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采用固相合成法,以In2O3和Fe2O3为原料合成了(In1-xFex)2O3粉末样品,并研究了Fe掺杂浓度和焙烧温度对(In1-xFex)2O3粉末结构和红外性能的影响。结果表明:当Fe掺杂浓度为x=0.05,焙烧温度为900℃时,所制备(In1-xFex)2O3粉末中Fe元素能很好地固溶到In2O3晶格中;随着Fe掺杂浓度的增加,(In1-xFex)2O3粉末的晶粒尺寸呈现先减小后增大的趋势,但In2O3的晶体结构基本不变,为典型的立方晶系方铁锰矿结构;掺杂Fe后的(In1-xFex)2O3粉末在400~4 000cm-1的红外波段内存在较强的吸收峰。
(In1-xFex) 2O3 powders were synthesized by solid-state synthesis method from In2O3 and Fe2O3. The effects of Fe doping concentration and calcination temperature on the structure and infrared properties of (In1-xFex) 2O3 powders were investigated. The results show that when the Fe doping concentration is x = 0.05 and the calcination temperature is 900 ℃, the Fe in the In1-xFex 2O3 powder can be well dissolved into the In2O3 lattice. With the doping concentration of Fe , The grain size of (In1-xFex) 2O3 powder first decreases and then increases. However, the crystal structure of In2O3 is almost invariant, which is a typical cubic bixbyite structure. After the Fe-doped In1-xFex) 2O3 powder in the 400 ~ 4 000cm-1 in the infrared band there is a strong absorption peak.