Qasrawi, A. F.Zyoud, Hadeel M.Department of Electrical & Electronics Engineering2024-07-052024-07-0520200306-89191572-817X10.1007/s11082-020-02587-z2-s2.0-85093915974https://doi.org/10.1007/s11082-020-02587-zhttps://hdl.handle.net/20.500.14411/3167Qasrawi, Atef Fayez/0000-0001-8193-6975In this work, the effects of ytterbium substrates of thicknesses of 150 (Yb-150) and 1000 nm (Yb-1000) on the structural, optical and electrical properties of zinc phthalocyanine (ZnPc) are investigated. While the Yb-150/ZnPc exhibited strained monoclinic structure, the Yb-1000/ZnPc thin films are observed to exhibit phase transitions from monoclinic to triclinic structure. Analysis which targeted observatories of the effects of the Yb-150 substrate on the optical properties indicated that the transparent Yb-150 substrate enhanced the light absorbability by more than 11 times at 1.27 eV. On the other hand, the impedance spectroscopy measurements on the nontransparent Yb-1000/ZnPc/Ag sandwiched structures have shown that these devices could exhibit negative capacitance (NC) effect in the frequency domain of 0.244-1.800 GHz. The NC effect is associated with resonance-anti-resonance response at 0.235 and 0.244 GHz, respectively. The structural, optical and electrical properties of the Yb/ZnPc interfaces indicate its applicability as optoelectronic and/or radio/microwave components.eninfo:eu-repo/semantics/closedAccessYbZnPCX-ray diffractionPhase transitionLight absorbabilityNegative capacitanceArticleQ25211WOS:0005864402000052