The Synthesis of BaMgAl10O17:Eu2+ Nanorods and Their Luminescence Properties Under UV and VUV Excitation
BaMgAl10O17:Eu2+ nanorods were synthesized by the sol–gel process at 1,250 °C, while bulk phosphor was prepared by conventional solid-state reaction at 1,600 °C. The naonrods had a homogeneous grain size 80–100 nm in diameter and 0.8–1 μm in length. Under 254 nm excitation, the emission intensity of these nanorods was 90.12% of the commercial phosphor. Under 147 nm excitation, the intensity rate was 78.15%. The color coordinates were (0.145, 0.062) under ultraviolet (UV) excitation and (0.143, 0.068) under VUV excitation. Compared with the standard blue fluorescence (0.14, 0.08), the y value was obviously decreasing. These low y values suggested that these BAM nanorods were good for restricting the decrease of BAM effciency during heating.
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Document Type: Research Article
Publication date: 2010-03-01
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