Photoluminescence characteristics of ZnO doped with Eu3+ powders

Te Hua Fang, Yee Shin Chang, Liang Wen Ji, Stephen D. Prior, Walter Water, Kuan-Jen Chen, Ching Feng Fang, Chun Nan Fang, Siu Tsen Shen

研究成果: Article同行評審

34 引文 斯高帕斯(Scopus)

摘要

In this work, we have investigated the photoluminescence spectra of europium-doped zinc oxide crystallites prepared by a vibrating milled solid-state reaction method. X-ray diffraction, scanning electron microscopy, luminescence spectra and time-resolved spectra analysis were used to characterize the synthetic ZnO:Eu3+ powders. XRD results of the powders showed a typical wurtzite hexagonal crystal structure. A second phase occurred at 5 mol% Eu2O3-doped ZnO. The 5D0-7F1 (590 nm) and 5D0-7F2 (609 nm) emission characteristics of Eu3+ appeared after quenching with more than 1.5 mol% Eu2O3 doping. The Commission Internationale d'Eclairage (CIE) chromaticity coordinates of a ZnO:Eu3+ host excited at λex=467 nm revealed a red-shift phenomenon with increase in Eu3+ ion doping. The lifetime of the Eu3+ ion decreased as the doping concentration was increased from 1.5 to 10 mol%, and the time-resolved 5D07F2 transition presents a single-exponential decay behavior.

原文English
頁(從 - 到)1015-1018
頁數4
期刊Journal of Physics and Chemistry of Solids
70
發行號6
DOIs
出版狀態Published - 2009 六月 1

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學

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