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A comparative study on dielectric behaviours of Au/(Zn-doped PVA)/n-4H-SiC (MPS) structures with different interlayer thicknesses using impedance spectroscopy methods

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dc.creator ALTINDAL, ŞEMSETTİN
dc.creator Uslu, Ibrahim
dc.creator Lapa, Havva Elif
dc.creator ÖZDEMİR, Ahmet Faruk
dc.creator KÖKCE, Ali
dc.date 2018-05-31T21:00:00Z
dc.date.accessioned 2020-10-06T10:24:30Z
dc.date.available 2020-10-06T10:24:30Z
dc.identifier 5e18934c-8e4f-4496-aad2-d7a66089cdf9
dc.identifier 10.1007/s12034-018-1602-6
dc.identifier https://avesis.sdu.edu.tr/publication/details/5e18934c-8e4f-4496-aad2-d7a66089cdf9/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/61309
dc.description Three different thicknesses (50, 150 and 500 nm) Zn-doped polyvinyl alcohol (PVA) was deposited on n-4H-SiC wafer as interlayer by electrospinning method and so, Au/(Zn-doped PVA)/n-4H-SiC metal-polymer-semiconductor structures were fabricated. The thickness effect of Zn-doped PVA on the dielectric constant (), dielectric loss (), loss-tangent (tan ), real and imaginary parts of electric modulus ( and and ac electrical conductivity of them were analysed and compared using experimental capacitance (C) and conductance () data in the frequency range of 1-500 kHz at room temperature. According to these results, the values of and decrease with increasing frequency almost exponentially, increases especially, at high frequencies. The and values were obtained from the and data and the and vs. f plots were drawn for these structures. While the values of , and tan increase with increasing interlayer thickness, the values of and decrease with increasing interlayer thickness. The double logarithmic vs. f plots for each structure have two distinct linear regimes with different slopes, which correspond to low and high frequencies, respectively, and it is prominent that there exist two different conduction mechanisms. Obtained results were found as a strong function of frequency and interlayer thickness.
dc.language eng
dc.rights info:eu-repo/semantics/openAccess
dc.title A comparative study on dielectric behaviours of Au/(Zn-doped PVA)/n-4H-SiC (MPS) structures with different interlayer thicknesses using impedance spectroscopy methods
dc.type info:eu-repo/semantics/article


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