Remarkable Differences in Photoluminescence Properties Between BaF2:Eu3+ Microrods and Nanorods
Abstract:The preparation process and photoluminescent properties of one-dimensional BaF2:Eu3+ nanorods (NRs) and microrods (MRs) were investigated. The results indicate that the samples were NRs with uniform diameters in the range of 30–50 nm, and lengths in the range of 1.2–3 m when cooled to room temperature naturally. However, the samples were MRs with length of 1.5–3.0 m and outer diameters of 200–250 nm when cooled to room temperature immediately. Furthermore, the relative intensity of 5D0 → 7F2 depended on the two structures obtained under different temperatures. This work demonstrates that a MRs may be more favorable than NRs for photoluminescence.
Document Type: Short Communication
Publication date: March 1, 2010
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