摘要
以LSS(Liquid-Solid-Solution)方法制备出形貌均一的BaF_2纳米晶为样品,将金刚石对顶砧技术与交流阻抗谱测量技术集合起来,用高压原位阻抗谱测量技术对纳米BaF_2进行高压下的电学性质的研究,研究其电荷输运过程中的传导机制,得出纳米BaF_2的载流子既包含离子又包含电子,同时给出了不同高压相的拟合电路.利用等效电路对纳米BaF_2的交流阻抗谱进行拟合,得出的拟合曲线与测量曲线吻合较好.
BaF_2 nanocystals was synthesized by Liquid-Solid-Solution( LSS). The alternating current impedance spectroscopy of BaF_2 nanocrystals was conducted by diamond anvil cell under high pressure. The charge carriers in BaF_2 nanocrystals include both F-ions and electrons. The equivalent circuits of different phases were given out. The current impedance spectroscopy of BaF_2 nanocrystals was fitted by equivalent circuit,and the simulated spectra well agree with the experimental data.
出处
《吉林师范大学学报（自然科学版）》
2018年第1期26-29,共4页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然科学基金项目(11404137)
吉林省教育厅"十二五"科学技术研究项目(吉教科合字[2015]第221号)
关键词
阻抗谱
高压
电输运
impedance spectroscopy
high pressure
electrical transport
