A series of iron-substituted tin dioxide ceramics with composition Sn_x−1Fe_xO₂ was synthesized using a conventional solid-state method in order to investigate its detailed structural and dielectric properties. Samples formed in the tetragonal structure with grain sizes of around 88–48 nm. Reduction in grain size was found because of the suppression in the grain growth with Fe addition. From FTIR analysis, a broad peak was centered on 650 cm⁻¹ due to Sn–O vibration. Many Raman-active phonon modes observed for as prepared samples. The Fe substitution in SnO₂ essentially changes the position of modes, where all the modes shifted to a lower wave number. For all the samples, frequency-dependent dielectric and AC conductivity measurements collected at room temperature and in the frequency range from 75 kHz to 10 MHz. In this frequency range, large dielectric dispersion was noted. According to our analysis of electrical properties of the samples under study, it is found that the conduction mechanism in these materials is based only on a small polaron.

为了研究其详细的结构和介电性能，使用常规固态方法合成了一系列组成为Sn _{x -1} Fe _x O ₂的铁取代的二氧化锡陶瓷。样品以四方结构形成，晶粒尺寸约为88–48 nm。发现晶粒尺寸的减小是因为添加铁抑制了晶粒的生长。根据FTIR分析，由于Sn–O振动，一个宽峰集中在650 cm ^-1处。制备样品时观察到许多拉曼活性声子模式。SnO _2中的Fe取代实质上改变了模式的位置，其中所有模式都移到了一个较低的波数。对于所有样品，在室温下以及从75 kHz到10 MHz的频率范围内，都采集了随频率变化的介电和交流电导率测量值。在该频率范围内，注意到较大的介电色散。根据我们对所研究样品的电性能的分析，发现这些材料的导电机理仅基于小极化子。