Synthesis and properties of Yb: Sc₂O₃ transparent ceramics

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• 作者：Benxue  ; JIANG ; Chen  ; HU ; Jiang  ; LI ; Huamin  ; KOU ; Yun  ; SHI ; Wenbin  ; LIU ; Yubai  ; PAN  ; ;   ; ^{ybpan@mail.sic.ac.cn}
• 关键词：spectral properties ; Yb ; Sc₂O₃ ; transparent ceramics ; rare earths
• 刊名：Journal of Rare Earths
• 出版年：2011
• 出版时间：October 2011
• 年：2011
• 卷：29
• 期：10
• 页码：951-953
• 全文大小：501 K

文摘

Yb: Sc₂O₃ transparent ceramics were fabricated by solid-state reaction and vacuum sintering method. CaO was added as sintering aids by a high energy ball milling. Transparent nearly-fully dense samples were obtained after 1840 ¡ãC sintering. Using transmitted-light microscope we get the grain sizes are more than 100 ¦Ìm. Using spectrophotometer we get the absorption coefficient centered at 975 nm was 2.65 cm^?. The phosphorescence spectra showed that the line-widths (FWHM) at 975 and 1041 nm were about 4 and 10 nm and the lifetime of Yb ions in Sc₂O₃ transparent ceramics was about 883 ¦Ìs. According to the absorption and fluorescence band centers of Yb: Sc₂O₃ transparent ceramics, the level scheme of Yb³⁺ ions in Sc₂O₃ ceramics could be gotten.