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Two fold characteristics of swift heavy ion irradiation on Co_3O_4/RGO nanocomposites

机译：CO_3O_4 / rgo纳米复合材料的SWIFT重离子辐射的两倍特征

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摘要

This work presents a unique role played by swift heavy ion irradiation (SHI) on Co3O4 - reduced graphene oxide (RGO) nanocomposites in modifying its optical, magnetic and surface electronic properties. On exposure to SHI, there occur delinking of the attached functional groups from RGO thus driving towards its purification. Raman spectra of irradiated samples confirm this result, where, an exponential decrease in the intensity ratio of D and G peaks of RGO with fluence occurs. At the same time, SHI generates extended defects in the form of latent tracks in decorated Co3O4 nanoparticles, thus modifying the magnetic and surface electronic properties. Results obtained from magnetization studies using SQUID magnetometer and surface electronic response from scanning Kelvin probe reveals that a linear relationship could be established between magnetization and work function of the nanocomposite. An estimation for variation of defect-induced damage fraction with fluence is made from measured work function values.
机译：该工作呈现了Co3O4 - 氧化铁（RGO）纳米复合材料在改变其光学，磁性和表面电子特性的情况下通过Swift重离子辐射（SHI）发挥了独特的作用。在暴露于SHI时，发生从RGO的附着官能团的脱离，从而驱动朝其纯化。辐照样品的拉曼光谱证实了该结果，其中，rgo的D和G峰的强度比的指数降低发生。同时，SHI以装饰的CO3O4纳米颗粒中的潜伏轨道的形式产生延长的缺陷，从而改变磁性和表面电子性质。从扫描开尔文探针使用鱿鱼磁力计和表面电子响应获得的结果显示，可以在纳米复合材料的磁化和功函数之间建立线性关系。通过测量的功函数值进行缺陷诱导损伤级分的变化的估计。

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