The stokes photoluminescence spectra of erbium-doped KNbO3 polycrystalline

Cheng Hung Wen, Sheng Yuan Chu, Sing Long Tyan, Yung Der Juang

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20 Citations (Scopus)

Abstract

This paper reports the Stokes photoluminescence (PL) spectra of erbium-doped potassium niobate (KNbO3), which are prepared by synthesized method. In this work, we research the relations between PL spectra with the sintering temperature and erbium concentration. The experiments showed that 2H1/24I15/2, 4S3/24I15/2 and the 4S3/24I13/2 emission peaks have maximum intensity at sintering temperature of 1060°C for the concentration of erbium (CEr) = 1% sample. The PL spectra is also a function of dopant concentration. It was found that the relative intensity of 2H1/24I15/2, 4S3/24I15/2 and the 4S3/24I13/2 transitions increased as the concentration of erbium dopants increased, but then it decreased. The material characteristics were studied using X-ray diffraction, scanning electron microscopy and Raman spectrometer.

Original languageEnglish
Pages (from-to)225-230
Number of pages6
JournalJournal of Crystal Growth
Volume262
Issue number1-4
DOIs
Publication statusPublished - 2004 Feb 15

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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