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http://repository.aaup.edu/jspui/handle/123456789/1309
Title: | Ytterbium induced structural phase transitions and their effects on the optical and electrical properties of ZnPc thin films |
Authors: | Qasrawi, Atef$AAUP$Palestinian Zyoud, Hadeel$AAUP$Palestinian |
Keywords: | Yb/ZnPC · X-ray diffraction · Phase transition · Light absorbability · Negative capacitance |
Issue Date: | 26-Oct-2020 |
Publisher: | Optical and Quantum Electronics |
Citation: | https://doi.org/10.1007/s11082-020-02587-z |
Series/Report no.: | 0306-8919; |
Abstract: | 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. |
URI: | http://repository.aaup.edu/jspui/handle/123456789/1309 |
ISSN: | https://doi.org/10.1007/s11082-020-02587-z |
Appears in Collections: | Faculty & Staff Scientific Research publications |
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