Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films

Mohammad Mostofa Kamal; Abu Hashan Bhuiyan

doi:doi:10.11648/j.am.20221104.13

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Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films

Mohammad Mostofa Kamal, Abu Hashan Bhuiyan

Published in Advances in Materials (Volume 11, Issue 4)

Received: 17 November 2022 Accepted: 2 December 2022 Published: 15 December 2022

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Abstract

The alternating current (ac) electrical conduction and dielectric properties of plasma polymerized pyrrole-N,N,3,5 tetramethylaniline (PPPy-PPTMA) bilayer composite thin films and a comparative study of those properties of PPPy monolayer, PPTMA monolayer and PPPy-PPTMA bilayer thin films have been discussed in this article. The monolayer and bilayer composite thin films were deposited by using a parallel plate capacitively coupled glow discharge reactor. To prepare the PPPy-PPTMA bilayer films, pyrrole monomer was used as the mother-material and TMA monomer was deposited in different deposition time ratio after the pyrrole films were formed. To study the ac electrical properties of PPPy-PPTMA bilayer composite thin film of different thicknesses the dielectric constant (ε'), the dielectric loss factor (ε"), and the ac conductivity (σ_ac) were investigated as the function of frequency at room temperature. It was observed that the ε' of bilayer thin films was decreased considerably with the increase of PPTMA content in the bilayer structure because PPTMA thin films has lower dielectric constant than that of the PPPy thin films, which was confirmed in the comparative study. This fact was explained by Maxwell-Wagner two-layered model and it was predicted that the grain size and the grain boundary capacitance were reduced with increasing PPTMA content in the bilayer structure which gives rise to a decrease in dielectric constant. The observed frequency dependence of the ε' was attributed to the dielectric relaxation process and to interfacial or space charge polarization. The peak appearing at a characteristic frequency in the dielectric loss spectra suggested that the charge motion and polymer segmental motion were strongly coupled which indicated the presence of relaxing dipoles in the PPPy-PPTMA bilayer thin films. However, the PPPy-PPTMA bilayer thin films were found to have higher values of ε' but lower values of ε" at any particular frequency for a particular thickness which suggested that they have higher ability to polarize and hold charge and also can store more energy but rate of energy dissipation is lower than that of its components PPPy and PPTMA thin films. The ac conductivity of the bilayer thin film was found to have lower values than those of its component films over whole frequency range. It was predicted that during the formation of bilayer thin films, inhomogeneous and irregular complex polymer-polymer interface might be formed whose disorderness may cause a decrease in the conductivity of those films.

Published in	Advances in Materials (Volume 11, Issue 4)
DOI	10.11648/j.am.20221104.13
Page(s)	94-101
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Plasma Polymerization, Bilayer Thin Films, AC Conduction, Dielectric Properties

References

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[2]	Sakthi Kumar D. and Yasuhika Yoshida. (2003). Dielectric properties of plasma polymerized pyrrole thin film capacitors, Surf. Coat. Technol, 169-170, 600-603.
[3]	El-Nahass M. M., Zeyada H. M., El-Samanoudy M. M. and El-Menyawy E. M. (2006). Electrical conduction mechanisms and dielectric properties of thermally evaporated N-(p-dimethylaminobenzyllidene)-p-nitroaniline thin films, Journal of Physics: Condensed Matter, 18, 5163-5173.
[4]	Liang T., Makita Y., and Kimura S. (2001). Effect of film thickness on the electrical properties of polyimide thin films, Polymer, 42, 4867-4872.
[5]	Joseph Mathai C., Saravanan S., Anantharaman M. R., Venkitachalam S., and Jayalekshmi S. (2002) Characterization of low dielectric constant polyaniline thin film synthesized by ac plasma polymerization technique, J. Phys. D: Appl. Phys., 35, 240-245.
[6]	Ram M. K., Annapoorni S., Panday S. S. and Malhotra B. D. (1998). Dielectric relaxation in thin conducting polyaniline films, Polymer, 39, 3399-3404.
[7]	Kamal M. M., and Bhuiyan A. H. (2011). Optical Characterization of Plasma Polymerized Pyrrole-N, N,3,5 Tetramethylaniline Bilayer Thin Films, J. App. Poly. Sci., 121, 2361-2368.
[8]	Kamal M. M. and Bhuiyan A. H. (2012). Direct Current Electrical Characterization of Plasma Polymerized Pyrrole-N, N, 3, 5 Tetramethylaniline Bilayer Thin Films, J. App. Poly. Sci., 125, 1033-1040.
[9]	Kamal M. M. and Bhuiyan A. H. (2013). Structural and Optical Characterization of Plasma Polymerized Pyrrole Monolayer Thin Films, Adv. Optoelect. Mat. Vol. 1, 11-17.
[10]	Kamal M. M. and Bhuiyan A. H. (2013). Thickness Dependent Direct Current Electrical Conduction in Plasma Polymerized Pyrrole Monolayer Thin Films, Adv. Mat. Res., 741, 59-64.
[11]	Kamal M. M. and Bhuiyan A. H. (2014). Direct Current Electrical Conduction Mechanism in Plasma Polymerized Pyrrole Thin Films, J. Mod. Sci. and Tech., 2, 1-9.
[12]	Kamal M. M. and Bhuiyan A. H. (2016). Temperature Dependence of DC Electrical Conduction in Plasma Polymerized Pyrrole Thin Films, J. Mod. Sci. and Tech., 4, 36-45.
[13]	Kamal M. M. and Bhuiyan A. H. (2020). Alternating Current Electrical Characterization of Plasma Polymerized Pyrrole Thin Films, Poly. Sci., Series B, 62, 264–271.
[14]	Blythe A. R. (1979). Electrical Properties of Polymers, Cambridge University Press, Cambridge, London.
[15]	Fu Y., Pathmanathan K., and Steven J. R. (1991). Dielectric and conductivity relaxation in poly(propylene glycol)–lithium triflate complexes, Chem. Phys. 94, 6326.
[16]	Biloiu C., Biloiu I. A., Sakai Y., Sugawara H., and Ohta A. (2004). Amorphous fluorocarbon polymer (a-C:F) films obtained by plasma enhanced chemical vapor deposition from perfluoro-octane (C₈F₁₈) vapor. II. Dielectric and insulating properties, J. Vac. Sci. Technol., A 22, 1158.
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[18]	Elliott S. R. (1977). A theory of A. C. conductivity in chalcogenide glasses, Philosophical Magazine, 36, 1291–1304.

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Mohammad Mostofa Kamal, Abu Hashan Bhuiyan. (2022). Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films. Advances in Materials, 11(4), 94-101. https://doi.org/10.11648/j.am.20221104.13

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ACS Style

Mohammad Mostofa Kamal; Abu Hashan Bhuiyan. Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films. Adv. Mater. 2022, 11(4), 94-101. doi: 10.11648/j.am.20221104.13

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AMA Style

Mohammad Mostofa Kamal, Abu Hashan Bhuiyan. Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films. Adv Mater. 2022;11(4):94-101. doi: 10.11648/j.am.20221104.13

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@article{10.11648/j.am.20221104.13,
  author = {Mohammad Mostofa Kamal and Abu Hashan Bhuiyan},
  title = {Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films},
  journal = {Advances in Materials},
  volume = {11},
  number = {4},
  pages = {94-101},
  doi = {10.11648/j.am.20221104.13},
  url = {https://doi.org/10.11648/j.am.20221104.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20221104.13},
  abstract = {The alternating current (ac) electrical conduction and dielectric properties of plasma polymerized pyrrole-N,N,3,5 tetramethylaniline (PPPy-PPTMA) bilayer composite thin films and a comparative study of those properties of PPPy monolayer, PPTMA monolayer and PPPy-PPTMA bilayer thin films have been discussed in this article. The monolayer and bilayer composite thin films were deposited by using a parallel plate capacitively coupled glow discharge reactor. To prepare the PPPy-PPTMA bilayer films, pyrrole monomer was used as the mother-material and TMA monomer was deposited in different deposition time ratio after the pyrrole films were formed. To study the ac electrical properties of PPPy-PPTMA bilayer composite thin film of different thicknesses the dielectric constant (ε'), the dielectric loss factor (ε"), and the ac conductivity (σac) were investigated as the function of frequency at room temperature. It was observed that the ε' of bilayer thin films was decreased considerably with the increase of PPTMA content in the bilayer structure because PPTMA thin films has lower dielectric constant than that of the PPPy thin films, which was confirmed in the comparative study. This fact was explained by Maxwell-Wagner two-layered model and it was predicted that the grain size and the grain boundary capacitance were reduced with increasing PPTMA content in the bilayer structure which gives rise to a decrease in dielectric constant. The observed frequency dependence of the ε' was attributed to the dielectric relaxation process and to interfacial or space charge polarization. The peak appearing at a characteristic frequency in the dielectric loss spectra suggested that the charge motion and polymer segmental motion were strongly coupled which indicated the presence of relaxing dipoles in the PPPy-PPTMA bilayer thin films. However, the PPPy-PPTMA bilayer thin films were found to have higher values of ε' but lower values of ε" at any particular frequency for a particular thickness which suggested that they have higher ability to polarize and hold charge and also can store more energy but rate of energy dissipation is lower than that of its components PPPy and PPTMA thin films. The ac conductivity of the bilayer thin film was found to have lower values than those of its component films over whole frequency range. It was predicted that during the formation of bilayer thin films, inhomogeneous and irregular complex polymer-polymer interface might be formed whose disorderness may cause a decrease in the conductivity of those films.},
 year = {2022}
}

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TY  - JOUR
T1  - Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films
AU  - Mohammad Mostofa Kamal
AU  - Abu Hashan Bhuiyan
Y1  - 2022/12/15
PY  - 2022
N1  - https://doi.org/10.11648/j.am.20221104.13
DO  - 10.11648/j.am.20221104.13
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 94
EP  - 101
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20221104.13
AB  - The alternating current (ac) electrical conduction and dielectric properties of plasma polymerized pyrrole-N,N,3,5 tetramethylaniline (PPPy-PPTMA) bilayer composite thin films and a comparative study of those properties of PPPy monolayer, PPTMA monolayer and PPPy-PPTMA bilayer thin films have been discussed in this article. The monolayer and bilayer composite thin films were deposited by using a parallel plate capacitively coupled glow discharge reactor. To prepare the PPPy-PPTMA bilayer films, pyrrole monomer was used as the mother-material and TMA monomer was deposited in different deposition time ratio after the pyrrole films were formed. To study the ac electrical properties of PPPy-PPTMA bilayer composite thin film of different thicknesses the dielectric constant (ε'), the dielectric loss factor (ε"), and the ac conductivity (σac) were investigated as the function of frequency at room temperature. It was observed that the ε' of bilayer thin films was decreased considerably with the increase of PPTMA content in the bilayer structure because PPTMA thin films has lower dielectric constant than that of the PPPy thin films, which was confirmed in the comparative study. This fact was explained by Maxwell-Wagner two-layered model and it was predicted that the grain size and the grain boundary capacitance were reduced with increasing PPTMA content in the bilayer structure which gives rise to a decrease in dielectric constant. The observed frequency dependence of the ε' was attributed to the dielectric relaxation process and to interfacial or space charge polarization. The peak appearing at a characteristic frequency in the dielectric loss spectra suggested that the charge motion and polymer segmental motion were strongly coupled which indicated the presence of relaxing dipoles in the PPPy-PPTMA bilayer thin films. However, the PPPy-PPTMA bilayer thin films were found to have higher values of ε' but lower values of ε" at any particular frequency for a particular thickness which suggested that they have higher ability to polarize and hold charge and also can store more energy but rate of energy dissipation is lower than that of its components PPPy and PPTMA thin films. The ac conductivity of the bilayer thin film was found to have lower values than those of its component films over whole frequency range. It was predicted that during the formation of bilayer thin films, inhomogeneous and irregular complex polymer-polymer interface might be formed whose disorderness may cause a decrease in the conductivity of those films.
VL  - 11
IS  - 4
ER  -

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Author Information

Mohammad Mostofa Kamal

Department of Physical Sciences, Independent University, Bangladesh (IUB), Dhaka, Bangladesh
Abu Hashan Bhuiyan

Department of Physics, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh

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APA Style

Mohammad Mostofa Kamal, Abu Hashan Bhuiyan. (2022). Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films. Advances in Materials, 11(4), 94-101. https://doi.org/10.11648/j.am.20221104.13

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ACS Style

Mohammad Mostofa Kamal; Abu Hashan Bhuiyan. Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films. Adv. Mater. 2022, 11(4), 94-101. doi: 10.11648/j.am.20221104.13

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AMA Style

Mohammad Mostofa Kamal, Abu Hashan Bhuiyan. Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films. Adv Mater. 2022;11(4):94-101. doi: 10.11648/j.am.20221104.13

Copy | Download

@article{10.11648/j.am.20221104.13,
  author = {Mohammad Mostofa Kamal and Abu Hashan Bhuiyan},
  title = {Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films},
  journal = {Advances in Materials},
  volume = {11},
  number = {4},
  pages = {94-101},
  doi = {10.11648/j.am.20221104.13},
  url = {https://doi.org/10.11648/j.am.20221104.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20221104.13},
  abstract = {The alternating current (ac) electrical conduction and dielectric properties of plasma polymerized pyrrole-N,N,3,5 tetramethylaniline (PPPy-PPTMA) bilayer composite thin films and a comparative study of those properties of PPPy monolayer, PPTMA monolayer and PPPy-PPTMA bilayer thin films have been discussed in this article. The monolayer and bilayer composite thin films were deposited by using a parallel plate capacitively coupled glow discharge reactor. To prepare the PPPy-PPTMA bilayer films, pyrrole monomer was used as the mother-material and TMA monomer was deposited in different deposition time ratio after the pyrrole films were formed. To study the ac electrical properties of PPPy-PPTMA bilayer composite thin film of different thicknesses the dielectric constant (ε'), the dielectric loss factor (ε"), and the ac conductivity (σac) were investigated as the function of frequency at room temperature. It was observed that the ε' of bilayer thin films was decreased considerably with the increase of PPTMA content in the bilayer structure because PPTMA thin films has lower dielectric constant than that of the PPPy thin films, which was confirmed in the comparative study. This fact was explained by Maxwell-Wagner two-layered model and it was predicted that the grain size and the grain boundary capacitance were reduced with increasing PPTMA content in the bilayer structure which gives rise to a decrease in dielectric constant. The observed frequency dependence of the ε' was attributed to the dielectric relaxation process and to interfacial or space charge polarization. The peak appearing at a characteristic frequency in the dielectric loss spectra suggested that the charge motion and polymer segmental motion were strongly coupled which indicated the presence of relaxing dipoles in the PPPy-PPTMA bilayer thin films. However, the PPPy-PPTMA bilayer thin films were found to have higher values of ε' but lower values of ε" at any particular frequency for a particular thickness which suggested that they have higher ability to polarize and hold charge and also can store more energy but rate of energy dissipation is lower than that of its components PPPy and PPTMA thin films. The ac conductivity of the bilayer thin film was found to have lower values than those of its component films over whole frequency range. It was predicted that during the formation of bilayer thin films, inhomogeneous and irregular complex polymer-polymer interface might be formed whose disorderness may cause a decrease in the conductivity of those films.},
 year = {2022}
}

Copy | Download

TY  - JOUR
T1  - Comparative Study on the Alternating Current Conduction and Dielectric Properties of Plasma Polymerized Monolayer and Bilayer Thin Films
AU  - Mohammad Mostofa Kamal
AU  - Abu Hashan Bhuiyan
Y1  - 2022/12/15
PY  - 2022
N1  - https://doi.org/10.11648/j.am.20221104.13
DO  - 10.11648/j.am.20221104.13
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 94
EP  - 101
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20221104.13
AB  - The alternating current (ac) electrical conduction and dielectric properties of plasma polymerized pyrrole-N,N,3,5 tetramethylaniline (PPPy-PPTMA) bilayer composite thin films and a comparative study of those properties of PPPy monolayer, PPTMA monolayer and PPPy-PPTMA bilayer thin films have been discussed in this article. The monolayer and bilayer composite thin films were deposited by using a parallel plate capacitively coupled glow discharge reactor. To prepare the PPPy-PPTMA bilayer films, pyrrole monomer was used as the mother-material and TMA monomer was deposited in different deposition time ratio after the pyrrole films were formed. To study the ac electrical properties of PPPy-PPTMA bilayer composite thin film of different thicknesses the dielectric constant (ε'), the dielectric loss factor (ε"), and the ac conductivity (σac) were investigated as the function of frequency at room temperature. It was observed that the ε' of bilayer thin films was decreased considerably with the increase of PPTMA content in the bilayer structure because PPTMA thin films has lower dielectric constant than that of the PPPy thin films, which was confirmed in the comparative study. This fact was explained by Maxwell-Wagner two-layered model and it was predicted that the grain size and the grain boundary capacitance were reduced with increasing PPTMA content in the bilayer structure which gives rise to a decrease in dielectric constant. The observed frequency dependence of the ε' was attributed to the dielectric relaxation process and to interfacial or space charge polarization. The peak appearing at a characteristic frequency in the dielectric loss spectra suggested that the charge motion and polymer segmental motion were strongly coupled which indicated the presence of relaxing dipoles in the PPPy-PPTMA bilayer thin films. However, the PPPy-PPTMA bilayer thin films were found to have higher values of ε' but lower values of ε" at any particular frequency for a particular thickness which suggested that they have higher ability to polarize and hold charge and also can store more energy but rate of energy dissipation is lower than that of its components PPPy and PPTMA thin films. The ac conductivity of the bilayer thin film was found to have lower values than those of its component films over whole frequency range. It was predicted that during the formation of bilayer thin films, inhomogeneous and irregular complex polymer-polymer interface might be formed whose disorderness may cause a decrease in the conductivity of those films.
VL  - 11
IS  - 4
ER  -

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