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Photon quantification of electrospun europium-complexes/PMMA submicron fibers

  • X. M. Zang
  • , L. F. Shen
  • , E. Y.B. Pun
  • , J. Guo
  • , H. Lin*
  • *Corresponding author for this work
  • Dalian Polytechnic University
  • City University of Hong Kong

Research output: Contribution to journalArticlepeer-review

Abstract

Electrospun ultrafine fibers of europium-complex/PMMA are prepared and the uniform diameters are estimated to be submicron magnitudes 0.7–1.1 μm. Intense red fluorescence is observed in ultrathin layers of Eu(DBM)3/PMMA and Eu(DBM)3Phen/PMMA fibers under ultraviolet (UV) radiation and effectiveness of Phen ligand is verified in enhancing emission behavior. Under 535.8 μW UV-LED pump power, net emission powers are derived to be 5.8 and 36.6 μW, and net emission photon numbers are identified to be 18.2 × 1012 and 114.6 × 1012 cps for Eu(DBM)3/PMMA and Eu(DBM)3Phen/PMMA fibers, respectively. Simultaneously, total quantum yields reach to 2.80% and 12.94% in fibers not containing and containing Phen ligand. Fluorescence quantification demonstrates the potential of europium-complexes/PMMA submicron fibers as UV–visible conversion layer for flexible solar cells.

Original languageEnglish
Pages (from-to)620-626
Number of pages7
JournalJournal of Alloys and Compounds
Volume709
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • Europium-complexes/PMMA
  • Photon quantification
  • Submicron fibers

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