Luminescent Properties of Eu3+-Doped Yttrium Oxide Chloride Embedded in Nanoporous Glass

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2002,（11）
• 页码范围: 1672-1674
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

The photoluminescence of Eu3+-doped yttrium oxide chloride embedded in nanoporous glass has been observed. In comparison with those in the powder phosphor, the emission lines of Eu3+ ions become much broader and blueshift was observed in the lines due to 5D0 → 7F2 transitions and the Eu-O charge transfer excitation band. The ratio intensities of the 5 D0 → 7 F1 transitions to the 5Do → 7 F2 transitions of Eu3+ ion become higher and change at different excitation wavelengths, such as 393nm and 254nm. The two excitation wavelengths belong to the 4f → 4f transition of the Eus+ ion and the Eu-O charge transfer, respectively. This material may be developed into a new luminescent glass.