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首页> 外文期刊>Physica, B. Condensed Matter >Synthesis of solid solutions of DyxBi2-xO3 with x=0, 1 and 2: Structural, optical and ac impedance analysis
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Synthesis of solid solutions of DyxBi2-xO3 with x=0, 1 and 2: Structural, optical and ac impedance analysis

机译：x = 0、1和2的DyxBi2-xO3固溶体的合成：结构，光学和交流阻抗分析

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摘要

Dysprosium hydroxide, bismuth hydroxide and mixed dysprosium bismuth hydroxide are prepared in the form of a gel by means of chemical precipitation technique. A simple gel to crystalline conversion technique has been followed by means of refluxing process. The synthesized hydroxides are characterized by thermogravimetry and differential thermal analysis. The formed hydroxides are converted into its oxides by calcining at a temperature of 700 degrees C for 2 h and solid solutions of DyxBi2-xO3 with x=0, 1 and 2 are formed. The hydroxides and oxides of these solid solutions are investigated by means of XRD and found to be polycrystalline in nature. The Nyquist plot shows a single relaxation process. The enhanced conductivity is observed in dysprosium-based oxides and hydroxides. The optical band gap energy is in agreement with the ac conductivity values.
机译：借助于化学沉淀技术以凝胶形式制备氢氧化，氢氧化铋和混合的氢氧化precipitation铋。简单的凝胶到结晶的转化技术已经通过回流工艺进行了。合成的氢氧化物通过热重分析和差热分析进行表征。通过在700摄氏度的温度下煅烧2小时将形成的氢氧化物转化成其氧化物，并形成x = 0、1和2的DyxBi2-xO3固溶体。通过XRD研究了这些固溶体的氢氧化物和氧化物，发现其本质上是多晶的。奈奎斯特图显示了一个松弛过程。在基氧化物和氢氧化物中观察到电导率提高。光学带隙能量与交流电导率值一致。

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