采用固相法制备(Sm1-xBix)05Sr05CoO3-δ (0≤x≤0.5),研究不同Bi3+掺杂浓度对材料的晶体结构、表面形貌与光学性能的影响.结果表明,当掺量0≤x(Bi3+)≤0.2,材料为单一纯相的钙钛矿结构;当掺量0.3≤x≤0.5,材料主相仍保持着钙钛矿结构,同时出现杂相CoO与Sr0.5CoBi0.5Ox.(Sm1-xBix)05Sr05CoO3-δ平均粒径随着Bi3+掺量的增加由1.98 μm增大为9.77 μm,晶粒形状由多边形状变为方块状;光学测试表明,随着Bi3+浓度的增加,材料的光学吸收率由0.73增大到0.87,发射率由0.34增大到0.80.
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