Abstract The design of organic/inorganic nanoparticles hybrids provides the great potential for the fabrication of γ-ray sensor systems. Herein, structural and dosimetric properties of the gamma irradiated poly vinyl acetate (PVAc) doped with cadmium telluride quantum dots (CdTe QDs) and graphene oxide (GO) nanoflakes have been investigated. Thioglycolic acid (TGA) capped water-soluble CdTe QDs and (GO) nanoflakes are synthesized and characterized. Then, CdTe QDs/GO/PVAc sensors were formed by post-depositing CdTe and GO over polymer matrix. The photophysical interactions between nanoparticles and organic polymer have been investigated using ohmic contact detectors with two gold coated electrodes. Real time dose rate information of the sensors such as sensitivity, repeatability, and the linearity of dose rate response were assessed. A wider photoelectric response range and wider gamma harvesting range were observed in the resultant hybrid gamma sensor at a standard bias voltage with respect to non-hybrid CdTe QDs/PVAc sensors.

中文翻译：

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碲化镉量子点/氧化石墨烯/聚醋酸乙烯酯（CdTe QDs/GO/PVAc）纳米复合材料：一种用于实时伽马辐射检测的新型传感器

摘要 有机/无机纳米粒子混合物的设计为γ射线传感器系统的制造提供了巨大的潜力。在此，研究了掺杂碲化镉量子点 (CdTe QD) 和氧化石墨烯 (GO) 纳米薄片的伽马辐照聚醋酸乙烯酯 (PVAc) 的结构和剂量学特性。合成并表征了硫乙醇酸 (TGA) 封端的水溶性 CdTe QD 和 (GO) 纳米薄片。然后，通过在聚合物基质上后沉积 CdTe 和 GO，形成 CdTe QDs/GO/PVAc 传感器。已经使用带有两个镀金电极的欧姆接触检测器研究了纳米颗粒和有机聚合物之间的光物理相互作用。评估了传感器的实时剂量率信息，例如灵敏度、可重复性和剂量率响应的线性度。