Dielectric Dispersion at the Mn/Znpc Interfaces
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Date
2020
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Wiley-v C H verlag Gmbh
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Abstract
Herein, the effects of manganese transparent (150 nm) substrates on the structural, nonlinear optical, and dielectric properties of zinc phthalocyanine are explored. ZnPc thin films are observed to exhibit deformed crystal structure associated with remarkable enhancement in the light absorbability by 21 times at 2.62 eV and by 173 times in the near-infrared (NIR) region of light upon replacement of glass by transparent Mn substrates. The Mn layer also causes a redshift in the energy bandgap, allows generation of free carrier absorption process and increases the dielectric constant by more than 169% in the NIR region. The interaction between the manganese substrates with the organic ZnPc thin layers decreases the free holes density, widens the plasmon frequency range, and improves the drift mobility of holes. The nonlinear dielectric response with the highly improved light absorbability in the NIR range of light nominates the Mn/ZnPc thin films for optoelectronic applications.
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Qasrawi, Atef Fayez/0000-0001-8193-6975
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Keywords
dielectric dispersion, Mn, ZnPC, optical conduction, plasmons, X-ray diffraction
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Volume
257
Issue
6