Structural and luminescent properties of Dy 3+: YAP nanophosphors

G. Seeta Rama Raju, Hong Chae Jung, Jin Young Park, Jong Won Chung, Jung Hyun Jeong, Byung Kee Moon, Se Mo Son, Jung Hwan Kim

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A series of dysprosium (Dy 3+)-ion-activated YAIO 3 nanophosphors were synthesized by using a solvothermal method. Thermogravimetric/differential thermal analyses (TG/DTA) and X-ray diffraction (XRD) measurements were used to investigate the phase transformations that occur during the preparation of these phosphors. The morphology of the powder after heating at 1600 ° C was observed by scanning electron microscopy (SEM). Luminescent studies we carried out on these compounds by using measurements of their photoluminescence (PL) and photoluminescence excitation (PLE) spectra along with the decay curve. The PL spectra show two main groups of lines, one in the blue and the other in the yellow region, concentration quenching was observed at 1 mol% of Dy 3+: YAP nanophosphors. The emission procedure in the system is also elucidated by using an energy level scheme.

Original languageEnglish
Pages (from-to)1470-1474
Number of pages5
JournalJournal of the Korean Physical Society
Volume54
Issue number4
DOIs
StatePublished - Apr 2009

Keywords

  • Dy
  • PL
  • PLE
  • YAP

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