Preparation, structural, iono/thermoluminescence of novel Ag-doped CsPbCl3/GO nanocomposite sensor for optical application

Today, the electro-optics industry stands as one of the world’s largest manufacturing sectors, and its rapid growth has significantly increased the demand for electronic equipment. At the same time, the importance of nanophosphors in optical detection in a wide range of fields ranging from high-energy physics to nuclear medicine and optoelectronics cannot be overstated. In this study, phosphor of Ag-doped CsPbCl3/GO nanocomposite was made using sol gel method. The structure and morphology of the samples were investigated by X-ray diffraction (XRD) and field-emission scanning electron microscope (FE-SEM). The energy-dispersive X-ray spectroscope (EDXS) was employed to analyze the elemental composition of the phosphors. XRD and FE-SEM corroborated the size and form of the nanophosphor, showing that it was cubic and around 300-600 nm in size on the graphene oxide sheets. For the thermoluminescence (TL) study the prepared sample irradiated by 137Cs source ant the TL curve was then recorded. The TL glow curve showed well single peak at a temperature of 210-480 ℃ and the maximum TL occurred for Ag doped CsPbCl3/GO nanocomposite sample. Also, prepared dope composite nanophosphor demonstrated linear response observed from ~1 kGy up to 10 kGy. The optical properties of the synthesized nanopowders were assessed under proton beam excitation; Notably, the Ag-doped CsPbCl3/GO nanocomposite exhibited the best luminescence in the 450-590 nm region compared to pure CsPbCl3 and CsPbCl3/GO samples. This work indicates that Ag-doped CsPbCl3/GO nanophosphor is a suitable choice for optical application due to its linear response over a spectrum of dosages, high ionoluminesence sensitivity, and straightforward glow curve shape.