| Er3+，Ho3+和Tm3+在硫氧化钆中的余辉发光 |
| Afterglow Emission of Er3+, Ho3+ and Tm3+ in Gadolinium Oxysulfide |
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| 摘要: |
| 关键词: 长余辉 硫氧化钆 铒离子 钬离子 铥离子 |
| 基金项目: |
| Abstract: The new Er3+, Ho3+ and Tm3+ doped gadolinium oxysulfide phosphors with the long afterglow emission were synthesized by solid-state reaction method. The synthesized phosphors were characterized by X-ray diffraction. The excitation and photoluminescence spectra, afterglow spectra and afterglow decay curve were examined by fluorescence spectroscopy. The afterglow spectra of Gd2O2S∶Er3+, Mg, Ti showed typical transitions of Er3+ at 528 (2H11/2 → 4I15/2)，548 (4S3/2 → 4I15/2) and 669 nm (4F9/2 → 4I15/2). In the afterglow spectra of Gd2O2S∶ Ho3+, Mg, Ti, typical transitions of Ho3+ at 546 nm (5S2→ 5I8), 651 and 661 nm (5F5 → 5I8) were observed. In Gd2O2S∶Tm3+, Mg, Ti, the afterglow emission at 800 nm (1G4 →3H5) of Tm3+ was seen. The mechnism and model of afterglow energy transfer were proposed. |
| Keywords: long afterglow gadolinium oxysulfide erbium ion holmium ion thulium ion |
| 投稿时间：2004-10-25 修订日期：2005-02-07 |
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| 刘应亮,宋春燕,张静娴,袁定胜,黄浪欢,容建华,张俊文.Er3+，Ho3+和Tm3+在硫氧化钆中的余辉发光[J].无机化学学报,2005,21(6):905-909. |
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