| Frequency and voltage-dependent electrical and dielectric properties of Al/Co-doped PVA/p-Si structures at room temperature |
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| 作者姓名： | Ibrahim Ycedag Ahmet Kaya Semsettin Altindal Ibrahim Uslu |
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| 摘 要： | In order to investigate of cobalt-doped interracial polyvinyl alcohol （PVA） layer and interface trap （Dit） effects, A1/p- Si Schottky barrier diodes （SBDs） are fabricated, and their electrical and dielectric properties are investigated at room temperature. The forward and reverse admittance measurements are carded out in the frequency and voltage ranges of 30 kHz-300 kHz and -5 V-6 V, respectively. C-V or er-V plots exhibit two distinct peaks corresponding to inversion and accumulation regions. The first peak is attributed to the existence of Dit, the other to the series resistance （Rs）, and interfacial layer. Both the real and imaginary parts of dielectric constant （er and err） and electric modulus （Mr and Mrr）, loss tangent （tan~）, and AC electrical conductivity （aac） are investigated, each as a function of frequency and applied bias voltage. Each of the M~ versus V and Mrr versus V plots shows a peak and the magnitude of peak increases with the increasing of frequency. Especially due to the Dit and interfacial PVA layer, both capacitance （C） and conductance （G/w） values are strongly affected, which consequently contributes to deviation from both the electrical and dielectric properties of A1/Co-doped PVA/p-Si （MPS） type SBD. In addition, the voltage-dependent profile of Dit is obtained from the low-high frequency capacitance （CLF-CHF） method.
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| 关 键 词： | 电压依赖性 介电性能 高频率 PVA 钴掺杂 Si 电气 室温 |
Frequency and voltage-dependent electrical and dielectric properties of Al/Co-doped PVA/p-Si structures at room temperature |
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| Ibrahim Yticedg,Ahmet Kaya,Semsettin Altlndal,Ibrahim Uslu.Frequency and voltage-dependent electrical and dielectric properties of Al/Co-doped PVA/p-Si structures at room temperature[J].Chinese Physics B,2014(4):545-550. |
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| Authors: | Ibrahim Yticedg Ahmet Kaya Semsettin Altlndal Ibrahim Uslu |
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| Abstract: | Al/Co-PVA/p-Si （MPS）, electrical and dielectric properties, AC electrical conductivity, frequencyand voltage dependence |
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| Keywords: | Al/Co-PVA/p-Si(MPS) electrical and dielectric properties AC electrical conductivity frequency and voltage dependence |
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