High energy external gamma radiation has always an impact on semiconductor material by altering its physico-chemical properties. In this paper, the effect of gamma-radiation is observed on sol-gel synthesized metastable h-MoO 3 nanorods with absorbed dose variation. The irradiated sample shows a remarkable change in their structural parameters such as average crystallite size decreased, strain, and dislocation density increased and so on are confirmed from the x-ray diffraction (XRD). Functional groups and the corresponding vibration and stretching are analyzed from the Fourier transform infrared spectroscopy (FTIR). The change in surface morphology is observed from the field emission scanning electron microscopy (FESEM) image and found no remarkable change. However, the optical band gap decreases with increasing absorbed dose and calculated 2.84 eV, 2.82 eV, 2.80 eV and 2.77 eV for 0 kGy, 40 kGy, 80 kGy, and 120 kGy, respectively by Kubelka-Munk (K-M) function from th...

中文翻译：

---

γ射线处理溶胶-凝胶合成的h-MoO 3纳米棒的结构和光学性质

高能外部伽马射线通过改变其物理化学性质，始终对半导体材料产生影响。在本文中，在吸收剂量变化的溶胶-凝胶合成的亚稳态h-MoO 3纳米棒上观察到了γ辐射的影响。通过X射线衍射（XRD）证实，被辐照的样品在其结构参数上显示出显着的变化，例如平均微晶尺寸减小，应变和位错密度增大等。通过傅立叶变换红外光谱（FTIR）分析官能团以及相应的振动和拉伸。从场发射扫描电子显微镜（FESEM）图像观察到表面形态的变化，未发现明显变化。然而，光学带隙随吸收剂量的增加而减小，并计算为2。