A spectroscopic study and the effect of gamma rays on the stability and efficiency of boron subphthalocyanine dye for solar energy applications

Gamma irradiation with different doses (0.0, 10, 20, 30, 40 and 50 kGy) effects on the structural and optical features of organic boron subphthalocyanine (SubPc-Cl) thin films are studied. The main characteristic peaks and stability of SubPc-Cl dye under gamma-ray exposure with different doses were recognized by using Fourier transform infrared spectroscopy (FTIR). The surface composition of the SubPC-Cl thin films under gamma-ray exposure with different doses (0.0 & 50 kGy) was recognized by using X-ray photoelectron spectroscopy (XPS). X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM) and High-resolution transmission electron microscopy (HR-TEM) results were applied to determine the crystal structure and morphology of the SubPC-Cl thin films under gamma-ray exposure with different doses. Various approaches such as the first derivation of the absorption spectrum fitting (DASF), Tauc's method, Drude model and the single-effective-oscillator model were discussed to obtain the optical properties of SubPc-Cl) thin films under gamma-ray exposure with different doses. Such investigation can add to the growth of subphthalocyanine applications such as photovoltaic or dosimetry applications.