Journals / Turkish Journal of Physics / 2020 / Cilt: 44 - Sayı: 1

Frequency and voltage dependence of electrical conductivity, complex electric modulus, and dielectric properties of Al/Alq3 /p-Si structure

Pages
85–94
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Furthermore, it could be stated that the Alq3 material used in the interfacial layer is a useful material which could be used in addition to the conventional materials.

📌 3 Key Takeaways

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Objective & Hypothesis:In order to enhance the capacitance of the Al/p-Si metal-semiconductor structure, the Alq3 thin film was coated between these two layers using the spin coating technique as the interlayer.
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Key Findings & Data:The electrical conductivity, real and imaginary parts of electric modulus, dielectric loss and dielectric constant parameters were examined at the room temperature by the help of admittance measurements in the 100 kHz to 1 MHz frequency range.
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Conclusion & Impact:Furthermore, it could be stated that the Alq3 material used in the interfacial layer is a useful material which could be used in addition to the conventional materials.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Dielectric properties · spin coating · Al/Alq3 /p-Si

Abstract

In order to enhance the capacitance of the Al/p-Si metal-semiconductor structure, the Alq3 thin film was coated between these two layers using the spin coating technique as the interlayer. The electrical conductivity, real and imaginary parts of electric modulus, dielectric loss and dielectric constant parameters were examined at the room temperature by the help of admittance measurements in the 100 kHz to 1 MHz frequency range. The effect of frequency on the dielectric constant and dielectric loss values is negligible at the negative voltage values, up to about 0.8 V, and these values rapidly ascended after 0.8 V. The function of electrical modulus complex has been examined from the point of permittivity and impedance in order to clutch the contribution of the particle border on the relaxation mechanism of the materials. It is established that the examined dielectric parameters strongly correlated with the voltage and frequency. As a result, the changes in the dielectric parameters and electrical modulus due to the varying frequency were described as the results of relaxation process, polarization and surface conditions. Furthermore, it could be stated that the Alq3 material used in the interfacial layer is a useful material which could be used in addition to the conventional materials.

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Cite This Article

ORAK, İ., KARABULUT, A. (2020). Frequency and voltage dependence of electrical conductivity, complex electric modulus, and dielectric properties of Al/Alq3 /p-Si structure. Turkish Journal of Physics, Cilt: 44 - Sayı: 1, 85–94. https://ajindex.com/articles/377751

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References (11)

  1. Orak I, Kocyigit A, Turut A. The surface morphology properties and respond illumination impact of ZnO/n-Si photodiode by prepared atomic layer deposition technique. Journal of Alloys and Compounds 2017
  2. doi: 10.1016/j.jallcom.2016.08.295 [2] Sung MJ, Kim K, Kwon SK, Kim YH, Chung DS. Phenanthro [110, 9, 8-cdefg] carbazole-thiophene, donor–donor copolymer for narrow band green-selective organic photodiode. The Journal of Physical Chemistry C 2017
  3. 15931-15936. doi: 10.1021/acs.jpcc.7b04793 [3] Al-Hazmi FE, Yakuphanoglu F. Photoconducting and photovoltaic properties of ZnO: TiO2 composite/p-silicon heterojunction photodiode. Silicon 2018
  4. doi: 10.1007/s12633-016-9530-9 [4] Mohanraj K, Balasubramanian D, Chandrasekaran J, Babu B. Structural, morphological, optical and electrical properties of nail-shaped CdO nanoparticles synthesized by chemical route assisted microwave irradiation method for P–N junction diode application. Journal of Materials Science: Materials in Electronics 2017
  5. doi: 10.1007/s10854-017-6470-0 [5] Hanafy TA. Dielectric relaxation and alternating-current conductivity of gadolinium-doped poly (vinyl alcohol). Journal of Applied Polymer Science 2008
  6. doi: 10.1002/app.27567 [6] Karabulut A. Dielectric characterization of Si-based heterojunction with TiO2 interfacial layer. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2018
  7. doi:10.21597/jist.418869 [7] Gyanan MS, Kumar A. Tunable dielectric properties of TiO2 thin film based MOS systems for application in microelectronics. Superlattices and Microstructures 2016
  8. doi: 10.1016/j.spmi.2016.10.054 [8] Robertson J, Wallace RM. High-K materials and metal gates for CMOS applications. Materials Science and Engineering: R: Reports 2015
  9. doi: 10.1016/j.mser.2014.11.001 [9] Cherif A, Jomni S, Mliki N, Beji L. Electrical and dielectric characteristics of Al/Dy 2 O3 /p-Si heterostructure. Physica B:Condensed Matter 2013
  10. doi: 10.1016/j.physb.2013.07.026 [10] Hacioglu SO, Unlu NA, Aktas E, Hizalan G, Yildiz ED et al. A triazoloquinoxaline and benzodithiophene bearing low band gap copolymer for electrochromic and organic photovoltaic applications. Synthetic Metals 2017
  11. doi:10.1016/j.synthmet.2017.04.017 [11] Ali HAM, El-Zaidia EFM. Investigation of structural, electrical conductivity and dielectric properties of bulk Azure A chloride. The European Physical Journal Plus 2019