pages9
JournalSpectroscopy Letters
Volume39
Issue number5
DOIs
StatePublished - 1 Oct 2006

Keywords

  • Doped films
  • Emission
  • Excitation
  • Fluorescent systems
  • Polyvinyl alcohol
  • Terbium

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