Upconversion luminescence and color tunable properties in Yb-Tb codoped Ca0.15Zr0.85O1.85 inverse opal |
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| Authors: | LI Jun YANG Zhaoning YANG Zhengwen YAN Dong WU Hangjun LIAO Jiayan QIU Jianbei SONG Zhiguo YANG Yong ZHOU Dacheng |
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| Affiliation: | (Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education; Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China) |
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| Abstract: | The upconversion (UC) luminescence and color tunable properties of Tb3+ ions were investigated by steady spectral under 980 LD excitation in the Ca0.15Zr0.85O1.85: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. |
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| Keywords: | upconversion inverse opal photonic band gap Cao.15ZrO.8501.85：Yb,Tb rare earths |
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