The outstanding properties of graphene oxide and its magnetic nanocomposites are triggering extensive interests of scientists, whereas how to fully optimized the integrated functions for the fabrication of gamma ray sensor systems with unique attributes remains to be a challenge. Here, we report a facile approach to produce Fe₃O₄/ graphene oxide nanocomposites in polyvinyl acetate and polymethyl methacrylate (Fe₃O₄/GO/PVAc & Fe₃O₄/GO/PMMA) which showed the integrated properties of excellent processability, high sensitivity for gamma ray and good solubility. Photophysical interactions between Fe₃O₄, graphene oxide nanosheets and polymers have been investigated and compared using ohmic contact detectors with gold electroplated electrodes. Real-time dosimetric responses of the sensors such as repeatability, sensitivity and the linearity of dose rate response against gamma radiation source were also assessed. An increase in the photoelectric response and gamma harvesting properties in prepared sensors was observed with respect to non-magnetic GO sensors.

氧化石墨烯及其磁性纳米复合材料的出色性能引发了科学家的广泛兴趣，而如何充分优化集成功能以制造具有独特属性的伽马射线传感器系统仍然是一个挑战。在这里，我们报告了一种在聚乙酸乙烯酯和聚甲基丙烯酸甲酯（Fe ₃ O ₄ / GO / PVAc和Fe ₃ O ₄ / GO / PMMA）中生产Fe ₃ O ₄ /氧化石墨烯纳米复合材料的简便方法，该方法显示出优异的加工性能。 ，对伽马射线的高灵敏度和良好的溶解性。Fe ₃ O ₄之间的光物理相互作用，氧化石墨烯纳米片和聚合物已经过研究，并使用带有金电镀电极的欧姆接触检测器进行了比较。还评估了传感器的实时剂量响应，例如可重复性，灵敏度和针对伽玛射线源的剂量率响应的线性。相对于非磁性GO传感器，观察到在准备好的传感器中光电响应和伽马收集性能有所提高。