Preparation and Study on Spectrum Characteristics of Sr0.99 Ce0.01 HfO3 Nanopowders
作者： Bai Zhaohui , Ba Xuewei , Zhang Xiyan , Lu Liping , Mi Xiaoyun
DOI: 10.1016/S1002-0721(07)60544-4
关键词: Ion 、 Calcination 、 Emission spectrum 、 Materials science 、 Emission band 、 Excitation spectra 、 Analytical chemistry 、 Excitation 、 Excited state 、 General chemistry 、 Geochemistry and Petrology
摘要: Abstract The Sr 0.99 Ce 0.01 HfO 3 nanopowders were synthesized by the co-precipitation method. calcination temperature and time of powders 1200 °C 2 h, respectively. powder size was 15 × 30 nm. There two excitation bands in spectra nanopowders, which peaking at 216 309 nm, emission excited 220 nm light, 398 467 And they corresponding to 5d→ F 5/2 7/2 transitions 3+ ions. But there only one band spectrum light 392
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