Upconversion luminescence and color tunable properties in Yb-Tb codoped Ca_0.15Zr_0.85O_1.85 inverse opal

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• 作者：Jun LI ; Zhaoning YANG ; Zhengwen YANG ; ^{yangzw@kmust.edu.cn} ; Dong YAN ; Hangjun WU ; Jiayan LIAO ; Jianbei QIU ; Zhiguo SONG ; Yong YANG ; Dacheng ZHOU
• 关键词：upconversion ; inverse opal ; photonic band gap ; Ca0.15Zr0.85O1.85 ; Yb ; Tb ; rare earths
• 刊名：Journal of Rare Earths
• 出版年：2012
• 出版时间：December, 2012
• 年：2012
• 卷：30
• 期：12
• 页码：1191-1194
• 全文大小：1660 K

文摘

The upconversion (UC) luminescence and color tunable properties of Tb³⁺ ions were investigated by steady spectral under 980 LD excitation in the Ca_0.15Zr_0.85O_1.85:Yb,Tb inverse opals fabricated by the self-assembly technique in combination with a sol-gel method. The inhibition of UC emission was inspected if the Tb³⁺ UC emission band was in the regions of the photonic bandgap, while enhancement of the UC emission occurred if the UC emission band located at the edge of the bandgap. Color modification of the UC emission was successfully obtained by the suppression or enhancement effect of the photonic band gap on the UC emission.